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Interrupted time series (ITS) design is commonly used to evaluate the impact of interventions in healthcare settings. Segmented regression (SR) is the most commonly used statistical method and has been shown to be useful in practical applications involving ITS designs. Nevertheless, SR is prone to aggregation bias, which leads to imprecision and loss of power to detect clinically meaningful differences. The objective of this article is to present a weighted SR method, where variability across patients within the healthcare facility and across time points is incorporated through weights. We present the methodological framework, provide optimal weights associated with data at each time point and discuss relevant statistical inference. We conduct extensive simulations to evaluate performance of our method and provide comparative analysis with the traditional SR using established performance criteria such as bias, mean square error and statistical power. Illustrations using real data is also provided. In most simulation scenarios considered, the weighted SR method produced estimators that are uniformly more precise and relatively less biased compared to the traditional SR. The weighted approach also associated with higher statistical power in the scenarios considered. The performance difference is much larger for data with high variability across patients within healthcare facilities. The weighted method proposed here allows us to account for the heterogeneity in the patient population, leading to increased accuracy and power across all scenarios. We recommend researchers to carefully design their studies and determine their sample size by incorporating heterogeneity in the patient population.

Background The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) extension statement for network meta-analysis (NMA) published in 2015 promotes comprehensive reporting in published systematic reviews with NMA. PRISMA-NMA includes 32 items: 27 core items as indicated in the 2009 PRISMA Statement and five items specific to the reporting of NMAs. Although NMA reporting is improving, it is unclear whether PRISMA-NMA has accelerated this improvement. We aimed to investigate the impact of PRISMA-NMA and highlight key items that require attention and improvement. Methods We updated our previous collection of NMAs with articles published between April 2015 and July 2018. We assessed the completeness of reporting for each NMA, including main manuscript and online supplements, using the PRISMA-NMA checklist. The PRISMA-NMA checklist originally includes 32 total items (i.e. a 32-point scale original PRISMA-NMA score). We also prepared a modified version of the PRISMA-NMA checklist with 49 items to evaluate separately at a more granular level all multiple-content items (i.e. a 49-point scale modified PRISMA-NMA score). We compared average reporting scores of articles published until and after 2015. Results In the 1144 included NMAs the mean modified PRISMA-NMA score was 32.1 (95% CI 31.8–32.4) of a possible 49-excellence-score. For 1-year increase, the mean modified score increased by 0.96 (95% CI 0.32 to 1.59) for 389 NMAs published until 2015 and by 0.53 (95% CI 0.02 to 1.04) for 755 NMAs published after 2015. The mean modified PRISMA-NMA score for NMAs published after 2015 was higher by 0.81 (95% CI 0.23 to 1.39) compared to before 2015 when adjusting for journal impact factor, type of review, funding, and treatment category. Description of summary effect sizes to be used, presentation of individual study data, sources of funding for the systematic review, and role of funders dropped in frequency after 2015 by 6–16%. Conclusions NMAs published after 2015 more frequently reported the five items associated with NMA compared to those published until 2015. However, improvement in reporting after 2015 is compatible with that observed on a yearly basis until 2015, and hence, it could not be attributed solely to the publication of the PRISMA-NMA.

[See related articles at [www.cmaj.ca/lookup/doi/10.1503/cmaj.202066][2]][2] and [[www.cmaj.ca/lookup/doi/10.1503/cmaj.210036][3]][3] KEY POINTS Machine learning — the process of developing systems that learn from data to recognize patterns and make accurate predictions of future events[1][3

BackgroundFalls are a leading cause of injury-related hospitalizations among adults aged 65 years and older and may result in social isolation.ObjectiveTo summarise evidence on falls and subsequent social isolation and/or loneliness in older adults through a scoping review.Eligibility criteriaStudies were eligible for inclusion if the population had a mean age of 60 years or older, they examined falls and subsequent social isolation, loneliness, fear of falling or risk factors and were primary studies (eg, experimental, quasi-experimental, observational and qualitative).Sources of evidenceMEDLINE, CINAHL, Embase, Ageline and grey literature from inception until 11 January 2021.Charting methodsA screening and charting form was developed and pilot-tested. Subsequently, two reviewers screened citations and full-text articles, and charted the evidence.ResultsAfter screening 4993 citations and 304 full-text articles, 39 studies were included in this review. Participants had a history of falling (range: 11% to 100%). Most studies were conducted in Europe (44%) and North America (33%) and were of the cross-sectional study design (66.7%), in the community (79%). Studies utilised 15 different scales. Six studies examined risk factors for social isolation and activity restriction associated with fear of falling. Six studies reported mental health outcomes related to falls and subsequent social isolation.ConclusionsConsistency in outcome measurement is recommended, as multiple outcomes were used across the included studies. Further research is warranted in this area, given the ageing population and the importance of falls and social isolation to the health of older adults.Scoping review registration number10.17605/OSF.IO/2R8HM.

The objective of this scoping review is to identify and characterize relevant knowledge translation methods tools (those that provide guidance for optimized knowledge translation practice) to uncover candidate quality indicators to inform a future quality assessment tool for knowledge translation strategies.Knowledge translation strategies (defined as including knowledge translation interventions, tools, and products) target various knowledge users including patients, clinicians, researchers, or policy-makers. The development and use of strategies that support knowledge translation practice have been rapidly increasing, making it difficult for knowledge users to decide which to use. There is limited evidence-based guidance or measures to help assess the overall quality of knowledge translation strategies.Empirical and non-empirical documents will be considered if they explicitly describe a knowledge translation methods tool and its development, evaluation or validation, methodological strengths or limitations, and/or use over time. The review will consider a knowledge translation methods tool if it falls within at least one knowledge translation domain (ie, implementation, dissemination, sustainability, scalability, integrated knowledge translation) in the health field.We will conduct a systematic search of relevant electronic databases and gray literature. The search strategy will be developed iteratively by an experienced medical information specialist and peer-reviewed with the PRESS checklist. The search will be limited to English-only documents published from 2005 onward. Documents will be independently screened, selected, and extracted by two researchers. Data will be analyzed and summarized descriptively including the characteristics of the included documents, knowledge translation methods tools, and candidate quality indicators.Open Science Framework (https://osf.io/chxvq).

Availability of data and materials: Not applicable for this opinion paper, but the Additional files contain a collation and account of many of the sources used. Copyright © The Author(s) 2022. During the SARS-CoV-2 pandemic, astonishingly rapid research averted millions of deaths worldwide through new vaccines and repurposed and new drugs. Evidence use informed life-saving national policies including non-pharmaceutical interventions. Simultaneously, there was unprecedented waste, with many underpowered trials on the same drugs. We identified lessons from COVID-19 research responses by applying WHO’s framework for research systems. It has four functions—governance, securing finance, capacity-building, and production and use of research—and nine components. Two linked questions focused the analysis. First, to what extent have achievements in knowledge production and evidence use built on existing structures and capacity in national health research systems? Second, did the features of such systems mitigate waste? We collated evidence on seven countries, Australia, Brazil, Canada, Germany, New Zealand, the United Kingdom and the United States, to identify examples of achievements and challenges. We used the data to develop lessons for each framework component. Research coordination, prioritization and expedited ethics approval contributed to rapid identification of new therapies, including dexamethasone in the United Kingdom and Brazil. Accelerated vaccines depended on extensive funding, especially through the Operation Warp Speed initiative in the United States, and new platforms created through long-term biomedical research capacity in the United Kingdom and, for messenger ribonucleic acid (mRNA) vaccines, in Canada, Germany and the United States. Research capacity embedded in the United Kingdom’s healthcare system resulted in trial acceleration and waste avoidance. Faster publication of research saved lives, but raised challenges. Public/private collaborations made major contributions to vastly accelerating new products, available worldwide, though unequally. Effective developments of living (i.e. regularly updated) reviews and guidelines, especially in Australia and Canada, extended existing expertise in meeting users’ needs. Despite complexities, effective national policy responses (less evident in Brazil, the United Kingdom and the United States) also saved lives by drawing on health research system features, including collaboration among politicians, civil servants and researchers; good communications; and willingness to use evidence. Comprehensive health research strategies contributed to success in research production in the United Kingdom and in evidence use by political leadership in New Zealand. In addition to waste, challenges included equity issues, public involvement and non-COVID research. We developed recommendations, but advocate studies of further countries. United Kingdom’s Medical Research Council grant MR/K014773/1 “Time Lags in the Translation of Medical Research: Developing a Case Study Approach to Achieve a Better Understanding” from the MRC’s Economic Impact call from the Methodology Research Programme.

ObjectivesThe COVID-19 pandemic has stimulated growing research on treatment options. We aim to provide an overview of the characteristics of studies evaluating COVID-19 treatment.DesignRapid scoping reviewData sourcesMedline, Embase and biorxiv/medrxiv from inception to 15 May 2021.SettingHospital and community care.ParticipantsCOVID-19 patients of all ages.InterventionsCOVID-19 treatment.ResultsThe literature search identified 616 relevant primary studies of which 188 were randomised controlled trials and 299 relevant evidence syntheses. The studies and evidence syntheses were conducted in 51 and 39 countries, respectively.Most studies enrolled patients admitted to acute care hospitals (84%), included on average 169 participants, with an average age of 60 years, study duration of 28 days, number of effect outcomes of four and number of harm outcomes of one. The most common primary outcome was death (32%).The included studies evaluated 214 treatment options. The most common treatments were tocilizumab (11%), hydroxychloroquine (9%) and convalescent plasma (7%). The most common therapeutic categories were non-steroidal immunosuppressants (18%), steroids (15%) and antivirals (14%). The most common therapeutic categories involving multiple drugs were antimalarials/antibiotics (16%), steroids/non-steroidal immunosuppressants (9%) and antimalarials/antivirals/antivirals (7%). The most common treatments evaluated in systematic reviews were hydroxychloroquine (11%), remdesivir (8%), tocilizumab (7%) and steroids (7%).The evaluated treatment was in favour 50% and 36% of the evaluations, according to the conclusion of the authors of primary studies and evidence syntheses, respectively.ConclusionsThis rapid scoping review characterised a growing body of comparative-effectiveness primary studies and evidence syntheses. The results suggest future studies should focus on children, elderly ≥65 years of age, patients with mild symptoms, outpatient treatment, multimechanism therapies, harms and active comparators. The results also suggest that future living evidence synthesis and network meta-analysis would provide additional information for decision-makers on managing COVID-19.

Background The long-term care setting poses unique challenges and opportunities for effective knowledge translation. The objectives of this review are to (1) synthesize barriers and facilitators to implementing evidence-based guidelines in long-term care, as defined as a home where residents require 24-h nursing care, and 50% of the population is over the age of 65 years; and (2) map barriers and facilitators to the Behaviour Change Wheel framework to inform theory-guided knowledge translation strategies. Methods Following the guidance of the Cochrane Qualitative and Implementation Methods Group Guidance Series and the ENTREQ reporting guidelines, we systematically reviewed the reported experiences of long-term care staff on implementing evidence-based guidelines into practice. MEDLINE Pubmed, EMBASE Ovid, and CINAHL were searched from the earliest date available until May 2021. Two independent reviewers selected primary studies for inclusion if they were conducted in long-term care and reported the perspective or experiences of long-term care staff with implementing an evidence-based practice guideline about health conditions. Appraisal of the included studies was conducted using the Critical Appraisal Skills Programme Checklist and confidence in the findings with the GRADE-CERQual approach. Findings After screening 2680 abstracts, we retrieved 115 full-text articles; 33 of these articles met the inclusion criteria. Barriers included time constraints and inadequate staffing, cost and lack of resources, and lack of teamwork and organizational support. Facilitators included leadership and champions, well-designed strategies, protocols, and resources, and adequate services, resources, and time. The most frequent Behaviour Change Wheel components were physical and social opportunity and psychological capability. We concluded moderate or high confidence in all but one of our review findings. Conclusions Future knowledge translation strategies to implement guidelines in long-term care should target physical and social opportunity and psychological capability, and include interventions such as environmental restructuring, training, and education.

In response to the rapid spread of SARS-CoV-2, hospitals in Canada enacted temporary visitor restrictions to limit the spread of COVID-19 and preserve personal protective equipment supplies. This study describes the extent, variation, and fluctuation of Canadian adult intensive care unit (ICU) visitation policies before and during the first wave of the COVID-19 pandemic. We conducted an environmental scan of Canadian hospital visitation policies throughout the first wave of the pandemic. We conducted a two-phased study analyzing both quantitative and qualitative data. We collected 257 documents with reference to visitation policies (preCOVID, 101 [39%]; midCOVID, 71 [28%]; and lateCOVID, 85 [33%]). Of these 257 documents, 38 (15%) were ICU-specific and 70 (27%) referenced the ICU. Most policies during the midCOVID/lateCOVID pandemic period allowed no visitors with specific exceptions (e.g., end-of-life). Framework analysis revealed five overarching themes: 1) reasons for restricted visitation policies; 2) visitation policies and expectations; 3) exceptions to visitation policy; 4) patient and family-centred care; and 5) communication and transparency. During the first wave of the COVID-19 pandemic, most Canadian hospitals had public-facing visitor restriction policies with specific exception categories, most commonly for patients at end-of-life, patients requiring assistance, or COVID-19 positive patients (varying from not allowed to case-by-case). Further studies are needed to understand the consistency with which visitation policies were operationalized and how they may have impacted patient- and family-centred care.

COVID-19 has disproportionately placed women in academic science on the frontlines of domestic and clinical care compared to men. As a result, women in science are publishing less and potentially acquiring less funding during COVID-19 than compared to before. This widens the pre-existing gap between men and women in prevailing, publication-based measures of productivity used to determine academic career progression. Early career women and those with intersectional identities associated with greater inequities, are facing unique challenges during this time. We argue that women will fall further behind unless academic reward systems adjust how and what they evaluate. We propose several strategies that academic institutions, funders, journals, and men in academic science can take.

Empirical studies to disentangle the effects of multicomponent implementation interventions are needed to inform the development of future interventions. This study aims to examine which behavior change techniques (BCTs) primarily targeting canteen manager are associated with school’s healthy canteen policy implementation. This is a secondary data analysis from three randomized controlled trials assessing the impact of a “high,” “medium,” and “low” intensity intervention primarily targeting canteen managers on school’s implementation of a healthy canteen policy. The policy required primary schools to remove all “red” (less healthy items) or “banned” (sugar sweetened beverages) items from regular sale and ensure that “green” (healthier items) dominated the menu (>50%). The delivery of BCTs were retrospectively coded. We undertook an elastic net regularized logistic regression with all BCTs in a single model. Five k-fold cross-validation elastic net models were conducted. The percentage of times each strategy remained across 1,000 replications was calculated. For no “red” or “banned” items (n = 162), the strongest BCTs were: problem solving, goal setting (behavior), and review behavior goals. These BCTs were identified in 100% of replications as a strong predictor in the cross-validation elastic net models. For the outcome relating to >50% “green” items, the BCTs problem solving, instruction on how to perform behavior and demonstration of behavior were the strongest predictors. Two strategies were identified in 100% of replications as a strong (i.e., problem solving) or weak predictor (i.e., feedback on behavior). This study identified unique BCTs associated with the implementation of a healthy canteen policy.

BACKGROUND/OBJECTIVES: Virtual (i.e., telephone or videoconference) care was broadly implemented because of the COVID-19 pandemic. Our objectives were to compare the diagnostic accuracy of virtual to in-person cognitive assessments and tests and barriers to virtual cognitive assessment implementation. DESIGN: Systematic review and meta-analysis. SETTING: MEDLINE, EMBASE, CDSR, CENTRAL, PsycINFO, and gray literature (inception to April 1, 2020). PARTICIPANTS AND INTERVENTIONS: Studies describing the accuracy or reliability of virtual compared with in-person cognitive assessments (i.e., reference standard) for diagnosing dementia or mild cognitive impairment (MCI), identifying virtual cognitive test cutoffs suggestive of dementia or MCI, or describing correlations between virtual and in-person cognitive test scores in adults. MEASUREMENTS: Reviewer pairs independently conducted study screening, data abstraction, and risk of bias appraisal. RESULTS: Our systematic review included 121 studies (15,832 patients). Two studies demonstrated that virtual cognitive assessments could diagnose dementia with good reliability compared with in-person cognitive assessments: weighted kappa 0.51 (95% confidence interval [CI] 0.41-0.62) and 0.63 (95% CI 0.4-0.9), respectively. Videoconference-based cognitive assessments were 100% sensitive and specific for diagnosing dementia compared with in-person cognitive assessments in a third study. No studies compared telephone with in-person cognitive assessment accuracy. The Telephone Interview for Cognitive Status (TICS; maximum score 41) and modified TICS (maximum score 50) were the only virtual cognitive tests compared with in-person cognitive assessments in >2 studies with extractable data for meta-analysis. The optimal TICS cutoff suggestive of dementia ranged from 22 to 33, but it was 28 or 30 when testing was conducted in English (10 studies; 1673 patients). Optimal modified TICS cutoffs suggestive of MCI ranged from 28 to 31 (3 studies; 525 patients). Sensory impairment was the most often voiced condition affecting assessment. CONCLUSION: Although there is substantial evidence supporting virtual cognitive assessment and testing, we identified critical gaps in diagnostic certainty.

Evidence generated from partnering with parents to design and conduct research together may be used to refine, adjust, and modify future research approaches. This study aimed to describe the initial approaches to parent engagement in the design of the PARENT trial as well as understand parent perspectives on the acceptability and relevance of the PARENT trial and potential barriers and facilitators to participation.Parents participating in the TARGet Kids! cohort were invited to participate in a focus group, called the PARENT panel, to co-design the PARENT trial. This focus group was conducted to capture diverse individual and collective parents’ experiences. Overall methodological approaches for the PARENT panel were informed by the CIHR Strategy for Patient Oriented Research (SPOR) guiding principles (mutual respect, co-building, inclusiveness, and support) for patient engagement in research, and facilitated through the Knowledge Translation Program in the Li Ka Shing Knowledge Institute at Unity Health Toronto. Using a Nominal Group Technique, the PARENT panel provided feedback on the feasibility, relevance, and acceptability of the proposed intervention. Findings from this work will be used to further refine, adjust, and modify the next iteration of the PARENT trial, which will also serve as an opportunity to discuss the efforts made by researchers to incorporate parent suggestions and what additional steps are required for improved patient engagement.

BACKGROUND: Increasing availability of competing biosimilar alternatives makes it challenging to make treatment decisions. The purpose of this review is to evaluate the comparative efficacy and safety of ultra-long-/long-/intermediate-acting insulin products and biosimilar insulin compared to human/animal insulin in adults with type 1 diabetes mellitus (T1DM). METHODS: MEDLINE, EMBASE, CENTRAL, and grey literature were searched from inception to March 27, 2019. Randomized controlled trials (RCTs), quasi-experimental studies, and cohort studies of adults with T1DM receiving ultra-long-/long-/intermediate-acting insulin, compared to each other, as well as biosimilar insulin compared to human/animal insulin were eligible for inclusion. Two reviewers independently screened studies, abstracted data, and appraised risk-of-bias. Pairwise meta-analyses and network meta-analyses (NMA) were conducted. Summary effect measures were mean differences (MD) and odds ratios (OR). RESULTS: We included 65 unique studies examining 14,200 patients with T1DM. Both ultra-long-acting and long-acting insulin were superior to intermediate-acting insulin in reducing A1c, FPG, weight gain, and the incidence of major, serious, or nocturnal hypoglycemia. For fasting blood glucose, long-acting once a day (od) was superior to long-acting twice a day (bid) (MD - 0.44, 95% CI: - 0.81 to - 0.06) and ultra-long-acting od was superior to long-acting bid (MD - 0.73, 95% CI - 1.36 to - 0.11). For weight change, long-acting od was inferior to long-acting bid (MD 0.58, 95% CI: 0.05 to 1.10) and long-acting bid was superior to long-action biosimilar od (MD - 0.90, 95% CI: - 1.67 to - 0.12). CONCLUSIONS: Our results can be used to tailor insulin treatment according to the desired results of patients and clinicians and inform strategies to establish a competitive clinical market, address systemic barriers, expand the pool of potential suppliers, and favor insulin price reduction. PROSPERO REGISTRATION: CRD42017077051 SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s11606-021-06642-7.

Background virtual care has been critical during the COVID-19 pandemic, but there may be inequities in accessing different virtual modalities (i.e. telephone or videoconference). Objective to describe patient-specific factors associated with receiving different virtual care modalities. Design cross-sectional study. Setting and Subjects we reviewed medical records of all patients assessed virtually in the geriatric medicine clinic at St. Michael’s Hospital, Toronto, Canada, between 17 March and 13 July 2020. Methods we derived adjusted odds ratios (OR), risk differences (RDs) and marginal and predicted probabilities, with 95% confidence intervals, from a multivariable logistic regression model, which tested the association between having a videoconference assessment (vs. telephone) and patient age, sex, computer ability, education, frailty (Clinical Frailty Scale score), history of cognitive impairment and immigration history; language of assessment and caregiver involvement in assessment. Results our study included 330 patients (227 telephone and 103 videoconference assessments). The median population age was 83 (Q1–Q3, 76–88) and 45.2% were male. Frailty (adjusted OR 0.62, 0.45–0.85; adjusted RD −0.08, −0.09 to −0.06) and absence of a caregiver (adjusted OR 0.12, 0.06–0.24; adjusted RD −0.35, −0.43 to −0.26) were associated with lower odds of videoconference assessment. Only 32 of 98 (32.7%) patients who independently use a computer participated in videoconference assessments. Conclusions older adults who are frail or lack a caregiver to attend assessments with them may not have equitable access to videoconference-based virtual care. Future research should evaluate interventions that support older adults in accessing videoconference assessments.

Background Due to the explosion in rapid reviews in the literature during COVID-19, their utility in universal health coverage and in other routine situations, there is now a need to document and further advance the application of rapid review methods, particularly in low-resource settings where a scarcity of resources may preclude the production of a full systematic review. This is the introductory article for a series of articles to further the discussion of rapid reviews for health policy and systems decision-making. Main body The series of papers builds on a practical guide on the conduct and reporting of rapid reviews that was published in 2019. The first paper provides an evaluation of a rapid review platform that was implemented in four centers in low-resource settings, the second paper presents approaches to tailor the methods for decision-makers through rapid reviews, the third paper focuses on selecting different types of rapid review products, and the fourth pertains to reporting the results from a rapid review. Conclusion Rapid reviews have a great potential to inform universal health coverage and global health security interventions, moving forward, including preparedness and response plans to future pandemics. This series of articles will be useful for both researchers leading rapid reviews, as well as decision-makers using the results from rapid reviews.

Background Despite improvement, sepsis mortality rates remain high, with an estimated 11 million sepsis-related deaths globally in 2017 (Rudd et. al, Lancet 395:200-211, 2020). Low- and middle-income countries (LMICs) are estimated to account for 85% of global sepsis mortality; however, evidence for improved sepsis mortality in LMICs is lacking. We aimed to improve sepsis care and outcomes through development and evaluation of a sepsis treatment protocol tailored to the Tikur Anbessa Specialized Hospital Emergency Department, Ethiopia, context. Methods We employed a mixed methods design, including an interrupted times series study, pre-post knowledge testing, and process evaluation. The primary outcome was the proportion of patients receiving appropriate sepsis care (blood culture collection before antibiotics and initiation of appropriate antibiotics within 1 h of assessment). Secondary outcomes included time to antibiotic administration, 72-h sepsis mortality, and 90-day all-cause mortality. Due to poor documentation, we were unable to assess our primary outcome and time to antibiotic administration. We used segmented regression with outcomes as binomial proportions to assess the impact of the intervention on mortality. Pre-post knowledge test scores were analyzed using the Student’s t-test to compare group means for percentage of scenarios with correct diagnosis. Results A total of 113 and 300 patients were enrolled in the pre-implementation and post-implementation phases respectively. While age and gender were similar across the phases, a higher proportion (31 vs. 57%) of patients had malignancies in the post-implementation phase. We found a significant change in trend between the phases, with a trend for increasing odds of survival in the pre-implementation phase (OR 1.24, 95% CI 0.98–1.56), and a shift down, with odds of survival virtually flat (OR 0.95, 95% CI. 0.88–1.03) in the post-implementation phases for 72-h mortality, and trends for survival pre- and post-implementation are virtually flat for 90-day mortality. We found no significant difference in pre-post knowledge test scores, with interpretation limited by response rate. Implementation quality was negatively impacted by resource challenges. Conclusion We found no improvement in sepsis outcomes, with a trend for increasing odds of survival lost post-implementation and no significant change in knowledge pre- and post-implementation. Variable availability of resources was the principal barrier to implementation. Trial registration Open Science Framework osf.io/ju4ga. Registered June 28, 2017

Atypical disease presentations are common in older adults with COVID-19. The objective of this study was to determine the prevalence of atypical and typical symptoms in older adults with COVID-19 through progressive pandemic waves and the association of these symptoms with in-hospital mortality. This retrospective cohort study included consecutive adults aged over 65 years with confirmed COVID-19 infection who were admitted to seven hospitals in Toronto, Canada from March 1, 2020 to June 30, 2021. The median age for the 1786 patients was 78.0 years and 847 (47.5%) were female. Atypical symptoms (as defined by geriatric syndromes) occurred in 1187 patients (66.5%), but rarely occurred in the absence of other symptoms (n=106, 6.2%). The most common atypical symptoms were anorexia (n=598, 33.5%), weakness (n=519, 23.9%), and delirium (n=449, 25.1%). Dyspnea (adjusted odds ratio [aOR] 2.05, 95% confidence interval [CI] 1.62–2.62), tachycardia (aOR 1.87, 95% CI 1.14–3.04), and delirium (aOR 1.52, 95% CI 1.18–1.96) were independently associated with in-hospital mortality. In a cohort of older adults hospitalized with COVID-19 infection, atypical presentations frequently overlapped with typical symptoms. Further research should be directed at understanding the cause and clinical significance of atypical presentations in older adults.

This 8-week pilot stepped-wedge randomized controlled trial evaluated the MoveStrong program for teaching adults who have frailty/pre-frailty about balance and functional strength training and sufficient protein intake to prevent falls and improve mobility.We recruited individuals aged 60 years and over, with a FRAIL scale score of 1 or higher and at least one chronic condition, who were not currently strength training. The program included 16 exercise physiologist-led hour-long group sessions and two dietitian-led hour-long nutrition sessions. We analyzed secondary outcomes-weight, gait speed, grip strength, physical capacity (fatigue levels), sit-to-stand functioning, dynamic balance, health-related quality of life (HRQoL), physical activity levels and protein intake-using a paired t test and a generalized estimating equation (GEE).Of 44 participants (mean [SD] age 79 [9.82] years), 35 were pre-frail and 9 were frail. At follow-up, participants had significantly improved grip strength (1.63 kg, 95% CI: 0.62 to 2.63); sit-to-stand functioning (2 sit-to-stands, 95% CI: 1 to 3); and dynamic balance (1.68 s, 95% CI: 0.47 to 2.89). There were no significant improvements in gait speed, HRQoL index scores, self-rated health, physical activity levels (aerobic activity and strength training) or protein intake. GEE analysis revealed an interaction between exposure to MoveStrong and gait speed, sit-to-stand functioning, dynamic balance and HRQoL index scores. The total cost to administer the program and purchase equipment was CAD 14 700, equivalent to CAD 377 per participant.Exploratory analyses suggest MoveStrong exercises may improve gait speed, sit-to-stand functioning, dynamic balance and HRQoL index scores in older individuals who are frail and pre-frail.Cet essai pilote randomisé par étapes de huit semaines a permis d’évaluer le programme MoveStrong, qui vise à enseigner aux adultes présentant une fragilité ou une préfragilité un entraînement à l’équilibre et à la force musculaire ainsi qu’un apport suffisant en protéines pour prévenir les chutes et améliorer la mobilité.Nous avons recruté des personnes âgées de 60 ans ou plus, ayant un score de 1 ou plus sur l’échelle FRAIL et au moins une affection chronique et ne faisant pas d’entraînement musculaire. Le programme consistait en 16 séances de groupe d’une heure animées par un physiologiste de l’exercice et 2 séances de nutrition d’une heure animées par une diététiste. Nous avons analysé les résultats secondaires – poids, vitesse de marche, force de préhension, capacité physique (niveau de fatigue), transition assisdebout, équilibre dynamique, qualité de vie liée à la santé (QVLS), niveau d’activité physique et apport en protéines – à l’aide d’un test t d’échantillons appariés et d’une équation d’estimation généralisée (EEG).Sur les 44 participants (âge moyen [É.-T.] : 79 ans [9,82]), 35 étaient préfragiles et 9 étaient fragiles. Au moment du suivi, les participants avaient considérablement amélioré leur force de préhension (1,63 kg; IC à 95 % : 0,62 à 2,63), leur capacité à effectuer des transitions assis-debout (2 transitions assis-debout; IC à 95 % : 1 à 3) et leur équilibre dynamique (1,68 s; IC à 95 % : 0,47 à 2,89). Il n’y a pas eu d’amélioration statistiquement significative de la vitesse de marche, des scores QVLS, de l’autoévaluation de la santé, des niveaux d’activité physique (activité aérobique et entraînement musculaire) ou de l’apport en protéines. L’analyse par EEG a révélé une interaction entre l’exposition à MoveStrong et la vitesse de marche, la capacité à effectuer des transitions assisdebout, l’équilibre dynamique et les scores QVLS. Le coût total de mise en oeuvre du programme et de l’achat d’équipement s’est élevé à 14 700 $ CA, soit 377 $ CA par participant.Les analyses exploratoires indiquent que les exercices MoveStrong améliorent la vitesse de marche, la capacité à effectuer des transitions assisdebout, l’équilibre dynamique et les scores QVLS chez les personnes âgées fragiles et préfragiles.The MoveStrong program teaches older adults who are pre-frail and frail about balance and functional strength training and sufficient protein intake. The program may improve grip strength, sit-to-stand functioning and dynamic balance. The program may be associated with improvements in other outcomes, such as health-related quality of life and gait speed.Le programme MoveStrong apprend aux personnes âgées préfragiles et fragiles à s’entraîner à l’équilibre et à la force musculaire et à consommer suffisamment de protéines. Le programme permet d’améliorer la force de préhension, la capacité à effectuer des transitions assis-debout et l’équilibre dynamique. Le programme contribue aussi à l’améliorations d’autres résultats, comme la qualité de vie liée à la santé et la vitesse de marche.

Background: Summaries of systematic reviews are a reference method for the dissemination of research evidence on the effectiveness of public health interventions beyond the scientific community. Motivated reasoning and cognitive dissonance may interfere with readers’ ability to process the information included in such summaries. Methods: We conducted a web experiment on a panel of university-educated North Americans (N = 259) using a systematic review of the effectiveness of bicycle helmet legislation as a test case. The outcome variables were the perceived tentativeness of review findings and attitude toward bicycle helmet legislation. We manipulated two types of uncertainty: (i) deficient uncertainty (inclusion vs. non-inclusion of information on limitations of the studies included in the review) and (ii) consensus uncertainty (consensual findings showing legislation effectiveness vs. no evidence of effectiveness). We also examined whether reported expertise in helmet legislation and the frequency of wearing a helmet while cycling interact with the experimental factors. Results: None of the experimental manipulations had a main effect on the perceived tentativeness. The presentation of consensual efficacy findings had a positive main effect on the attitude toward the legislation. Self-reported expertise had a significant main effect on the perceived tentativeness, and exposing participants with reported expertise to results showing a lack of evidence of efficacy increased their favorable attitude toward the legislation. Participants’ helmet use was positively associated with their attitude toward the legislation (but not with perceived tentativeness). Helmet use did not interact with the experimental manipulations. Conclusions: Motivated reasoning and cognitive dissonance influence a reader’s ability to process information contained in a systematic review summary.

Background: A previous review of sex, gender, and equity within cardiovascular (CV) medicine, surgery, and science in Canada has revealed parity during medical and graduate school training. The purpose of this study was to explore sex and gendered experiences within the Canadian CV landscape, and their impact on career training and progression. Methods: An environmental scan was conducted of the Canadian CV landscape, which included an equity survey using Qualtrics software. Results: The environmental scan revealed that women remain underrepresented within CV training programs as trainees (12%–30%), program directors (33%), in leadership roles at the divisional level (21%), and in other professional or career-related activities (< 30%). Our analysis also showed improvements of career engagement at these levels of women at over time. The thematic analysis of the equity survey responses (n = 71 respondents; 83% female; 9.7% response rate among female Canadian Cardiovascular Society members) identified the following themes reported within the socio-ecological framework: desire to report inequities vs staying the course (individual level); desire for social support and mentorship and challenges of dual responsibilities (interpersonal level); concerns over exclusionary cliques and desire for respect and opportunity (organizational level); and increasing awareness and actions to overcome institutional barriers and accountability (societal level). Conclusions: Although women face challenges and remain underrepresented in CV medicine, surgery, and science, this study highlights potential opportunities for improving access of female medical, surgical, and research trainees and professionals to specialized cardiovascular training, career advancement, leadership, and research. Résumé: Contexte: Une étude antérieure portant sur le sexe, le genre et l'équité en médecine, chirurgie et sciences cardiovasculaires (CV) au Canada a révélé une parité au cours de la formation médicale et des études supérieures. L'objectif de cette étude était d’évaluer les expériences liées au sexe et au genre dans le paysage canadien du domaine CV, et leur impact sur la formation et la progression de carrière. Méthodes: Une analyse de l'environnement du paysage canadien dans le domaine CV a été réalisée, incluant une étude sur l'équité en utilisant le logiciel Qualtrics. Résultats: L'analyse de l'environnement a révélé que les femmes restent sous-représentées dans les programmes de formation du domaine CV que ce soit en tant que stagiaires (12 à 30 %), directrices de programme (33 %), dans les rôles de direction au niveau divisionnaire (21 %) et dans d'autres activités professionnelles ou associées à la carrière (< 30 %). Notre analyse a également montré une amélioration de l'engagement professionnel des femmes à ces niveaux au fil du temps. L'analyse thématique des réponses à l'enquête sur l'équité (n = 71 répondants; 83 % de femmes ; 9,7 % de taux de réponse parmi les membres féminins de la Société canadienne de cardiologie) a permis de dégager les thèmes suivants au sein du système socioécologique : désir de signaler les inégalités par rapport à la volonté de maintenir cap précis (au niveau individuel); désir de soutien social et de mentorat et défis liés à la double responsabilité (au niveau interpersonnel); préoccupations concernant les cliques exclusives et désir de respect et d’opportunité (au niveau organisationnel); et sensibilisation et actions accrues pour surmonter les obstacles institutionnels et les niveaux de responsabilité (au niveau sociétal). Conclusions: Bien que les femmes soient confrontées à des défis et restent sous-représentées dans les domaines de la médecine, de la chirurgie et des sciences CV, cette étude met en évidence les possibilités d'améliorer l'accès des stagiaires féminines et des professionnelles de la médecine, de la chirurgie et de la recherche à la formation spécialisée en cardiologie, à l'avancement de carrière, au rôle de direction et à la recherche.

Background Antithrombotic drugs decrease stroke risk in patients with atrial fibrillation, but they increase bleeding risk, particularly in older adults at high risk for falls. We aimed to determine the most cost-effective antithrombotic therapy in older adults with atrial fibrillation who are at high risk for falls. Methods We conducted a mathematical modelling study from July 2019 to March 2020 based on the Ontario, Canada, health care system. We derived the base-case age, sex and fall risk distribution from a published cohort of older adults at risk for falls, and the bleeding and stroke risk parameters from an atrial fibrillation trial population. Using a probabilistic microsimulation Markov decision model, we calculated quality-adjusted life years (QALYs), total cost and incremental cost-effectiveness ratios (ICERs) for each of acetylsalicylic acid (ASA), warfarin, apixaban, dabigatran, rivaroxaban and edoxaban. Cost data were adjusted for inflation to 2018 values. The analysis used the Ontario public payer perspective with a lifetime horizon. Results In our model, the most cost-effective antithrombotic therapy for atrial fibrillation in older patients at risk for falls was apixaban, with an ICER of $8517 per QALY gained (5.86 QALYs at $92 056) over ASA. It was a dominant strategy over warfarin and the other antithrombotic agents. There was moderate uncertainty in cost-effectiveness ranking, with apixaban as the preferred choice in 66% of model iterations (given willingness to pay of $50 000 per QALY gained); edoxaban, 30 mg, was preferred in 31% of iterations. Sensitivity analysis across ranges of age, bleeding risk and fall risk still favoured apixaban over the other medications. Interpretation From a public payer perspective, apixaban is the most cost-effective antithrombotic agent in older adults at high risk for falls. Health care funders should implement strategies to encourage use of the most cost-effective medication in this population.

Background Loneliness is common in older adults, and it is associated with unhealthy behaviours, including substance use. We evaluated the association between loneliness and self-reported use of opioids and benzodiazepines in older adults. Methods We used data from the Canadian Community Health Survey’s ‘Healthy Aging’ sub-survey and included adults 65 years or older who administered their own medications. We classified individuals as lonely if they scored 6 or more on the three -item University of California, Los Angeles’s Loneliness Scale. We used multinomial logistic regression models, adjusting for demographics and self-reported comorbidities, to describe the association between loneliness and daily or occasional use of opioids, benzodiazepines and non-opioid analgesics. We also explored the association between loneliness and polypharmacy. Results Our cohort included 15,302 older adults, of whom 2,096 (13.7%) were classified as lonely. Daily use of opioids (4.1%) and benzodiazepines (1.7%) were less common than daily use of non-opioid analgesics (33.9%). Lonely older adults had higher daily use of opioids (odds ratio [OR] 1.61, 1.31-1.98) and benzodiazepines (OR 1.66, 1.21-2.28), but not non-opioid analgesics (OR 1.05, 0.92-1.19). Loneliness was not associated with occasional use of opioids, benzodiazepines or non-opioid analgesics in older adults, but was associated with polypharmacy (OR 1.27, 1.06-1.52). Conclusions Loneliness in older adults is associated with increased daily use of opioids and benzodiazepines. Further research should evaluate patient- and physician-level factors that mediate this association, and develop strategies to mitigate loneliness and its attendant adverse outcomes.

Background The objective of this review was to examine the current guidelines for infection prevention and control (IPAC) of coronavirus disease-19 (COVID-19) or other coronaviruses in adults 60 years or older living in long-term care facilities (LTCF). Methods EMBASE, MEDLINE, Cochrane library, pre-print servers, clinical trial registries, and relevant grey literature sources were searched until July 31, 2020, using database searching and an automated method called Continuous Active Learning® (CAL®). All search results were processed using CAL® to identify the most likely relevant citations that were then screened by a single human reviewer. Full-text screening, data abstraction, and quality appraisal were completed by a single reviewer and verified by a second. Results Nine clinical practice guidelines (CPGs) were included. The most common recommendation in the CPGs was establishing surveillance and monitoring systems followed by mandating the use of PPE; physically distancing or cohorting residents; environmental cleaning and disinfection; promoting hand and respiratory hygiene among residents, staff, and visitors; and providing sick leave compensation for staff. Conclusions Current evidence suggests robust surveillance and monitoring along with support for IPAC initiatives are key to preventing the spread of COVID-19 in LTCF. However, there are significant gaps in the current recommendations especially with regard to the movement of staff between LTCF and their role as possible transmission vectors. Systematic review registration PROSPERO CRD42020181993

Background/objectives To examine the association between hospitalization for a fall-related injury and the co-prescription of a cholinesterase inhibitor (ChEI) among persons with dementia receiving a beta-blocker, and whether this potential drug-drug interaction is modified by frailty. Design Nested case-control study using population-based administrative databases. Setting All nursing homes in Ontario, Canada. Participants Persons with dementia aged 66 and older who received at least one beta-blocker between April 2013 and March 2018 following nursing home admission (n = 19,060). Measurements Cases were persons with dementia with a hospitalization (emergency department visit or acute care admission) for a fall-related injury with concurrent beta-blocker use. Each case (n = 3,038) was matched 1:1 to a control by age (±1 year), sex, cohort entry year, frailty, and history of fall-related injuries. The association between fall-related injury and exposure to a ChEI in the 90 days prior was examined using multivariable conditional logistic regression. Secondary exposures included ChEI type, daily dose, incident versus prevalent use, and use in the prior 30 days. Subgroup analyses considered frailty, age group, sex, and history of hospitalization for fall-related injuries. Results Exposure to a ChEI in the prior 90 days occurred among 947 (31.2%) cases and 940 (30.9%) controls. In multivariable models, no association was found between hospitalization for a fall-related injury and prior exposure to a ChEI in persons with dementia dispensed beta-blockers (adjusted odds ratio = .96, 95% confidence interval = .85-1.08). Findings were consistent across secondary exposures and subgroup analyses. Conclusion Among nursing home residents with dementia receiving beta-blockers, co-prescription of a ChEI was not associated with an increased risk of hospitalization for a fall-related injury. However, we did not assess for its association with falls not leading to hospitalization. This finding could inform clinical guidelines and shared decision making between persons with dementia, caregivers, and clinicians concerning ChEI initiation and/or discontinuation.

Objective To examine the extent, scope, and methodological quality of rehabilitation scoping reviews. Data Sources A comprehensive list of scoping reviews conducted in the broader health field (inception to July 2014), with a further update of that list (up to February 2017) using similar methods, including searching 9 electronic databases. Study Selection Articles were included if they were scoping reviews within rehabilitation. Established review methods were used including (1) a PubMed filter detecting rehabilitation content and (2) title-and-abstract screening by 2 independent reviewers applied sequentially to articles from the existing list of scoping reviews and to the updated search results. Full-text articles were reviewed by 1 reviewer, with discrepancies resolved by another after pilot screening with > 80% agreement. Remaining discrepancies were resolved by external experts. Data Extraction Two independent reviewers used piloted and standardized data extraction forms. Data Synthesis We screened 1823 records, including 992 full texts, to identify 251 rehabilitation-related scoping reviews. Rehabilitation scoping reviews had an exponential yearly increase since 2008 (r2=0.89; P Conclusions The increasing popularity of scoping reviews in rehabilitation has not been met by high standards in methodological quality. To increase the value of rehabilitation scoping reviews, rehabilitation stakeholders need to use existing methodological standards for the conduct, reporting, and appraisal of scoping reviews.

Objective Patient-centered care (PCC) could reduce gender inequities in quality of care. Little is known about how to implement patient-centered care for women (PCCW). We aimed to generate consensus recommendations for achieving PCCW. Methods We used a 2-round Delphi technique. Panelists included 21 women of varied age, ethnicity, education, and urban/rural residence; and 21 health professionals with PCC or women’s health expertise. Panelists rated recommendations, derived from prior research and organized by a 6-domain PCC framework, on a 7-point Likert scale in an online survey. We used summary statistics to report response frequencies and defined consensus as when ≥85% panelists chose 5 to 7. Results The response rate was 100%. In round 1, women and professionals retained 46 (97.9%) and 42 (89.4%) of 47 initial recommendations, respectively. The round 2 survey included 6 recommendations for women and 5 recommendations for professionals (did not achieve consensus in round 1 or were newly suggested). In round 2, women retained 2 of 6 recommendations and professionals retained 3 of 5 recommendations. Overall, 49 recommendations were generated. Both groups agreed on 44 (94.0%) recommendations (13 retained by 100% of both women and clinicians): fostering patient-physician relationship (n = 11), exchanging information (n = 10), responding to emotions (n = 4), managing uncertainty (n = 5), making decisions (n = 8), and enabling patient self-management (n = 6). Conclusion The recommendations represent the range of PCC domains, are based on evidence from primary research, and reflect high concordance between women and professional panelists. They can inform the development of policies, guidelines, programs, and performance measures that foster PCCW.

BACKGROUND: In pandemics, local hospitals need to anticipate a surge in health care needs. We examined the modelled surge because of the coronavirus disease 2019 (COVID-19) pandemic that was used to inform the early hospital-level response against cases as they transpired. METHODS: To estimate hospital-level surge in March and April 2020, we simulated a range of scenarios of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spread in the Greater Toronto Area (GTA), Canada, using the best available data at the time. We applied outputs to hospital-specific data to estimate surge over 6 weeks at 2 hospitals (St. Michael’s Hospital and St. Joseph’s Health Centre). We examined multiple scenarios, wherein the default (R(0) = 2.4) resembled the early trajectory (to Mar. 25, 2020), and compared the default model projections with observed COVID-19 admissions in each hospital from Mar. 25 to May 6, 2020. RESULTS: For the hospitals to remain below non-ICU bed capacity, the default pessimistic scenario required a reduction in non-COVID-19 inpatient care by 38% and 28%, respectively, with St. Michael’s Hospital requiring 40 new ICU beds and St. Joseph’s Health Centre reducing its ICU beds for non-COVID-19 care by 6%. The absolute difference between default-projected and observed census of inpatients with COVID-19 at each hospital was less than 20 from Mar. 25 to Apr. 11; projected and observed cases diverged widely thereafter. Uncertainty in local epidemiological features was more influential than uncertainty in clinical severity. INTERPRETATION: Scenario-based analyses were reliable in estimating short-term cases, but would require frequent re-analyses. Distribution of the city’s surge was expected to vary across hospitals, and community-level strategies were key to mitigating each hospital’s surge.

Background Diabetes is a highly prevalent chronic disease that places a large burden on individuals and health care systems. Models predicting the risk (also called predictive models) of other conditions often compare people with and without diabetes, which is of little to no relevance for people already living with diabetes (called patients). This review aims to identify and synthesize findings from existing predictive models of physical and mental health diabetes-related conditions. Methods We will use the scoping review frameworks developed by the Joanna Briggs Institute and Levac and colleagues. We will perform a comprehensive search for studies from Ovid MEDLINE and Embase databases. Studies involving patients with prediabetes and all types of diabetes will be considered, regardless of age and gender. We will limit the search to studies published between 2000 and 2018. There will be no restriction of studies based on country or publication language. Abstracts, full-text screening, and data extraction will be done independently by two individuals. Data abstraction will be conducted using a standard methodology. We will undertake a narrative synthesis of findings while considering the quality of the selected models according to validated and well-recognized tools and reporting standards. Discussion Predictive models are increasingly being recommended for risk assessment in treatment decision-making and clinical guidelines. This scoping review will provide an overview of existing predictive models of diabetes complications and how to apply them. By presenting people at higher risk of specific complications, this overview may help to enhance shared decision-making and preventive strategies concerning diabetes complications. Our anticipated limitation is potentially missing models because we will not search grey literature.

Background Positive impacts of quality improvement initiatives on health care and services have not been substantial. Knowledge translation (KT) strategies (tools, products and interventions) strive to facilitate the uptake of knowledge thereby the potential to improve care, but there is little guidance on how to develop them. Existing KT guidance or planning tools fall short in operationalizing all aspects of KT practice activities conducted by knowledge users (researchers, clinicians, patients, decision-makers), and most do not consider their variable needs or to deliver recommendations that are most relevant and useful for them. Methods We conducted a 3-phase study. In phase 1, we used several sources to develop a conceptual framework for creating optimized Knowledge-activated Tools (KaT) (consultation with our integrated KT team, the use of existing KT models and frameworks, findings of a systematic review of multimorbidity interventions and a literature review and document analysis on existing KT guidance tools). In phase 2, we invited KT experts to participate in a Delphi study to refine and evaluate the conceptual KaT framework. In phase 3, we administered an online survey to knowledge users (researchers, clinicians, decision-makers, trainees) to evaluate the potential usefulness of an online mock-up version of the KaT framework. Results We developed the conceptual KaT framework, and iteratively refined it with 35 KT experts in a 3-round Delphi study. The final framework represents the blueprint for what is needed to create KT strategies. Feedback from 201 researcher, clinician, decision-maker and trainee knowledge users on the potential need and usefulness of an online, interactive version of KaT indicated that they liked the idea of it (mean score 4.36 on a 5-point Likert scale) and its proposed features (mean score range 4.30–4.79). Conclusions Our findings suggest that mostly Canadian KT experts and knowledge users perceived the KaT framework and the future development of an online, interactive version to be important and needed. We anticipate that the KaT framework will provide clarity for knowledge users about how to identify their KT needs and what activities can address these needs, and to help streamline the process of these activities to facilitate efficient uptake of knowledge.

Background Patient-centered care (PCC) is one approach for ameliorating persistent gendered disparities in health care quality, yet no prior research has studied how to achieve patient-centred care for women (PCCW). The purpose of this study was to explore how clinicians deliver PCCW, challenges they face, and the strategies they suggest are needed to support PCCW. Methods We conducted semi-structured qualitative interviews (25–60 min) with clinicians. Thirty-seven clinicians representing 7 specialties (family physicians, cardiologists, cardiac surgeons, obstetricians/gynecologist, psychiatrists, nurses, social workers) who manage depression (n = 16), cardiovascular disease (n = 11) and contraceptive counseling (n = 10), conditions that affect women across the lifespan. We used constant comparative analysis to inductively analyze transcripts, mapped themes to a 6-domain PCC conceptual framework to interpret findings, and complied with qualitative research reporting standards. Results Clinicians said that women don’t always communicate their health concerns and physicians sometimes disregard women’s health concerns, warranting unique PCC approaches.. Clinicians described 39 approaches they used to tailor PCC for women across 6 PCC domains: foster a healing relationship, exchange information, address emotions/concerns, manage uncertainty, make decisions, and enable self-management. Additional conditions that facilitated PCCW were: privacy, access to female clinicians, accommodating children through onsite facilities, and flexible appointment formats and schedules. Clinicians suggested 7 strategies needed to address barriers of PCCW they identified at the: patient-level (online appointments, transport to health services, use of patient partners to plan and/or deliver services), clinician-level (medical training and continuing professional development in PCC and women’s health), and system-level (funding models for longer appointment times, multidisciplinary teamwork to address all PCC domains). Conclusions Our research revealed numerous strategies that clinicians can use to optimize PCCW, and health care managers and policy-makers can use to support PCCW through programs and policies. Identified strategies addressed all domains of an established PCC conceptual framework. Future research should evaluate the implementation and impact of these strategies on relevant outcomes such as perceived PCC among women and associated clinical outcomes to prepare for broad scale-up.

Background Application of knowledge translation (KT) theories, models, and frameworks (TMFs) is one method for successfully incorporating evidence into clinical care. However, there are multiple KT TMFs and little guidance on which to select. This study sought to identify and describe available full-spectrum KT TMFs to subsequently guide users. Methods A scoping review was completed. Articles were identified through searches within electronic databases, previous reviews, grey literature, and consultation with KT experts. Search terms included combinations of KT terms and theory-related terms. Included citations had to describe full-spectrum KT TMFs that had been applied or tested. Titles/abstracts and full-text articles were screened independently by two investigators. Each KT TMF was described by its characteristics including name, context, key components, how it was used, primary target audience, levels of use, and study outcomes. Each KT TMF was also categorized into theoretical approaches as process models, determinant frameworks, classic theories, implementation theories, and evaluation frameworks. Within each category, KT TMFs were compared and contrasted to identify similarities and unique characteristics. Results Electronic searches yielded 7160 citations. Additional citations were identified from previous reviews (n = 41) and bibliographies of included full-text articles (n = 6). Thirty-six citations describing 36 full-spectrum were identified. In 24 KT TMFs, the primary target audience was multi-level including patients/public, professionals, organizational, and financial/regulatory. The majority of the KT TMFs were used within public health, followed by research (organizational, translation, health), or in multiple contexts. Twenty-six could be used at the individual, organization, or policy levels, five at the individual/organization levels, three at the individual level only, and two at the organizational/policy level. Categorization of the KT TMFs resulted in 18 process models, eight classic theories, three determinant frameworks, three evaluation frameworks, and four that fit more than one category. There were no KT TMFs that fit the implementation theory category. Within each category, similarities and unique characteristics emerged through comparison. Conclusions A systematic compilation of existing full-spectrum KT TMFs, categorization into different approaches, and comparison has been provided in a user-friendly way. This list provides options for users to select from when designing KT projects and interventions. Trial registration A protocol outlining the methodology of this scoping review was developed and registered with PROSPERO (CRD42018088564).

ObjectiveTo examine the comparative efficacy and safety of cognitive enhancers by patient characteristics for managing Alzheimer’s dementia (AD).DesignSystematic review and individual patient data (IPD) network meta-analysis (NMA) based on our previously published systematic review and aggregate data NMA.Data sourcesMEDLINE, Embase, Cochrane Methodology Register, CINAHL, AgeLine and Cochrane Central Register of Controlled Trials up to March 2016.Participants80 randomised controlled trials (RCTs) including 21 138 adults with AD, and 12 RCTs with IPD including 6906 patients.InterventionsCognitive enhancers (donepezil, rivastigmine, galantamine and memantine) alone or in any combination against other cognitive enhancers or placebo.Data extraction and synthesisWe requested IPD from authors, sponsors and data sharing platforms. When IPD were not available, we used aggregate data. We appraised study quality with the Cochrane risk-of-bias. We conducted a two-stage random-effects IPD-NMA, and assessed their findings using CINeMA (Confidence in Network Meta-Analysis).Primary and secondary outcomesWe included trials assessing cognition with the Mini-Mental State Examination (MMSE), and adverse events.ResultsOur IPD-NMA compared nine treatments (including placebo). Donepezil (mean difference (MD)=1.41, 95% CI: 0.51 to 2.32) and donepezil +memantine (MD=2.57, 95% CI: 0.07 to 5.07) improved MMSE score (56 RCTs, 11 619 participants; CINeMA score: moderate) compared with placebo. According to P-score, oral rivastigmine (OR=1.26, 95% CI: 0.82 to 1.94, P-score=16%) and donepezil (OR=1.08, 95% CI: 0.87 to 1.35, P-score=30%) had the least favourable safety profile, but none of the estimated treatment effects were sufficiently precise when compared with placebo (45 RCTs, 15 649 patients; CINeMA score: moderate to high). For moderate-to-severe impairment, donepezil, memantine and their combination performed best, but for mild-to-moderate impairment donepezil and transdermal rivastigmine ranked best. Adjusting for MMSE baseline differences, oral rivastigmine and galantamine improved MMSE score, whereas when adjusting for comorbidities only oral rivastigmine was effective.ConclusionsThe choice among the different cognitive enhancers may depend on patient’s characteristics. The MDs of all cognitive enhancer regimens except for single-agent oral rivastigmine, galantamine and memantine, against placebo were clinically important for cognition (MD larger than 1.40 MMSE points), but results were quite imprecise. However, two-thirds of the published RCTs were associated with high risk of bias for incomplete outcome data, and IPD were only available for 15% of the included RCTs.PROSPERO registration numberCRD42015023507.

Background There is an urgent need to understand the determinants (i.e., barriers and facilitators) of de-implementation. The purpose of this study was to develop a comprehensive list of determinants of the de-implementation of low-value care from the published literature and to compare this list to determinants identified by a group of stakeholders with lived experience with de-implementation. Methods This was a two-phase multi-method study. First, a systematic review examined published barriers and facilitators to de-implementation. Articles were identified through searches within electronic databases, reference lists and the grey literature. Citations were screened independently and in duplicate and included if they were: 1) written in English; and 2) described a barrier or facilitator to de-implementation of any clinical practice in adults (age ≥ 18 years). ‘Raw text’ determinants cited within included articles were extracted and synthesized into a list of representative determinants using conventional content analysis. Second, semi-structured interviews were conducted with decision-makers (unit managers and medical directors) and healthcare professionals working in adult critical care medicine to explore the overlap between the determinants found in the systematic review to those experienced in critical care medicine. Thematic content analysis was used to identify key themes emerging from the interviews. Results In the systematic review, reviewers included 172 articles from 35,368 unique citations. From 437 raw text barriers and 280 raw text facilitators, content analysis produced 29 distinct barriers and 24 distinct facilitators to de-implementation. Distinct barriers commonly cited within raw text included ‘lack of credible evidence to support de-implementation’ (n = 90, 21%), ‘entrenched norms and clinicians’ resistance to change (n = 43, 21%), and ‘patient demands and preferences’ (n = 28, 6%). Distinct facilitators commonly cited within raw text included ‘stakeholder collaboration and communication’ (n = 43, 15%), and ‘availability of credible evidence’ (n = 33, 12%). From stakeholder interviews, 23 of 29 distinct barriers and 20 of 24 distinct facilitators from the systematic review were cited as key themes relevant to de-implementation in critical care. Conclusions The availability and quality of evidence that identifies a clinical practice as low-value, as well as healthcare professional willingness to change, and stakeholder collaboration are common and important determinants of de-implementation and may serve as targets for future de-implementation initiatives. Trial registration The systematic review was registered in PROSPERO CRD42016050234.

ObjectivesThe objective of our systematic review was to identify the effective interventions to prevent or mitigate social isolation and/or loneliness in older adults who experienced a fall.DesignSystematic review.Data sourcesMEDLINE, Embase, the Cochrane Central Register of Controlled Trials and Ageline were searched (from inception to February 2020).MethodsStudies were eligible if they described any intervention for social isolation in older adults living in a community setting who experienced a fall, and reported outcomes related to social isolation or loneliness.Two independent reviewers screened citations, abstracted data and appraised risk of bias using the Cochrane risk of bias tool. The results were summarised descriptively.ResultsAfter screening 4069 citations and 55 full-text articles, four studies were included. The four studies varied in study design, including a randomised controlled trial, non-randomised controlled trial, an uncontrolled before-after study and a quasiexperimental study. Interventions varied widely, and included singing in a choir, a patient-centred, interprofessional primary care team-based approach, a multifactorial assessment targeting fall risk, appropriate medication use, loneliness and frailty, and a community-based care model that included comprehensive assessments and multilevel care coordination. Outcome measures varied and included scales for loneliness, social isolation, social interaction, social networks and social satisfaction. Mixed results were found, with three studies reporting no differences in social isolation or loneliness after the intervention. Only the multifactorial assessment intervention demonstrated a small positive effect on loneliness compared with the control group after adjustment (B=−0.18, 95% CI −0.35 to −0.02).ConclusionsFew studies examined the interventions for social isolation or loneliness in older adults who experienced a fall. More research is warranted in this area.PROSPERO registration numberCRD42020198487.

The omicron variant of concern (VOC) of SARS-CoV-2 was first reported in November 2021 in Botswana and South Africa. Omicron has evolved multiple mutations within the spike protein and the receptor binding domain (RBD), raising concerns of increased antibody evasion. Here, we isolated infectious omicron from a clinical specimen obtained in Canada. The neutralizing activity of sera from 65 coronavirus disease (COVID-19) vaccine recipients and convalescent individuals against clinical isolates of ancestral SARS-CoV-2, beta, delta, and omicron VOCs was assessed. Convalescent sera from unvaccinated individuals infected by the ancestral virus during the first wave of COVID-19 in Canada (July, 2020) demonstrated reduced neutralization against beta and omicron VOCs. Convalescent sera from unvaccinated individuals infected by the delta variant (May-June, 2021) neutralized omicron to significantly lower levels compared to the delta variant. Sera from individuals that received three doses of the Pfizer or Moderna vaccines demonstrated reduced neutralization of the omicron variant relative to ancestral SARS-CoV-2. Sera from individuals that were naturally infected with ancestral SARS-CoV-2 and subsequently received two doses of the Pfizer vaccine induced significantly higher neutralizing antibody levels against ancestral virus and all VOCs. Importantly, infection alone, either with ancestral SARS-CoV-2 or the delta variant was not sufficient to induce high neutralizing antibody titers against omicron. This data will inform current booster vaccination strategies, and we highlight the need for additional studies to identify longevity of immunity against SARS-CoV-2 and optimal neutralizing antibody levels that are necessary to prevent infection and/or severe COVID-19.

ObjectivesTo identify ML tools in hospital settings and how they were implemented to inform decision-making for patient care through a scoping review. We investigated the following research questions: What ML interventions have been used to inform decision-making for patient care in hospital settings? What strategies have been used to implement these ML interventions?DesignA scoping review was undertaken. MEDLINE, Embase, Cochrane Central Register of Controlled Trials (CENTRAL) and the Cochrane Database of Systematic Reviews (CDSR) were searched from 2009 until June 2021. Two reviewers screened titles and abstracts, full-text articles, and charted data independently. Conflicts were resolved by another reviewer. Data were summarised descriptively using simple content analysis.SettingHospital setting.ParticipantAny type of clinician caring for any type of patient.InterventionMachine learning tools used by clinicians to inform decision-making for patient care, such as AI-based computerised decision support systems or “‘model-based’” decision support systems.Primary and secondary outcome measuresPatient and study characteristics, as well as intervention characteristics including the type of machine learning tool, implementation strategies, target population. Equity issues were examined with PROGRESS-PLUS criteria.ResultsAfter screening 17 386 citations and 3474 full-text articles, 20 unique studies and 1 companion report were included. The included articles totalled 82 656 patients and 915 clinicians. Seven studies reported gender and four studies reported PROGRESS-PLUS criteria (race, health insurance, rural/urban). Common implementation strategies for the tools were clinician reminders that integrated ML predictions (44.4%), facilitated relay of clinical information (17.8%) and staff education (15.6%). Common barriers to successful implementation of ML tools were time (11.1%) and reliability (11.1%), and common facilitators were time/efficiency (13.6%) and perceived usefulness (13.6%).ConclusionsWe found limited evidence related to the implementation of ML tools to assist clinicians with patient healthcare decisions in hospital settings. Future research should examine other approaches to integrating ML into hospital clinician decisions related to patient care, and report on PROGRESS-PLUS items.FundingCanadian Institutes of Health Research (CIHR) Foundation grant awarded to SES and the CIHR Strategy for Patient Oriented-Research Initiative (GSR-154442).Scoping review registrationhttps://osf.io/e2mna.

Ensuring a representative workforce is a matter of equity and social justice and has implications for patient care and population health. We examined the relationship of the binary gender identity and race of physicians who felt comfortable to self-identify, with workplace experiences and career satisfaction in academic medicine.The outcome of interest of a cross-sectional survey of full-time clinical faculty members within the Department of Medicine, University of Toronto, was physician's self-reported career satisfaction. Using logistic regression, we examined relationships of binary gender identity (female/male) and race [under-represented minority (URM) versus over-represented in medicine (ORM)] to: workplace experiences (respectful interactions, perception of having to work harder, exclusion from social networks, witnessing/experiencing unprofessionalism, and confidence in taking action to address incivility without reprisal); and career satisfaction, controlling for age, rank, protected time, and workplace experiences.Female gender and URM status were associated with younger age, lower rank, and less positive workplace experiences. 132 respondents (44.4%) strongly agreed they had career satisfaction. Compared with ORM men, career satisfaction was significantly lower for URM and ORM female physicians (OR 0.30, 95% CI 0.14-0.65, and 0.48, 95% CI 0.27-0.85, respectively) and non-significantly lower for URM male physicians (OR 0.62, 95% CI 0.32-1.19). Adjustment for academic rank and workplace experiences fully attenuated these relationships.URM female academic physicians had lower career satisfaction than their ORM male counterparts, largely explained by systematic differences in workplace experiences, particularly perceptions of exclusion from social networks and having to work harder to be perceived as legitimate scholars. This suggests a role for institutions and leaders to build inclusive, anti-racist, and anti-oppressive cultures to support the flourishing of all faculty.

Systematic reviews with network meta-analysis that ignore potential dose effects could limit the applicability and validity of review findings. This article aims to help content experts (eg, clinicians), methodologists, and statisticians better understand how to incorporate dose effects in network meta-analysis. Three models are described that make different clinical and statistical assumptions about how to model dose effects. This article also illustrates the importance of dose effects in understanding the potential risk of harm in people with dementia from cerebrovascular events associated with atypical antipsychotic drug use (quetiapine, olanzapine, and risperidone) and the potential risk of harm in people with nausea and headache associated with cholinesterase inhibitor use (donepezil, galantamine, and rivastigmine). Finally, important considerations when choosing between different network meta-analysis models incorporating dose effects are discussed.

The waves of COVID-19 infections in Ontario, Canada, were marked by differences in patient characteristics and treatment. Our objectives were to (i) describe patient characteristics, treatment, and outcomes of hospitalized older adults with COVID-19 between waves 1, 2, and 3, (ii) determine if there was an improvement in in-hospital mortality in waves 2 and 3 after adjusting for covariates.This retrospective cohort study was done in five acute care hospitals in Toronto, Ontario. Consecutive hospitalized older adults aged ≥65 years with confirmed COVID-19 infection were included. Wave 1 extended from March 11 to July 31, 2020, wave 2 from August 1, 2020 to February 20, 2021, and wave 3 from February 21 to June 30, 2021. Patient characteristics and outcomes were abstracted from charts. A logistic regression model was used to determine the association between COVID-19 and in-hospital mortality in waves 2 and 3 compared with wave 1.Of the 1671 patients admitted to acute care, 297 (17.8%) were admitted in wave 1, 751 (44.9%) in wave 2, and 623 (37.3%) in wave 3. The median age of our cohort was 77.0 years (interquartile range: 71.0-85.0) and 775 (46.4%) were female. The prevalence of frailty declined in progressive waves. The use of dexamethasone, remdesivir, and tocilizumab was significantly higher in waves 2 and 3 compared with wave 1. In the unadjusted analysis, in-hospital mortality was unchanged between waves 1 and 2, but it was lower in wave 3 (18.3% vs. 27.4% in wave 1). After adjustment, in-hospital mortality was unchanged in waves 2 and 3 compared with wave 1.In-hospital mortality in hospitalized older adults with COVID-19 was similar between waves 1 and 3. Further research should be done to determine if COVID-19 therapies have similar benefits for older adults compared with younger adults.