45 results on '"Quan, Hude"'
Search Results
2. Additional file 1 of Uptake of pediatric patient-reported outcome and experience measures and challenges associated with their implementation in Alberta: a mixed-methods study
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Bele, Sumedh, Rabi, Sarah, Zhang, Muning, Ahmed, Sadia, Paolucci, Elizabeth Oddone, Johnson, David W., Quan, Hude, and Santana, Maria J.
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Additional file 1: Appendix 1. Quantitative survey to collect data on the current use of pediatric PROMs and PREMs in Alberta. Appendix 2. The interview guide to collect qualitative data on the use of pediatric PROMs and PREMs in Albertaand the challenges associated with their implementation.
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- 2023
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3. Additional file 3 of Field testing a new ICD coding system: methods and early experiences with ICD-11 Beta Version 2018
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Eastwood, Cathy A., Southern, Danielle A., Khair, Shahreen, Doktorchik, Chelsea, Cullen, Denise, Ghali, William A., and Quan, Hude
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Additional file 3. Comparison between ICD-10-CA and ICD-11 Coding Structure
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- 2022
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4. Additional file 1 of Field testing a new ICD coding system: methods and early experiences with ICD-11 Beta Version 2018
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Eastwood, Cathy A., Southern, Danielle A., Khair, Shahreen, Doktorchik, Chelsea, Cullen, Denise, Ghali, William A., and Quan, Hude
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Additional file 1. Chart review conditions for data collection
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- 2022
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5. Additional file 2 of Field testing a new ICD coding system: methods and early experiences with ICD-11 Beta Version 2018
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Eastwood, Cathy A., Southern, Danielle A., Khair, Shahreen, Doktorchik, Chelsea, Cullen, Denise, Ghali, William A., and Quan, Hude
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Additional file 2. Data Dictionary for ICD-11 Field Trial
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- 2022
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6. Additional file 4 of Field testing a new ICD coding system: methods and early experiences with ICD-11 Beta Version 2018
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Eastwood, Cathy A., Southern, Danielle A., Khair, Shahreen, Doktorchik, Chelsea, Cullen, Denise, Ghali, William A., and Quan, Hude
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Additional file 4. Examples of changes made to ICD-11
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- 2022
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7. Additional file 1 of Patient-reported outcome measures in pediatric asthma care: using theoretical domains framework to explore healthcare providers’ perceptions
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Bele, Sumedh, Rabi, Sarah, Zhang, Muning, Oddone Paolucci, Elizabeth, Johnson, David W., Quan, Hude, and Santana, Maria J.
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Additional file 1. Appendix 1: Interview Guide.
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- 2022
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8. Additional file 1 of Validity of administrative data in recording sepsis: a systematic review
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Jolley, Rachel J, Sawka, Keri Jo, Yergens, Dean W, Quan, Hude, Jetté, Nathalie, and Doig, Christopher J
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Search strategy terms used in Ovid, MEDLINE and Embase databases.
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- 2021
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9. Additional file 2 of Assessing record linkage between health care and Vital Statistics databases using deterministic methods
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Li, Bing, Quan, Hude, Fong, Andrew, and Lu, Mingshan
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Data_FILES - Abstract
Authors’ original file for figure 2
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- 2021
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10. Additional file 1 of Location of residence associated with the likelihood of patient visit to the preoperative assessment clinic
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Seidel, Judy E, Beck, Cynthia A, Pocobelli, Gaia, Lemaire, Jane B, Bugar, Jennifer M, Quan, Hude, and Ghali, William A
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Data_FILES - Abstract
Authors’ original file for figure 1
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- 2021
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11. sj-pdf-1-cjk-10.1177_20543581211029389 – Supplemental material for Perioperative Outcomes Following Kidney-Pancreas Transplantation in Alberta, Canada: Research Letter
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Fox, Danielle E., Quinn, Robert R., Ronksley, Paul E., Harrison, Tyrone G., Quan, Hude, Bigam, David, Shapiro, A. M. James, Jeong, Rachel, and Lam, Ngan N.
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education ,Medicine ,humanities - Abstract
Supplemental material, sj-pdf-1-cjk-10.1177_20543581211029389 for Perioperative Outcomes Following Kidney-Pancreas Transplantation in Alberta, Canada: Research Letter by Danielle E. Fox, Robert R. Quinn, Paul E. Ronksley, Tyrone G. Harrison, Hude Quan, David Bigam, A. M. James Shapiro, Rachel Jeong and Ngan N. Lam in Canadian Journal of Kidney Health and Disease
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- 2021
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12. Additional file 1 of Assessing record linkage between health care and Vital Statistics databases using deterministic methods
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Li, Bing, Quan, Hude, Fong, Andrew, and Lu, Mingshan
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Data_FILES - Abstract
Authors’ original file for figure 1
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- 2021
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13. ICD-11 for quality and safety: overview of the who quality and safety topic advisory group
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Ghali, William A., Pincus, Harold A., Southern, Danielle A., Brien, Susan E., Romano, Patrick S., Burnand, Bernard, Drösler, Saskia E., Sundararajan, Vijaya, Moskal, Lori, Forster, Alan J., Gurevich, Yana, Quan, Hude, Colin, Cyrille, Munier, William B., Harrison, James, Spaeth-Rublee, Brigitta, Kostanjsek, Nenad, and Üstün, T. Bedirhan
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This paper outlines the approach that the WHO's Family of International Classifications (WHO-FIC) network is undertaking to create ICD-11. We also outline the more focused work of the Quality and Safety Topic Advisory Group, whose activities include the following: (i) cataloguing existing ICD-9 and ICD-10 quality and safety indicators; (ii) reviewing ICD morbidity coding rules for main condition, diagnosis timing, numbers of diagnosis fields and diagnosis clustering; (iii) substantial restructuring of the health-care related injury concepts coded in the ICD-10 chapters 19/20, (iv) mapping of ICD-11 quality and safety concepts to the information model of the WHO's International Classification for Patient Safety and the AHRQ Common Formats; (v) the review of vertical chapter content in all chapters of the ICD-11 beta version and (vi) downstream field testing of ICD-11 prior to its official 2015 release. The transition from ICD-10 to ICD-11 promises to produce an enhanced classification that will have better potential to capture important concepts relevant to measuring health system safety and quality—an important use case for the classification
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- 2017
14. Barriers to high quality coding of hospital chart information to administrative data: A qualitative study
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Tang, Karen, Lucyk, Kelsey, and Quan, Hude
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lcsh:HB848-3697 ,lcsh:Demography. Population. Vital events ,Article - Abstract
Objectives Administrative data are widely used in research, health policy, and the evaluation of health service delivery. We undertook a qualitative study to explore the barriers to high quality coding of chart information to administrative data, at the level of coders in Canada. Approach Our study design is qualitative. We recruited professional medical chart coders and data users working across Alberta, Canada, using a multimodal recruitment strategy. We conducted an in-depth, semi-structured interview with each participant. All interviews were audio-recorded and transcribed. We conducted thematic analysis (e.g., line-by-line open coding) of interview transcripts. Codes were then collated into themes and compared across our dataset to ensure accurate interpretations of the data. The study team met to discuss, modify, and interpret emergent themes in the context of the barriers to coding administrative data. Results We recruited 28 coding specialists. In general, coders had high job satisfaction and sense of collegiality, as well as sufficient resources to address their coding questions. They believed themselves to be adequately trained and consistently put in the extra effort when searching charts to find additional information that accurately reflected the patient journey. Barriers to high quality coding from the coder perspective included: 1) Incomplete and inaccurate information in physician progress notes and discharge summaries; 2) Difficulty navigating a complex hybrid of paper and electronic medical records; 3) Focus on productivity rather than quality by the employer, which at times resulted in inconsistent instructions for coding secondary diagnoses and discordant expectations between the employer and the coders’ professional standards. Conclusion Future interventions to improve the quality of administrative data should focus on physician education of necessary components in charting, evaluation of electronic medical records from the perspectives of those who play a key role in abstracting data, and evaluation of productivity guidelines for coders and their effects on data quality.
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- 2017
15. Canadian data sources on ethnic classifications: Contemporary and historical developments in heterogeneity
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Lucyk, Kelsey, Tang, Karen, and Quan, Hude
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lcsh:HB848-3697 ,lcsh:Demography. Population. Vital events ,Article - Abstract
Objective A thorough understanding of the health status of Canadians must take into account their ethnicity, given the genetic and social effects of race and ethnicity on health. Our objective is to describe Canadian data sources that collect ethnicity data and the degree of granularity that exists for ethnic classifications within these sources. We contextualize changes to the collection of ethnic data by considering their historical, social, and political circumstances. Approach Our methods are informed by environmental scan and history methodology. We searched publicly available government documents, peer-reviewed literature, and contacted key informants to gain a comprehensive understanding of the Canadian sources available for collecting nationally representative ethnicity data. Two investigators, using qualitative content analysis, analyzed these sources independently. We extracted information form sources relating to the ethnic classifications (e.g., race, ethnic origins, colour, ancestry) and constructed a historical timeline of key changes. We mapped these to Canada’s changing social and political landscape and drew on contemporary literature to consider the implications of these changes for population health. The study team met to discuss findings, interpretations, and themes that emerged from these sources. Results There are four main sources of ethnicity data in Canada used for health research: 1) Provincial health insurance registries, 2) Canadian Health Measures Survey, 3) Canadian Community Health Survey, 4) Census. Of these, ethnicity data are most limited in the provincial health insurance registries, flagging only Aboriginal status. The other three data sources are nationally administered, with all asking individuals to select, out of 11 categories, self-identified racial or ethnic groups. Historically, Canada’s changing policies on multiculturalism and immigration have influenced the collection of ethnic data to become more inclusive and granular. Important periods include early attempts at nation-building during the late 19th century, social changes post-WWII and the introduction of multiculturalism into federal policy, and present-day efforts in ethnic classifications for research purposes and preserving cultural diversity. Conclusions There is a need for greater granularity in ethnic classifications to reflect the diversity of the Canadian population. Consideration should be made to capture ethnicity as a social, cultural, and historical concept concept, especially in large data sources that influence health decision-making, such as the census. For example, questions on ethnic classification may consider incorporating questions about sense of belonging with the identified ethnic ancestry, rather than relying solely on reported ethnic origin and race.
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- 2017
16. Discharge Communication and Patient Involvement are Associated with Unplanned Hospital Readmissions: Results from a Validated Hospital Experience Survey
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Kemp, Kyle, Santana, Maria, Jolley, Rachel, Southern, Danielle, and Quan, Hude
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lcsh:HB848-3697 ,lcsh:Demography. Population. Vital events ,Article - Abstract
Objectives Unplanned hospital readmissions are an indicator of quality of care, and are associated with significant costs to healthcare systems. Previous research has shown that poor communication and discharge experiences are associated with higher readmission rates. This, however, has only been examined in the short-term, and in many instances, at the hospital-level. The purpose of the study was to examine the relationship between aspects of inpatient communication and discharge instructions and unplanned readmissions at the individual-level up to one-year post-discharge. Approach The Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) telephone survey was completed by patients within 6 weeks of hospital discharge in Alberta, Canada. Survey data were linked to corresponding inpatient records using personal health number, discharge date, and facility codes. Unplanned readmissions (yes vs. no; all causes) from 43 to 365 days post-hospital discharge comprised the outcome variable. Independent variables included selected demographic characteristics, clinical variables, and five survey questions: a) patient involvement in their care decisions, b) receiving written information at discharge, c) understanding the purpose of taking medications, d) understanding responsibility for one’s health, and e) discussing help needed when returning home. Multivariate logistic regression was used to examine each question in the presence of the other predictors. Odds ratios and 95% confidence intervals were calculated. Results From April 2011 to March 2014, 24,868 patients completed a survey which was successfully linked to the corresponding inpatient record. The cohort had a mean age of 52.8±19.8 years of age (range=18-100), and was predominantly female (65.4%). 18.6% of patients (n=4,620) experienced an unplanned hospital readmission within 43 to 365 days post-discharge. Patients who felt that they were not involved in their care decisions were more likely to be readmitted (OR=1.79; 95%CI: 1.59-2.01), as were patients who did not receive written information at discharge (OR=1.96; 95%CI: 1.83-2.11). Odds of unplanned readmissions did not differ according to understanding of medications (OR=1.08; 95%CI: 0.90-1.30), understanding responsibility for one’s health (OR=1.02; 95%CI: 0.86-1.20), or discussion of help needed when returning home (OR=1.03; 95%CI: 0.93-1.14). Conclusion Our results demonstrate that a lack of patient involvement in their care and not receiving written information at discharge is associated with increased unplanned readmission rate up to one-year post-discharge. This present study provides an example of how patient-reported measures may be linked to individual-level administrative data to drive healthcare improvements. Future research examining patient-reported hospital experience and other health system measures is warranted.
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- 2017
17. Evaluating the Completness of Physician Billing Claims: A Proof-of-Concept Study
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Lix, Lisa, Kuwornu, John Paul, Kephart, George, Sikdar, Khokan, Smith, Mark, Kroeker, Kristine, and Quan, Hude
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lcsh:HB848-3697 ,lcsh:Demography. Population. Vital events ,Article ,health care economics and organizations - Abstract
Objectives An increasing number of physicians are remunerated by alternative forms of payment, instead of conventional fee-for-service (FFS) payments. Changes in physician remuneration methods can to influence the completeness of physician billing claims databases, because physicians on alternative payments may not consistently complete billing records. However, there is no established technique to estimate the magnitude of data loss. This proof-of-concept study estimated completeness of physician claims by comparing them with prescription drug records. We applied the method to estimate completeness of non-fee-for-service (NFFS) and FFS physician claims data over time in Manitoba, Canada. Approach Our method uses information on the date of patient initiation of a new prescription medication, payment method of the prescribing physician, and presence/absence of a physician billing claim prior to the medication initiation date. A billing claim within 7 days of the medication initiation date was defined as a captured claim; if there was no claim in this observation window, it was classified as missed. Our method was applied to annual patient cohorts who initiated a common prescription medication (i.e., anti-hypertensives) between fiscal years 1998/99 and 2012/13. A sensitivity analysis used a 21-day observation window to identify captured/missing claims. Multivariable hierarchical logistic regression models tested patient and prescriber characteristics associated with missing claims. Results The cohort consisted of 274, 462 individuals with a new anti-hypertensive prescription medication. A total of 9.2% of the cohort had a NFFS prescribing physician in 1998/99; this increased to 20.2% in 2012/13 (linear trend p-value < .0001). The percentage of NFFS prescribers almost doubled, from 10.0% to 17.8%. The percentage of the annual cohorts with a FFS prescribing physician and a missing claim remained close to 13.0%. However, the percentage of the annual cohorts with a NFFS prescribing physician and a missing claim increased from 15.6% to 23.3% (linear trend p-value < .0001), and was always higher than the FFS percentage. Patient age, sex, and comorbidity and physician specialty and practice location were associated with the odds of a missing claim. Conclusion The percentage of missing claims was higher for patients with NFFS than FFS prescribing physicians, demonstrating the impact of physician remuneration on database completeness. The trend of greater data loss in later than earlier years suggests that completeness of physician billing claims data may be decreasing. Our method can be applied across jurisdictions to compare the impact of physician payment methods on data quality.
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- 2017
18. Influence of Using Different Databases and ‘Look Back’ Intervals to Define Comorbidity Profiles for Patients with Newly Diagnosed Hypertension: Implications for Health Services Researchers
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Chen, Guanmin, Lix, Lisa, Tu, Karen, Hemmelgarn, Brenda R., Campbell, Norm R. C., McAlister, Finlay A., and Quan, Hude
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Male ,Canada ,Time Factors ,Medical Doctors ,Patients ,Databases, Factual ,Endocrine Disorders ,Health Care Providers ,Blood Pressure ,Gastroenterology and Hepatology ,Comorbidity ,Cardiovascular Medicine ,Vascular Medicine ,Geographical locations ,Alberta ,Endocrinology ,Physicians ,Outpatients ,Medicine and Health Sciences ,Diabetes Mellitus ,Humans ,Aged ,Retrospective Studies ,Inpatients ,Liver Diseases ,Research ,Health Services ,Middle Aged ,Patient Discharge ,Health Care ,Professions ,Cardiovascular Diseases ,Metabolic Disorders ,People and Places ,Hypertension ,North America ,Population Groupings ,Female ,Medical Informatics ,Research Article - Abstract
Objective To determine the data sources and ‘look back’ intervals to define comorbidities. Data Sources Hospital discharge abstracts database (DAD), physician claims, population registry and death registry from April 1, 1994 to March 31, 2010 in Alberta, Canada. Study Design Newly-diagnosed hypertension cases from 1997 to 2008 fiscal years were identified and followed up to 12 years. We defined comorbidities using data sources and duration of retrospective observation (6 months, 1 year, 2 years, and 3 years). The C-statistics for logistic regression and concordance index (CI) for Cox model of mortality and cardiovascular disease hospitalization were used to evaluate discrimination performance for each approach of defining comorbidities. Principal Findings The comorbidities prevalence became higher with a longer duration. Using DAD alone underestimated the prevalence by about 75%, compared to using both DAD and physician claims. The C-statistic and CI were highest when both DAD and physician claims were used, and model performance improved when observation duration increased from 6 months to one year or longer. Conclusion The comorbidities prevalence is greatly impacted by the data source and duration of retrospective observation. A combination of DAD and physicians claims with at least one year observation duration improves predictions for cardiovascular disease and one-year mortality outcome model performance.
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- 2016
19. Applications for detection of acute kidney injury using electronic medical records and clinical information systems: Workgroup statements from the 15th ADQI Consensus Conference
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James, Matthew T., Hobson, Charles E., Darmon, Michael, Mohan, Sumit, Hudson, Darren, Goldstein, Stuart L., Ronco, Claudio, Kellum, John A., Bagshaw, Sean M., Basu, Rajit, Bihorac, Azra, Chawla, Lakhmir S., Noel Gibney, R. T., Hoste, Eric, Hsu, Raymond K., Kane-Gill, Sandra L., Kashani, Kianoush, Kramer, Andrew A., Mehta, Ravindra, Quan, Hude, Shaw, Andrew, Selby, Nicholas, Siew, Edward, Sutherland, Scott M., Perry Wilson, F., and Wunsch, Hannah
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Detection ,Nephrology ,Clinical decision support ,Clinical informatics ,Acute kidney injury - Published
- 2016
20. Association between chronic conditions and perceived unmet health care needs
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Ronksley, Paul E., Sanmartin, Claudia, Quan, Hude, Ravani, Pietro, Marcello Tonelli, Manns, Braden, and Hemmelgarn, Brenda R.
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Adult ,Aged, 80 and over ,Male ,Canada ,Adolescent ,Research ,Middle Aged ,Health Surveys ,Health Services Accessibility ,Young Adult ,Cross-Sectional Studies ,Logistic Models ,Health Care Surveys ,Chronic Disease ,Multivariate Analysis ,Humans ,Female ,Self Report ,Needs Assessment ,Aged - Abstract
Background Although effective treatments exist, many Canadians with chronic medical conditions do not receive the full care they require, possibly as a consequence of limited accessibility or availability. A commonly used indicator of inadequate access to or availability of care is the perception of unmet health care needs. The objective of this study was therefore to determine the association between chronic conditions and perceived unmet health care needs. Methods We extracted data for adult respondents from the combined 2001, 2003 and 2005 cross-sectional cycles of the Canadian Community Health Survey. Multivariate logistic regression was used to estimate the association between 7 high-prevalence and high-impact chronic conditions (arthritis, chronic obstructive pulmonary disease/emphysema, diabetes, heart disease, hypertension, mood disorder and stroke) and perceived unmet health care needs in the prior 12 months, adjusting for sociodemographic variables, health behaviours, health status and survey cycle. Results Of the 360 105 adult respondents, 12.2% reported an unmet health care need. Compared with those without chronic conditions, respondents with at least one condition were more likely to report an unmet need (adjusted odds ratio [OR] 1.51, 95% confidence interval [CI] 1.45–1.59). Those with mood disorders were almost twice as likely to report an unmet need (OR 1.94, 95% CI 1.78–2.12), while those with diabetes or hypertension were less likely to report an unmet need (diabetes OR 0.85, 95% CI 0.76–0.94; hypertension OR 0.96, 95% CI 0.89–1.04). Furthermore, the likelihood of an unmet need increased with the number of chronic conditions (OR 1.71, 95% CI 1.56–1.88 for 3 or more conditions). Respondents with chronic conditions were more likely than those without to report an unmet need related to resource availability (OR 1.14, 95% CI 1.06–1.22). Interpretation Adults with chronic medical conditions are more likely to report an unmet health care need, and the likelihood increases with an increasing number of conditions. Whether these unmet needs are associated with worse outcomes, and whether interventions targeted to address these needs may improve outcomes for Canadians with chronic disease, remain to be determined.
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- 2012
21. Validation and optimisation of an ICD-10-coded case definition for sepsis using administrative health data
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Jolley, Rachel J, Quan, Hude, Jetté, Nathalie, Sawka, Keri Jo, Diep, Lucy, Goliath, Jade, Roberts, Derek J, Yipp, Bryan G, and Doig, Christopher J
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Male ,Canada ,Databases, Factual ,Sensitivity and Specificity ,Severity of Illness Index ,Medical Records ,Patient Care/Classification ,Tertiary Care Centers ,International Classification of Diseases ,Sepsis ,International Classification of Disease ,Humans ,Aged ,Research ,Intensive Care ,Clinical Coding ,Middle Aged ,Patient Discharge ,Hospitalization ,Intensive Care Units ,Administrative Data ,Diagnosis Validation ,Female ,Algorithms - Abstract
Objective Administrative health data are important for health services and outcomes research. We optimised and validated in intensive care unit (ICU) patients an International Classification of Disease (ICD)-coded case definition for sepsis, and compared this with an existing definition. We also assessed the definition's performance in non-ICU (ward) patients. Setting and participants All adults (aged ≥18 years) admitted to a multisystem ICU with general medicosurgical ICU care from one of three tertiary care centres in the Calgary region in Alberta, Canada, between 1 January 2009 and 31 December 2012 were included. Research design Patient medical records were randomly selected and linked to the discharge abstract database. In ICU patients, we validated the Canadian Institute for Health Information (CIHI) ICD-10-CA (Canadian Revision)-coded definition for sepsis and severe sepsis against a reference standard medical chart review, and optimised this algorithm through examination of other conditions apparent in sepsis. Measures Sensitivity (Sn), specificity (Sp), positive predictive value (PPV) and negative predictive value (NPV) were calculated. Results Sepsis was present in 604 of 1001 ICU patients (60.4%). The CIHI ICD-10-CA-coded definition for sepsis had Sn (46.4%), Sp (98.7%), PPV (98.2%) and NPV (54.7%); and for severe sepsis had Sn (47.2%), Sp (97.5%), PPV (95.3%) and NPV (63.2%). The optimised ICD-coded algorithm for sepsis increased Sn by 25.5% and NPV by 11.9% with slightly lowered Sp (85.4%) and PPV (88.2%). For severe sepsis both Sn (65.1%) and NPV (70.1%) increased, while Sp (88.2%) and PPV (85.6%) decreased slightly. Conclusions This study demonstrates that sepsis is highly undercoded in administrative data, thus under-ascertaining the true incidence of sepsis. The optimised ICD-coded definition has a higher validity with higher Sn and should be preferentially considered if used for surveillance purposes.
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- 2015
22. Cardiovascular risk factors in ethnic populations within Canada: results from national cross-sectional surveys
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Liu, Richard, So, Lawrence, Mohan, Sailesh, Khan, Nadia, King, Kathryn, and Quan, Hude
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Research - Abstract
Background Differences in the prevalence of cardiovascular disease and associated risk factors have been noted across ethnic groups both within and between countries. The Canadian population is becoming increasingly diverse because of immigration. Understanding ethnic differences in cardiovascular risk factors is critically important in planning appropriate prevention strategies for the country’s rapidly changing population. We sought to examine the prevalence of cardiovascular risk factors in various Canadian ethnic groups. Methods We analyzed 3 cross-sectional cycles (for 2000, 2003 and 2005) of the Canadian Community Health Survey of people aged 12 years and older. The surveys were conducted by means of self-reported questionnaires. We used stratified analysis to evaluate the relation between risk factors and ethnicity. The effect of participants’ ethnicity on the prevalence of risk factors was estimated by means of logistic regression, with adjustment for differences in age, sex, marital status, education, household income, language spoken, immigration status, residency type (urban or rural), household size, region (province or territory) and chronic diseases (heart disease, stroke, cancer, bronchitis, chronic obstructive pulmonary disease, bowel disease, arthritis, epilepsy, ulcers, thyroid disease and diabetes mellitus). Results We included 371 154 individuals in the analysis. Compared with white people, people from visible minorities (i.e., neither white nor Aboriginal) had a lower prevalence of diabetes mellitus (4.5% v. 4.0%), hypertension (14.7% v. 10.8%), smoking (20.4% v. 9.7%) and obesity (defined as body mass index ≥ 30; 14.8% v. 9.7%) but a higher prevalence of physical inactivity (50.3% v. 58.1%). More specifically, after adjustment for sociodemographic characteristics, people from most visible minorities, in comparison with the white population, were less likely to smoke; were more likely to be physically inactive, with the exception of people of Korean, Japanese and Latin ethnicity; and were less likely to be obese, with the exception of people of black, Latin, Arab or West Asian ethnicity. However, relative to white people, hypertension was more prevalent among those of Filipino or South East Asian background (odds ratio [OR] 1.54, 95% confidence interval [CI] 1.23–1.93) and those of black ancestry (OR 1.69, 95% CI 1.43–2.00). Interpretation Cardiovascular risk factors vary dramatically by ethnic group. Health professionals should increase their promotion of physical activity among visible minorities and should prioritize the detection and control of diabetes and hypertension during routine contact with patients of visible minorities, particularly those of South Asian, Filipino and black ethnicity.
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- 2010
23. Administrative health data in Canada: lessons from history
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Lucyk, Kelsey, Lu, Mingshan, Sajobi, Tolulope, and Quan, Hude
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Health informatics ,History ,Canada ,Health Policy ,Statistics as Topic ,Administrative data ,History, 20th Century ,History, 21st Century ,Health services research ,Humans ,Registries ,Medical Informatics ,Qualitative Research ,Research Article - Abstract
Background Health decision-making requires evidence from high-quality data. As one example, the Discharge Abstract Database (DAD) compiles data from the majority of Canadian hospitals to form one of the most comprehensive and highly regarded administrative health databases available for health research, internationally. However, despite the success of this and other administrative health data resources, little is known about their history or the factors that have led to their success. The purpose of this paper is to provide an historical overview of Canadian administrative health data for health research to contribute to the institutional memory of this field. Methods We conducted a qualitative content analysis of approximately 20 key sources to construct an historical narrative of administrative health data in Canada. Specifically, we searched for content related to key events, individuals, challenges, and successes in this field over time. Results In Canada, administrative health data for health research has developed in tangent with provincial research centres. Interestingly, the lessons learned from this history align with the original recommendations of the 1964 Royal Commission on Health Services: (1) standardization, and (2) centralization of data resources, that is (3) facilitated through governmental financial support. Conclusions The overview history provided here illustrates the need for longstanding partnerships between government and academia, for classification, terminology and standardization are time-consuming and ever-evolving processes. This paper will be of interest to those who work with administrative health data, and also for countries that are looking to build or improve upon their use of administrative health data for decision-making.
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- 2015
24. Charts versus Discharge ICD-10 Coding for Sternal Wound Infection Following Coronary Artery Bypass Grafting
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Southern, Danielle A., Doherty, Christopher, De Souza, Michael A., Quan, Hude, Harrop, A. Robertson, Nickerson, Duncan, and Rabi, Doreen
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Male ,International Classification of Diseases ,Data Mining ,Humans ,Reproducibility of Results ,Surgical Wound Infection ,Female ,Documentation ,Coronary Artery Bypass ,Article ,Algorithms ,Patient Discharge - Abstract
Sternal wound infection (SWI) in patients undergoing coronary artery bypass grafting (CABG) can carry a significant risk of morbidity and mortality. The objective of this work is to describe the methods used to identify cases of SWI in an administrative database and to demonstrate the effectiveness of using an International Classification of Diseases, Tenth Revision (ICD-10) coding algorithm for this purpose.ICD-10 codes were used to identify cases of SWI within one year of CABG between April 2002 and November 2009. We randomly chose 200 charts for detailed chart review (100 from each of the groups coded as having SWI and not having SWI) to determine the utility of the ICD-10 coding algorithm.There were 2,820 patients undergoing CABG. Of these, 264 (9.4 percent) were coded as having SWI. Thirty-eight cases of SWI were identified by chart review. The ICD-10 coding algorithm of T81.3 or T81.4 was able to identify incident SWI with a positive predictive value of 35 percent and a negative predictive value of 97 percent. The agreement between the ICD-10 coding algorithm and presence of SWI remained fair, with an overall kappa coefficient of 0.32 (95 percent confidence interval, 0.22-0.43). The effectiveness of identifying deep SWI cases is also presented.This article describes an effective algorithm for identifying a cohort of patients with SWI following open sternotomy in large databases using ICD-10 coding. In addition, alternative search strategies are presented to suit researchers' needs.
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- 2015
25. Language barriers: Use of regular medical doctors by Canada’s official language minorities
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Ngwakongnwi, Emmanuel, Hemmelgarn, Brenda R., Musto, Richard, King-Shier, Kathryn M., and Quan, Hude
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Adult ,Aged, 80 and over ,Male ,Canada ,Health Knowledge, Attitudes, Practice ,Adolescent ,Primary Health Care ,Research ,Communication Barriers ,Middle Aged ,Health Services Accessibility ,Telemedicine ,Young Adult ,Cross-Sectional Studies ,Logistic Models ,General Practitioners ,Health Care Surveys ,Multivariate Analysis ,Humans ,Female ,Minority Groups ,Aged ,Language - Abstract
To assess use of regular medical doctors (RMDs), as well as awareness and use of telephone health lines or telehealth services, by official language minorities (OLMs) in Canada.Analysis of data from the 2006 postcensal survey on the vitality of OLMs.Canada.In total, 7691 English speakers in Quebec and 12 376 French speakers outside Quebec, grouped into those who experienced language barriers and those with no language barriers.Health services utilization (HSU) by the presence of language barriers; HSU measures included having an RMD, use of an RMD's services, and awareness of and use of telephone health lines or telehealth services. Multivariable models examined the associations between HSU and language barriers.After adjusting for age and sex, English speakers residing in Quebec with limited proficiency in French were less likely to have RMDs (adjusted odds ratio [AOR] 0.66, 95% CI 0.50 to 0.87) and to use the services of their RMDs (AOR 0.65, 95% CI 0.50 to 0.86), but were more likely to be aware of the existence of (AOR 1.50, 95% CI 1.16 to 1.93) and to use (AOR 1.43, 95% CI 0.97 to 2.11) telephone health lines or telehealth services. This pattern of having and using RMDs and telehealth services was not observed for French speakers residing outside of Quebec.Overall we found variation in HSU among the language barrier populations, with lower use observed in Quebec. Age older than 45 years, male sex, being married or in common-law relationships, and higher income were associated with having RMDs for OLMs.
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- 2012
26. A systematic review of interventions to increase breast and cervical cancer screening uptake among Asian women
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Lu, Mingshan, Moritz, Sabina, Lorenzetti, Diane, Sykes, Lindsay, Straus, Sharon, and Quan, Hude
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Asian People ,lcsh:Public aspects of medicine ,Public Health, Environmental and Occupational Health ,Humans ,Uterine Cervical Neoplasms ,lcsh:RA1-1270 ,Breast Neoplasms ,Female ,Health Promotion ,Early Detection of Cancer ,Research Article - Abstract
Background The Asian population is one of the fastest growing ethnic minority groups in western countries. However, cancer screening uptake is consistently lower in this group than in the native-born populations. As a first step towards developing an effective cancer screening intervention program targeting Asian women, we conducted a comprehensive systematic review, without geographic, language or date limitations, to update current knowledge on the effectiveness of existing intervention strategies to enhance breast and cervical screening uptake in Asian women. Methods This study systematically reviewed studies published as of January 2010 to synthesize knowledge about effectiveness of cancer screening interventions targeting Asian women. Fifteen multidisciplinary peer-reviewed and grey literature databases were searched to identify relevant studies. Results The results of our systematic review were reported in accordance with the PRISMA Statement. Of 37 selected intervention studies, only 18 studies included valid outcome measures (i.e. self-reported or recorded receipt of mammograms or Pap smear). 11 of the 18 intervention studies with valid outcome measures used multiple intervention strategies to target individuals in a specific Asian ethnic group. This observed pattern of intervention design supports the hypothesis that employing a combination of multiple strategies is more likely to be successful than single interventions. The effectiveness of community-based or workplace-based group education programs increases when additional supports, such as assistance in scheduling/attending screening and mobile screening services are provided. Combining cultural awareness training for health care professionals with outreach workers who can help healthcare professionals overcome language and cultural barriers is likely to improve cancer screening uptake. Media campaigns and mailed culturally sensitive print materials alone may be ineffective in increasing screening uptake. Intervention effectiveness appears to vary with ethnic population, methods of program delivery, and study setting. Conclusions Despite some limitations, our review has demonstrated that the effectiveness of existing interventions to promote breast and cervical cancer screening uptake in Asian women may hinge on a variety of factors, such as type of intervention and study population characteristics. While some studies demonstrated the effectiveness of certain intervention programs, the cost effectiveness and long-term sustainability of these programs remain questionable. When adopting an intervention program, it is important to consider the impacts of social-and cultural factors specific to the Asian population on cancer screening uptake. Future research is needed to develop new interventions and tools, and adopt vigorous study design and evaluation methodologies to increase cancer screening among Asian women to promote population health and health equity.
- Published
- 2011
27. Canadian Pregnancy Outcomes in Rheumatoid Arthritis and Systemic Lupus Erythematosus
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Barnabe, Cheryl, Faris, Peter D., and Quan, Hude
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lcsh:Diseases of the musculoskeletal system ,Article Subject ,lcsh:RC925-935 ,skin and connective tissue diseases ,Research Article - Abstract
Objective. To describe obstetrical and neonatal outcomes in Canadian women with rheumatoid arthritis (RA) or systemic lupus erythematosus (SLE). Methods. An administrative database of hospitalizations for neonatal delivery (1998–2009) from Calgary, Alberta was searched to identify women with RA (38 pregnancies) or SLE (95 pregnancies), and women from the general population matched on maternal age and year of delivery (150 and 375 pregnancies, resp.). Conditional logistic regression was used to calculate odds ratios (OR) for maternal and neonatal outcomes, adjusting for parity. Results. Women with SLE had increased odds for preeclampsia or eclampsia (SLE OR 2.16 (95% CI 1.10–4.21; P = 0.024); RA OR 2.33 (95% CI 0.76–7.14; P = 0.138)). Women with SLE had increased odds for cesarean section after adjustment for dysfunctional labour, instrumentation and previous cesarean section (OR 3.47 (95% CI 1.67–7.22; P < 0.001)). Neonates born to women with SLE had increased odds of prematurity (SLE OR 6.17 (95% CI 3.28–11.58; P < 0.001); RA OR 2.66 (95% CI 0.90–7.84; P = 0.076)) and of SGA (SLE OR 2.54 (95% CI 1.42–4.55; P = 0.002); RA OR 2.18 (95% CI 0.84–5.66; P = 0.108)) after adjusting for maternal hypertension. There was no excess risk of congenital defects in neonates. Conclusions. There is increased obstetrical and neonatal morbidity in Canadian women with RA or SLE.
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- 2011
28. The impact of the electronic medical record on structure, process, and outcomes within primary care: a systematic review of the evidence
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Holroyd-Leduc, Jayna M, Lorenzetti, Diane, Straus, Sharon E, Sykes, Lindsay, and Quan, Hude
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Outcome and Process Assessment, Health Care ,Primary Health Care ,Ambulatory Care ,Electronic Health Records ,Humans ,Review ,United States - Abstract
The electronic medical record (EMR)/electronic health record (EHR) is becoming an integral component of many primary-care outpatient practices. Before implementing an EMR/EHR system, primary-care practices should have an understanding of the potential benefits and limitations.The objective of this study was to systematically review the recent literature around the impact of the EMR/EHR within primary-care outpatient practices.Searches of Medline, EMBASE, CINAHL, ABI Inform, and Cochrane Library were conducted to identify articles published between January 1998 and January 2010. The gray literature and reference lists of included articles were also searched. 30 studies met inclusion criteria.The EMR/EHR appears to have structural and process benefits, but the impact on clinical outcomes is less clear. Using Donabedian's framework, five articles focused on the impact on healthcare structure, 21 explored healthcare process issues, and four focused on health-related outcomes.
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- 2011
29. Home care utilization and outcomes among Asian and other Canadian patients with heart failure
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Chen, Guanmin, Khan, Nadia, King, Kathryn M, Hemmelgarn, Brenda R, and Quan, Hude
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Aged, 80 and over ,Heart Failure ,Male ,lcsh:Diseases of the circulatory (Cardiovascular) system ,Databases, Factual ,Middle Aged ,Home Care Services ,Patient Readmission ,Patient Discharge ,Alberta ,Treatment Outcome ,Asian People ,lcsh:RC666-701 ,Research article ,Humans ,Female ,Cardiology and Cardiovascular Medicine ,Aged - Abstract
Background Heart failure (HF) is a major cause of hospitalization and death in the aging population around the world. Home care utilization is associated with improved survival for the patients with HF, and varies by ethno-culture. The purpose of this study was to investigate the difference in hospital readmission rate and mortality between Asian and other Canadian HF patients. Methods HF patients were identified using hospital discharge abstracts from March 31, 2000 to April 1, 2006 in Calgary Health Region. Readmission and one-year mortality for HF were determined by linking hospital discharge and vital statistics data. Stratified by home care services use, readmission and mortality rates were compared between the Asians and other Canadians while controlling for age, sex, comorbidities, and household income. Results Of 26,171 HF patients discharged from hospital, 56.6% of Asians and 58.0% of other Canadians used home care services [adjusted odds ratio (OR) for Asian: 0.84, 95% confidence interval (CI): 0.74-0.89]. The hospital readmission rate was similar between Asians and other Canadians regardless of home care services use. Mortality was similar between those who used home care services (adjusted OR for Asian: 0.96, 95% CI: 0.81-1.13). For patients who did not use home care services, Asians had significantly lower mortality than other Canadians (adjusted OR for Asian: 0.76, 95% CI: 0.60-0.86). Conclusion Mortality was similar between Asian and other Canadian patients when home care services were utilized. However, among those without home care, Asian patients had a significantly lower mortality than other Canadian patients.
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- 2010
30. A comparison between the APACHE II and Charlson Index Score for predicting hospital mortality in critically ill patients
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Quach, Susan, Hennessy, Deirdre A, Faris, Peter, Fong, Andrew, Quan, Hude, and Doig, Christopher
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Male ,Health Policy ,Critical Illness ,lcsh:Public aspects of medicine ,lcsh:RA1-1270 ,Middle Aged ,Alberta ,Intensive Care Units ,health services administration ,Humans ,Female ,Risk Adjustment ,Hospital Mortality ,Research Article ,APACHE ,Aged - Abstract
Background Risk adjustment and mortality prediction in studies of critical care are usually performed using acuity of illness scores, such as Acute Physiology and Chronic Health Evaluation II (APACHE II), which emphasize physiological derangement. Common risk adjustment systems used in administrative datasets, like the Charlson index, are entirely based on the presence of co-morbid illnesses. The purpose of this study was to compare the discriminative ability of the Charlson index to the APACHE II in predicting hospital mortality in adult multisystem ICU patients. Methods This was a population-based cohort design. The study sample consisted of adult (>17 years of age) residents of the Calgary Health Region admitted to a multisystem ICU between April 2002 and March 2004. Clinical data were collected prospectively and linked to hospital outcome data. Multiple regression analyses were used to compare the performance of APACHE II and the Charlson index. Results The Charlson index was a poor predictor of mortality (C = 0.626). There was minimal difference between a baseline model containing age, sex and acute physiology score (C = 0.74) and models containing either chronic health points (C = 0.76) or Charlson index variations (C = 0.75, 0.76, 0.77). No important improvement in prediction occurred when the Charlson index was added to the full APACHE II model (C = 0.808 to C = 0.813). Conclusion The Charlson index does not perform as well as the APACHE II in predicting hospital mortality in ICU patients. However, when acuity of illness scores are unavailable or are not recorded in a standard way, the Charlson index might be considered as an alternative method of risk adjustment and therefore facilitate comparisons between intensive care units.
- Published
- 2009
31. Does Response Rate to Different Survey Modes Change Across Racial and Ethnic Populations?
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Sykes, Lindsay L. and Quan, Hude
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- 2009
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32. Measuring agreement of administrative data with chart data using prevalence unadjusted and adjusted kappa
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Hemmelgarn Brenda, Faris Peter, Chen Guanmin, Walker Robin L, and Quan Hude
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lcsh:R5-920 ,Canada ,Epidemiology ,Hospital Records ,Medical Records ,Sampling Studies ,Alberta ,Random Allocation ,Data Interpretation, Statistical ,Hypertension ,Prevalence ,Humans ,lcsh:Medicine (General) ,Research Article - Abstract
Background Kappa is commonly used when assessing the agreement of conditions with reference standard, but has been criticized for being highly dependent on the prevalence. To overcome this limitation, a prevalence-adjusted and bias-adjusted kappa (PABAK) has been developed. The purpose of this study is to demonstrate the performance of Kappa and PABAK, and assess the agreement between hospital discharge administrative data and chart review data conditions. Methods The agreement was compared for random sampling, restricted sampling by conditions, and case-control sampling from the four teaching hospitals in Alberta, Canada from ICD10 administrative data during January 1, 2003 and June 30, 2003. A total of 4,008 hospital discharge records and chart view, linked for personal unique identifier and admission date, for 32 conditions of random sampling were analyzed. The restricted sample for hypertension, myocardial infarction and congestive heart failure, and case-control sample for those three conditions were extracted from random sample. The prevalence, kappa, PABAK, positive agreement, negative agreement for the condition was compared for each of three samples. Results The prevalence of each condition was highly dependent on the sampling method, and this variation in prevalence had a significant effect on both kappa and PABAK. PABAK values were obviously high for certain conditions with low kappa values. The gap between these two statistical values for the same condition narrowed as the prevalence of the condition approached 50%. Conclusion Kappa values varied more widely than PABAK values across the 32 conditions. PABAK values should usually not be interpreted as measuring the same agreement as kappa in administrative data, particular for the condition with low prevalence. There is no single statistic measuring agreement that captures the desired information for validity of administrative data. Researchers should report kappa, the prevalence, positive agreement, negative agreement, and the relative frequency in each cell (i.e. a, b, c and d) to enable the reader to judge the validity of administrative data from multiple aspects.
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- 2008
33. Allocation of health resources
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Quan, Hude, Lafreniere, Rene, and Johnson, David
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Correspondence - Published
- 2002
34. Reviewing the reviewers: the quality of reporting in three secondary journals
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Devereaux, P.J., Manns, Braden J., Ghali, William A., Quan, Hude, and Guyatt, Gordon H.
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Chi-Square Distribution ,Bibliometrics ,Research Design ,Research ,Commentary ,Humans ,Periodicals as Topic ,Randomized Controlled Trials as Topic - Abstract
Secondary journals such as ACP Journal Club (ACP), Journal Watch (JW) and Internal Medicine Alert (IMA) have enormous potential to help clinicians remain up to date with medical knowledge. However, for clinicians to evaluate the validity and applicability of new findings, they need information on the study design, methodology and results.Beginning with the first issue in March 1997, we selected 50 consecutive summaries of studies addressing therapy or prevention and internal medicine content from each of the ACP, JW and IMA. We evaluated the summaries for completeness of reporting key aspects of study design, methodology and results.All of the summaries in ACP reported study design, as compared with 72% of the summaries in JW and IMA (p0.001). In summaries of randomized controlled trials the 3 secondary journals were similar in reporting concealment of patient allocation (none reported this), blinding status of participants (ACP 62%, JW 70% and IMA 70% [p = 0.7]), blinding status of health care providers (ACP 12%, JW 4% and IMA 4% [p = 0.4]) and blinding status of judicial assessors of outcomes (ACP 4%, JW 4% and IMA 0% [p = 0.4]). ACP was the only one to report whether investigators conducted an intention-to-treat analysis (in 38% of summaries [p0.001]), and it was more likely than the other 2 journals to report the precision of the treatment effect (as a p value or 95% confidence interval) (ACP 100%, JW 0% and IMA 55% [p0.001]).Although ACP provided more information on study design, methodology and results, all 3 secondary journals often omitted important information. More complete reporting is necessary for secondary journals to fulfill their potential to help clinicians evaluate the medical literature.
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- 2001
35. Implementation of ICD-10 in Canada: how has it impacted coded hospital discharge data?
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Walker, Robin L, Hennessy, Deirdre A, Johansen, Helen, Sambell, Christie, Lix, Lisa, and Quan, Hude
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Canada ,International classification of disease version 10 ,Coding ,Health Policy ,lcsh:Public aspects of medicine ,Administrative data ,Clinical Coding ,lcsh:RA1-1270 ,Comorbidity ,Hospitals ,Medical Records ,Patient Discharge ,Patient Admission ,Cost of Illness ,Hospital records ,International Classification of Diseases ,Chronic Disease ,Prevalence ,Humans ,Hospital Mortality ,Hospital discharge data ,Hospital Units ,Algorithms ,Diagnosis-Related Groups ,Research Article - Abstract
Background The purpose of this study was to assess whether or not the change in coding classification had an impact on diagnosis and comorbidity coding in hospital discharge data across Canadian provinces. Methods This study examined eight years (fiscal years 1998 to 2005) of hospital records from the Hospital Person-Oriented Information database (HPOI) derived from the Canadian national Discharge Abstract Database. The average number of coded diagnoses per hospital visit was examined from 1998 to 2005 for provinces that switched from International Classifications of Disease 9th version (ICD-9-CM) to ICD-10-CA during this period. The average numbers of type 2 and 3 diagnoses were also described. The prevalence of the Charlson comorbidities and distribution of the Charlson score one year before and one year after ICD-10 implementation for each of the 9 provinces was examined. The prevalence of at least one of the seventeen Charlson comorbidities one year before and one year after ICD-10 implementation were described by hospital characteristics (teaching/non-teaching, urban/rural, volume of patients). Results Nine Canadian provinces switched from ICD-9-CM to ICD-I0-CA over a 6 year period starting in 2001. The average number of diagnoses coded per hospital visit for all code types over the study period was 2.58. After implementation of ICD-10-CA a decrease in the number of diagnoses coded was found in four provinces whereas the number of diagnoses coded in the other five provinces remained similar. The prevalence of at least one of the seventeen Charlson conditions remained relatively stable after ICD-10 was implemented, as did the distribution of the Charlson score. When stratified by hospital characteristics, the prevalence of at least one Charlson condition decreased after ICD-10-CA implementation, particularly for low volume hospitals. Conclusion In conclusion, implementation of ICD-10-CA in Canadian provinces did not substantially change coding practices, but there was some coding variation in the average number of diagnoses per hospital visit across provinces.
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- 2012
36. Cardiac medication prescribing and adherence after acute myocardial infarction in Chinese and South Asian Canadian patients
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Lai, Emily J, Grubisic, Maja, Palepu, Anita, Quan, Hude, King, Kathryn M, and Khan, Nadia A
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cardiovascular diseases ,3. Good health - Abstract
Background: Failure to adhere to cardiac medications after acute myocardial infarction (AMI) is associated with increased mortality. Language barriers and preference for traditional medications may predispose certain ethnic groups at high risk for non-adherence. We compared prescribing and adherence to ACE-inhibitors (ACEI), beta-blockers (BB), and statins following AMI among elderly Chinese, South Asian, and Non-Asian patients. Methods Retrospective-cohort study of elderly AMI survivors (1995-2002) using administrative data from British Columbia. AMI cases and ethnicity were identified using validated ICD-9/10 coding and surname algorithms, respectively. Medication adherence was assessed using the 'proportion of days covered' (PDC) metric with a PDC ≥ 0.80 indicating optimal adherence. The independent effect of ethnicity on adherence was assessed using multivariable modeling, adjusting for socio-demographic and clinical characteristics. Results There were 9926 elderly AMI survivors (258 Chinese, 511 South Asian patients). More Chinese patients were prescribed BBs (79.7% vs. 73.1%, p = 0.04) and more South Asian patients were prescribed statins (73.5% vs. 65.2%, p = 0.001). Both Chinese (Odds Ratio [OR] 0.53; 95%CI, 0.39-0.73; p < 0.0001) and South Asian (OR 0.78; 95%CI, 0.61-0.99; p = 0.04) patients were less adherent to ACEI compared to Non-Asian patients. South Asian patients were more adherent to BBs (OR 1.3; 95%CI, 1.04-1.62; p = 0.02). There was no difference in prescribing of ACEI, nor adherence to statins among the ethnicities. Conclusion Despite a higher likelihood of being prescribed evidence-based therapies following AMI, Chinese and South Asian patients were less likely to adhere to ACEI compared to their Non-Asian counterparts.
37. Comparing public and private hospitals in China: Evidence from Guangdong
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Yang Zhe, Wang Jian, Li Congdong, Lu Mingshan, Eggleston Karen, Zhang Jing, and Quan Hude
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China ,Hospitals, Public ,lcsh:Public aspects of medicine ,Health Policy ,Multivariate Analysis ,Research article ,Humans ,lcsh:RA1-1270 ,Hospitals, Proprietary ,Diagnosis-Related Groups ,health care economics and organizations ,Hospitals, Private ,Quality of Health Care - Abstract
Background The literature comparing private not-for-profit, for-profit, and government providers mostly relies on empirical evidence from high-income and established market economies. Studies from developing and transitional economies remain scarce, especially regarding patient case-mix and quality of care in public and private hospitals, even though countries such as China have expanded a mixed-ownership approach to service delivery. The purpose of this study is to compare the operations and performance of public and private hospitals in Guangdong Province, China, focusing on differences in patient case-mix and quality of care. Methods We analyze survey data collected from 362 government-owned and private hospitals in Guangdong Province in 2005, combining mandatorily reported administrative data with a survey instrument designed for this study. We use univariate and multi-variate regression analyses to compare hospital characteristics and to identify factors associated with simple measures of structural quality and patient outcomes. Results Compared to private hospitals, government hospitals have a higher average value of total assets, more pieces of expensive medical equipment, more employees, and more physicians (controlling for hospital beds, urban location, insurance network, and university affiliation). Government and for-profit private hospitals do not statistically differ in total staffing, although for-profits have proportionally more support staff and fewer medical professionals. Mortality rates for non-government non-profit and for-profit hospitals do not statistically differ from those of government hospitals of similar size, accreditation level, and patient mix. Conclusions In combination with other evidence on health service delivery in China, our results suggest that changes in ownership type alone are unlikely to dramatically improve or harm overall quality. System incentives need to be designed to reward desired hospital performance and protect vulnerable patients, regardless of hospital ownership type.
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38. Methods for identifying 30 chronic conditions: application to administrative data
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Tonelli, Marcello, Wiebe, Natasha, Fortin, Martin, Guthrie, Bruce, Hemmelgarn, Brenda R, James, Matthew T, Klarenbach, Scott W, Lewanczuk, Richard, Manns, Braden J, Ronksley, Paul, Sargious, Peter, Straus, Sharon, and Quan, Hude
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Databases, Factual ,National Health Programs ,Health Policy ,Administrative data ,Multimorbidity ,Reproducibility of Results ,Correction ,Health Informatics ,Comorbidity ,Sensitivity and Specificity ,Alberta ,International Classification of Diseases ,Epidemiologic Research Design ,Chronic Disease ,Humans ,Algorithms ,Research Article - Abstract
Background Multimorbidity is common and associated with poor clinical outcomes and high health care costs. Administrative data are a promising tool for studying the epidemiology of multimorbidity. Our goal was to derive and apply a new scheme for using administrative data to identify the presence of chronic conditions and multimorbidity. Methods We identified validated algorithms that use ICD-9 CM/ICD-10 data to ascertain the presence or absence of 40 morbidities. Algorithms with both positive predictive value and sensitivity ≥70% were graded as “high validity”; those with positive predictive value ≥70% and sensitivity
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39. Exploring physician specialist response rates to web-based surveys
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Cunningham, Ceara Tess, Quan, Hude, Hemmelgarn, Brenda, Noseworthy, Tom, Beck, Cynthia A, Dixon, Elijah, Samuel, Susan, Ghali, William A, Sykes, Lindsay L, and Jetté, Nathalie
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Epidemiology - Full Text
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40. Development and validation of method for defining conditions using Chinese electronic medical record
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Xu, Yuan, Li, Ning, Lu, Mingshan, Myers, Robert P., Dixon, Elijah, Walker, Robin, Sun, Libo, Zhao, Xiaofei, and Quan, Hude
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health care facilities, manpower, and services ,health services administration ,Health Policy ,Health Informatics ,health care economics and organizations - Full Text
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41. Coding of obesity in administrative hospital discharge abstract data: accuracy and impact for future research studies
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Martin, Billie-Jean, Chen, Guanmin, Graham, Michelle, and Quan, Hude
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Health Policy - Full Text
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42. Risk factors, quality of care and prognosis in South Asian, East Asian and White patients with stroke
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Khan, Nadia A, Quan, Hude, Hill, Michael D, Pilote, Louise, McAlister, Finlay A, Palepu, Anita, Shah, Baiju R, Zhou, Limei, Zhen, Hong, and Kapral, Moira K
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3. Good health - Abstract
Background: Stroke has emerged as a significant and escalating health problem for Asian populations. We compared risk factors, quality of care and risk of death or recurrent stroke in South Asian, East Asian and White patients with acute ischemic and hemorrhagic stroke. Methods Retrospective analysis was performed on consecutive patients with ischemic stroke or intracerebral hemorrhage admitted to 12 stroke centers in Ontario, Canada (July 2003-March 2008) and included in the Registry of the Canadian Stroke Network database. The database was linked to population-based administrative databases to determine one-year risk of death or recurrent stroke. Results The study included 253 South Asian, 513 East Asian and 8231 White patients. East Asian patients were more likely to present with intracerebral hemorrhage (30%) compared to South Asian (17%) or White patients (15%) (p2 hours for more than two thirds of patients in all ethnic groups. Processes of stroke care, including thrombolysis, diagnostic imaging, antithrombotic medications, and rehabilitation services were similar among ethnic groups. Risk of death or recurrent stroke at one year after ischemic stroke was similar for patients who were White (27.6%), East Asian (24.7%, aHR 0.97, 95% CI 0.78-1.21 vs. White), or South Asian (21.9%, aHR 0.91, 95% CI 0.67-1.24 vs. White). Although risk of death or recurrent stroke at one year after intracerebral hemorrhage was higher in East Asian (35.5%) and White patients (47.9%) compared to South Asian patients (30.2%) (p=0.002), these differences disappeared after adjustment for age, sex, stroke severity and comorbid conditions (aHR 0.89 [0.67-1.19] for East Asian vs White and 0.99 [0.54-1.81] for South Asian vs. White). Conclusion After stratification by stroke type, stroke care and outcomes are similar across ethnic groups in Ontario. Enhanced health promotion is needed to reduce delays to hospital for all ethnic groups.
43. Outcomes following percutaneous coronary intervention and coronary artery bypass grafting surgery in Chinese, South Asian and white patients with acute myocardial infarction: administrative data analysis
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Gasevic, Danijela, Khan, Nadia A, Qian, Hong, Karim, Shahzad, Simkus, Gerald, Quan, Hude, Mackay, Martha H, O’Neill, Blair J, and Ayyobi, Amir F
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surgical procedures, operative ,cardiovascular diseases ,3. Good health - Abstract
Background. Little is known on whether there are ethnic differences in outcomes following percutaneous coronary intervention (PCI) and coronary artery bypass grafting surgery (CABG) after acute myocardial infarction (AMI). We compared 30-day and long-term mortality, recurrent AMI, and congestive heart failure in South Asian, Chinese and White patients with AMI who underwent PCI and CABG. Methods Hospital administrative data in British Columbia (BC), Canada were linked to the BC Cardiac Registry to identify all patients with AMI who underwent PCI (n = 4729) or CABG (n = 1687) (1999–2003). Ethnicity was determined from validated surname algorithms. Logistic regression for 30-day mortality and Cox proportional-hazards models were adjusted for age, sex, socio-economic status, severity of coronary disease, comorbid conditions, time from AMI to a revascularization procedure and distance to the nearest hospital. Results Following PCI, Chinese had higher short-term mortality (Odds Ratio (OR): 2.36, 95% CI: 1.12-5.00; p = 0.02), and South Asians had a higher risk for recurrent AMI (OR: 1.34, 95% CI: 1.08-1.67, p = 0.007) and heart failure (OR 1.81, 95% CI: 1.00-3.29, p = 0.05) compared to White patients. Risk of heart failure was higher in South Asian patients who underwent CABG compared to White patients (OR (95% CI) = 2.06 (0.92-4.61), p = 0.08). There were no significant differences in mortality following CABG between groups. Conclusions Chinese and South Asian patients with AMI and PCI or CABG had worse outcomes compared to their White counterparts. Further studies are needed to confirm these findings and investigate potential underlying causes.
44. Assessing the association between occupancy and outcome in critically Ill hospitalized patients with sepsis
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Yergens, Dean W., Ghali, William A., Faris, Peter D., Quan, Hude, Jolley, Rachel J., and Doig, Christopher J.
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Male ,Canada ,Time Factors ,Waiting Lists ,Critical Illness ,Severity of Illness Index ,Sex Factors ,Sepsis ,Health services research ,Humans ,Intensive care unit ,Hospital Mortality ,Admissions ,Aged ,Retrospective Studies ,Aged, 80 and over ,Emergency department ,Age Factors ,Occupancy ,Length of Stay ,Middle Aged ,Patient flow ,Intensive Care Units ,Crowding ,Outcome and Process Assessment, Health Care ,Emergency Medicine ,Female ,Triage ,Emergency Service, Hospital ,Research Article - Abstract
Background Sepsis has a high prevalence, mortality-rate and cost. Sepsis patients usually enter the hospital through the Emergency Department (ED). Process or structural issues related to care may affect outcome. Methods Multi-centered retrospective observational cohort study using administrative databases to identify adult patients (> = 18 years) with sepsis and severe sepsis admitted to Alberta Health Services Calgary zone adult multisystem intensive care units (ICU) through the ED between January 1, 2006 and September 30, 2009. We examined the association between ICU occupancy and hospital outcome. We explored other associations of hospital outcome including the effect of ED wait time, admission from ED during weekdays versus weekends and ED admission during the day versus at night. Results One thousand and seven hundred seventy patients were admitted to hospital via ED, 1036 (58.5 %) with sepsis and 734 (41.5 %) with severe sepsis. In patients with sepsis, ICU occupancy > 90 % was associated with an increase in hospital mortality even after adjusting for age, sex, triage level, Charlson index, time of first ED physician assessment and ICU admission. No differences in hospital mortality were found for patients who waited more than 7 h, were admitted during the day versus night or weekdays versus weekends. Conclusions In patients with sepsis admitted via the ED, increased ICU occupancy was associated with higher in-hospital mortality.
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45. Postoperative complications following colectomy for ulcerative colitis: A validation study
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Ma Christopher, Crespin Marcelo, Proulx Marie-Claude, DeSilva Shanika, Hubbard James, Prusinkiewicz Martin, Nguyen Geoffrey C, Panaccione Remo, Ghosh Subrata, Myers Robert P, Quan Hude, and Kaplan Gilaad G
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Adult ,Male ,Electronic Data Processing ,Incidence ,Clinical Coding ,Gastroenterology ,Middle Aged ,Sensitivity and Specificity ,Medical Records ,Alberta ,Postoperative Complications ,Treatment Outcome ,Risk Factors ,Humans ,Regression Analysis ,lcsh:Diseases of the digestive system. Gastroenterology ,Colitis, Ulcerative ,Female ,lcsh:RC799-869 ,Colectomy ,Retrospective Studies ,Research Article - Abstract
Background Ulcerative colitis (UC) patients failing medical management require colectomy. This study compares risk estimates for predictors of postoperative complication derived from administrative data against that of chart review and evaluates the accuracy of administrative coding for this population. Methods Hospital administrative databases were used to identify adults with UC undergoing colectomy from 1996–2007. Medical charts were reviewed and regression analyses comparing chart versus administrative data were performed to assess the effect of age, emergent operation, and Charlson comorbidities on the occurrence of postoperative complications. Sensitivity, specificity, and positive/negative predictive values of administrative coding for identifying the study population, Charlson comorbidities, and postoperative complications were assessed. Results Compared to chart review, administrative data estimated a higher magnitude of effect for emergent admission (OR 2.52 [95% CI: 1.80–3.52] versus 1.49 [1.06–2.09]) and Charlson comorbidities (OR 2.91 [1.86–4.56] versus 1.50 [1.05–2.15]) as predictors of postoperative complications. Administrative data correctly identified UC and colectomy in 85.9% of cases. The administrative database was 37% sensitive in identifying patients with ≥ 1Charlson comorbidity. Restricting analysis to active comorbidities increased the sensitivity to 63%. The sensitivity of identifying patients with at least one postoperative complication was 68%; restricting analysis to more severe complications improved the sensitivity to 84%. Conclusions Administrative data identified the same risk factors for postoperative complications as chart review, but overestimated the magnitude of risk. This discrepancy may be explained by coding inaccuracies that selectively identifying the most serious complications and comorbidities.
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