12 results on '"Turner, Elizabeth L."'
Search Results
2. Correction: Incentivizing appropriate malaria case management in the private sector: a study protocol for two linked cluster randomized controlled trials to evaluate provider- and client-focused interventions in western Kenya and Lagos, Nigeria.
- Author
-
Woolsey, Aaron M., Simmons, Ryan A., Woldeghebriel, Meley, Zhou, Yunji, Ogunsola, Oluwatosin, Laing, Sarah, Olaleye, Tayo, Kipkoech, Joseph, Rojas, Bomar Mendez, Saran, Indrani, Odhiambo, Mercy, Malinga, Josephine, Ambani, George, Kimachas, Emmah, Fashanu, Chizoba, Wiwa, Owens, Menya, Diana, Laktabai, Jeremiah, Visser, Theodoor, and Turner, Elizabeth L.
- Subjects
CLUSTER randomized controlled trials ,RESEARCH protocols ,PRIVATE sector ,MALARIA - Abstract
In the process of re-allocating the participating shops/clusters, the control and client-directed incentive arms of the study were collapsed into a new control arm while the provider-directed incentive and combined incentive arms of the prior study design were collapsed into a new combined-intervention arm. To maintain both the geographical distribution of study-enrolled shops and the average data collection rates per arm, we then randomly switched four of shops from the new control arm into the combined intervention arm. [Extracted from the article]
- Published
- 2022
- Full Text
- View/download PDF
3. Can individuals' beliefs help us understand nonadherence to malaria test results? Evidence from rural Kenya.
- Author
-
Maffioli, Elisa Maria, Prudhomme O'Meara, Wendy, Turner, Elizabeth L., and Mohanan, Manoj
- Subjects
MALARIA ,DIAGNOSIS methods ,EVIDENCE - Abstract
In malaria‐endemic countries about a quarter of test‐negative individuals take antimalarials (artemisinin‐based combination therapies [ACTs]). ACT overuse depletes scarce resources for subsidies and contributes to parasite resistance. As part of an experiment in Kenya that provided subsidies for rapid diagnostic test and/or for ACTs conditionally on being positive, we studied the association between beliefs on malaria status (prior and posterior the intervention) and decisions to get tested and to purchase ACTs. We find that prior beliefs do not explain the decision of getting tested (conditional on the price) and nonadherence to a negative test. However, test‐negative individuals who purchase ACTs report higher posterior beliefs than those who do not, consistent with a framework in which the formers revise beliefs upward, while the latters do not change or revise downward. We also do not find evidence that prior beliefs on ACT effectiveness and trust in test results play any major role in explaining testing or treatment behavior. Further research is needed to improve adherence to malaria‐negative test results. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
4. Incentivizing appropriate malaria case management in the private sector: a study protocol for two linked cluster randomized controlled trials to evaluate provider- and client-focused interventions in western Kenya and Lagos, Nigeria.
- Author
-
Woolsey, Aaron M., Simmons, Ryan A., Woldeghebriel, Meley, Zhou, Yunji, Ogunsola, Oluwatosin, Laing, Sarah, Olaleye, Tayo, Kipkoech, Joseph, Rojas, Bomar Mendez, Saran, Indrani, Odhiambo, Mercy, Malinga, Josephine, Ambani, George, Kimachas, Emmah, Fashanu, Chizoba, Wiwa, Owens, Menya, Diana, Laktabai, Jeremiah, Visser, Theodoor, and Turner, Elizabeth L.
- Subjects
CLUSTER randomized controlled trials ,CONSUMER behavior ,MALARIA ,PRIVATE sector ,OUTLET stores - Abstract
Background: A large proportion of artemisinin-combination therapy (ACT) anti-malarial medicines is consumed by individuals that do not have malaria. The over-consumption of ACTs is largely driven by retail sales in high malaria-endemic countries to clients who have not received a confirmatory diagnosis. This study aims to target ACT sales to clients receiving a confirmatory diagnosis using malaria rapid diagnostic tests (mRDTs) at retail outlets in Kenya and Nigeria.Methods: This study comprises two linked four-arm 2 × 2 factorial cluster randomized controlled trials focused on malaria diagnostic testing and conditional ACT subsidies with the goal to evaluate provider-directed and client-directed interventions. The linked trials will be conducted at two contrasting study sites: a rural region around Webuye in western Kenya and the urban center of Lagos, Nigeria. Clusters are 41 and 48 participating retail outlets in Kenya and Nigeria, respectively. Clients seeking care at participating outlets across all arms will be given the option of paying for a mRDT-at a study-recommended price-to be conducted at the outlet. In the provider-directed intervention arm, the outlet owner receives a small monetary incentive to perform the mRDT. In the client-directed intervention arm, the client receives a free ACT if they purchase an mRDT and receive a positive test result. Finally, the fourth study arm combines both the provider- and client-directed interventions. The diagnosis and treatment choices made during each transaction will be captured using a mobile phone app. Study outcomes will be collected through exit interviews with clients, who sought care for febrile illness, at each of the enrolled retail outlets.Results: The primary outcome measure is the proportion of all ACTs that are sold to malaria test-positive clients in each study arm. For all secondary outcomes, we will evaluate the degree to which the interventions affect purchasing behavior among people seeking care for a febrile illness at the retail outlet.Conclusions: If our study demonstrates that malaria case management can be improved in the retail sector, it could reduce overconsumption of ACTs and enhance targeting of publicly funded treatment reimbursements, lowering the economic barrier to appropriate diagnosis and treatment for patients with malaria.Trial Registration: ClinicalTrials.gov NCT04428307 , registered June 9, 2020, and NCT04428385 , registered June 9, 2020. [ABSTRACT FROM AUTHOR]- Published
- 2021
- Full Text
- View/download PDF
5. Effectiveness of Group Problem Management Plus (Group-PM+) for adults affected by humanitarian crises in Nepal: study protocol for a cluster randomized controlled trial.
- Author
-
van't Hof, Edith, Sangraula, Manaswi, Luitel, Nagendra P., Turner, Elizabeth L., Marahatta, Kedar, van Ommeren, Mark, Shrestha, Pragya, Bryant, Richard, Kohrt, Brandon A., and Jordans, Mark J. D.
- Subjects
CLUSTER randomized controlled trials ,GENERAL Health Questionnaire ,POST-traumatic stress disorder ,RANDOMIZED controlled trials ,MIDDLE-income countries - Abstract
Background: Globally, the lack of availability of psychological services for people exposed to adversities has led to the development of a range of scalable psychological interventions with features that enable better scale-up. Problem Management Plus (PM+) is a brief intervention of five sessions that can be delivered by non-specialists. It is designed for people in communities in low- and middle-income countries (LMIC) affected by any kind of adversity. Two recent randomized controlled trials in Pakistan and Kenya demonstrated the effectiveness of individually delivered PM+. A group version of PM+ has been developed to make the intervention more scalable and acceptable. This paper describes the protocol for a cluster randomized controlled trial (c-RCT) on locally adapted Group PM+ in Nepal.Methods/design: This c-RCT will compare Group PM+ to enhanced usual care (EUC) in participants with high levels of psychological distress recruited from the community. The study is designed as a two-arm, single-blind c-RCT that will be conducted in a community-based setting in Morang, a flood affected district in Eastern Nepal. Randomization will occur at ward level, the smallest administrative level in Nepal, with 72 enrolled wards allocated to Group PM+ or to EUC (ratio 1:1). Group PM+ consists of five approximately 2.5-h sessions, in which participants are taught techniques to manage their stressors and problems, and is delivered by trained and supervised community psychosocial workers (CPSWs). EUC consists of a family meeting with (a) basic information on adversity and mental health, (b) benefits of getting support, (c) information on seeking services from local health facilities with mhGAP-trained staff. The primary outcome measure is levels of individual psychological distress at endline (equivalent to 20 ± 1 weeks after baseline), measured by the General Health Questionnaire (GHQ-12). Secondary outcome measures include levels of functioning, depressive symptoms, post-traumatic stress disorder symptoms, levels of social support, somatic symptoms, and ways of coping. We hypothesize that skills acquired will mediate any impact of the intervention.Discussion: This c-RCT will contribute to the growing evidence-base for transdiagnostic psychological interventions delivered by non-specialists for people in communities affected by adversity. If Group PM+ is proven effective, the intervention manual will be released for use, giving the opportunity for further adaptation and implementation of the intervention in diverse settings with communities that require better access to psychological interventions.Trial Registration: ClinicalTrials.gov, NCT03747055. [ABSTRACT FROM AUTHOR]- Published
- 2020
- Full Text
- View/download PDF
6. Changing literacy instruction in Kenyan classrooms: Assessing pathways of influence to improved early literacy outcomes in the HALI intervention.
- Author
-
Wolf, Sharon, Turner, Elizabeth L., Jukes, Matthew C.H., and Dubeck, Margaret M.
- Subjects
- *
LITERACY education , *READING , *EMERGENT literacy , *EDUCATION , *TEACHING methods - Abstract
Abstract This study uses data from the Health and Literacy Intervention (HALI) program evaluation, an in-service teacher training program focused on early grade literacy instruction for class one teachers. We assess how changes in classroom instructional processes impacted by the HALI teacher training were associated with improved early literacy outcomes for children. We find that experimentally induced increases in exposure to print—measured both through changes to time spent reading in class and through print displayed in the classroom—were associated with improvements in students’ reading fluency and reading comprehension. Implications for global education efforts to improve learning outcomes are discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
7. Impact of Intermittent Screening and Treatment for Malaria among School Children in Kenya: A Cluster Randomised Trial.
- Author
-
Halliday, Katherine E., Okello, George, Turner, Elizabeth L., Njagi, Kiambo, Mcharo, Carlos, Kengo, Juddy, Allen, Elizabeth, Dubeck, Margaret M., Jukes, Matthew C. H., and Brooker, Simon J.
- Subjects
MALARIA diagnosis ,HEALTH care intervention (Social services) ,MEDICAL examinations of children ,HEALTH of school children ,ACADEMIC achievement ,PLASMODIUM falciparum - Abstract
: Katherine Halliday and colleagues conducted a cluster randomized controlled trial in Kenyan school children in an area of low to moderate malaria transmission to investigate the effect of intermittent screening and treatment of malaria on health and education. Please see later in the article for the Editors' Summary [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
8. Plasmodium falciparum, anaemia and cognitive and educational performance among school children in an area of moderate malaria transmission: baseline results of a cluster randomized trial on the coast of Kenya.
- Author
-
Halliday, Katherine E., Karanja, Peris, Turner, Elizabeth L., Okello, George, Njagi, Kiambo, Dubeck, Margaret M., Allen, Elizabeth, Jukes, Matthew C.H., and Brooker, Simon J.
- Subjects
PLASMODIUM falciparum ,ANEMIA in children ,COGNITIVE ability ,MALARIA transmission ,HEALTH of school children ,CLINICAL trials ,COASTS - Abstract
Copyright of Tropical Medicine & International Health is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2012
- Full Text
- View/download PDF
9. Correction to: Incentivizing appropriate malaria case management in the private sector: a study protocol for two linked cluster randomized controlled trials to evaluate provider- and client-focused interventions in western Kenya and Lagos, Nigeria.
- Author
-
Woolsey, Aaron M., Simmons, Ryan A., Woldeghebriel, Meley, Zhou, Yunji, Ogunsola, Oluwatosin, Laing, Sarah, Olaleye, Tayo, Kipkoech, Joseph, Rojas, Bomar Mendez, Saran, Indrani, Odhiambo, Mercy, Malinga, Josephine, Ambani, George, Kimachas, Emmah, Fashanu, Chizoba, Wiwa, Owens, Menya, Diana, Laktabai, Jeremiah, Visser, Theodoor, and Turner, Elizabeth L.
- Subjects
CLUSTER randomized controlled trials ,PRIVATE sector ,MALARIA ,MEDICAL case management - Abstract
An amendment to this paper has been published and can be accessed via the original article. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
10. Evaluation of malaria rapid diagnostic test (RDT) use by community health workers: a longitudinal study in western Kenya.
- Author
-
Boyce, Matthew R., Prudhomme-O'Meara, Wendy, Turner, Elizabeth L., Menya, Diana, and Laktabai, Jeremiah
- Subjects
MALARIA diagnosis ,MALARIA treatment ,MALARIA prevention ,RISK of malaria ,ROUTINE diagnostic tests - Abstract
Background: Malaria rapid diagnostic tests (RDTs) are a simple, point-of-care technology that can improve the diagnosis and subsequent treatment of malaria. They are an increasingly common diagnostic tool, but concerns remain about their use by community health workers (CHWs). These concerns regard the long-term trends relating to infection prevention measures, the interpretation of test results and adherence to treatment protocols. This study assessed whether CHWs maintained their competency at conducting RDTs over a 12-month timeframe, and if this competency varied with specific CHW characteristics. Methods: From June to September, 2015, CHWs (
n = 271) were trained to conduct RDTs using a 3-day validated curriculum and a baseline assessment was completed. Between June and August, 2016, CHWs (n = 105) were randomly selected and recruited for follow-up assessments using a 20-step checklist that classified steps as relating to safety, accuracy, and treatment; 103 CHWs participated in follow-up assessments. Poisson regressions were used to test for associations between error count data at follow-up and Poisson regression models fit using generalized estimating equations were used to compare data across time-points. Results: At both baseline and follow-up observations, at least 80% of CHWs correctly completed 17 of the 20 steps. CHWs being 50 years of age or older was associated with increased total errors and safety errors at baseline and follow-up. At follow-up, prior experience conducting RDTs was associated with fewer errors. Performance, as it related to the correct completion of all checklist steps and safety steps, did not decline over the 12 months and performance of accuracy steps improved (mean error ratio: 0.51; 95% CI 0.40–0.63). Visual interpretation of RDT results yielded a CHW sensitivity of 92.0% and a specificity of 97.3% when compared to interpretation by the research team. None of the characteristics investigated was found to be significantly associated with RDT interpretation. Conclusions: With training, most CHWs performing RDTs maintain diagnostic testing competency over at least 12 months. CHWs generally perform RDTs safely and accurately interpret results. Younger age and prior experiences with RDTs were associated with better testing performance. Future research should investigate the mode by which CHW characteristics impact RDT procedures. [ABSTRACT FROM AUTHOR]- Published
- 2018
- Full Text
- View/download PDF
11. Subsidise the test, the treatment or both? Results of an individually randomised controlled trial of the management of suspected malaria fevers in the retail sector in western Kenya.
- Author
-
Laktabai J, Saran I, Zhou Y, Simmons RA, Turner EL, Visser T, and O'Meara W
- Subjects
- Fever drug therapy, Humans, Kenya epidemiology, Private Sector, Antimalarials therapeutic use, Malaria diagnosis, Malaria drug therapy, Malaria epidemiology
- Abstract
Introduction: In many malaria-endemic countries, the private retail sector is a major source of antimalarial drugs. However, the rarity of malaria diagnostic testing in the retail sector leads to overuse of the first-line class of antimalarial drugs known as artemisinin-combination therapies (ACTs). The goal of this study was to identify the combination of malaria rapid diagnostic test (RDT) and ACT subsidies that maximises the proportion of clients seeking care in a retail outlet that choose to purchase an RDT (RDT uptake) and use ACTs appropriately., Methods: 842 clients seeking care in 12 select retail outlets in western Kenya were recruited and randomised into 4 arms of different combinations of ACT and RDT subsidies, with ACT subsidies conditional on a positive RDT. The outcomes were RDT uptake (primary) and appropriate and targeted ACT use (secondary). Participants' familiarity with RDTs and their confidence in test results were also evaluated., Results: RDT uptake was high (over 96%) across the study arms. Testing uptake was 1.025 times higher (98% CI 1.002 to 1.049) in the RDT subsidised arms than in the unsubsidised groups. Over 98% of clients were aware of malaria testing, but only 35% had a previous experience with RDTs. Nonetheless, confidence in the accuracy of RDTs was high. We found high levels of appropriate use and targeting of ACTs, with 86% of RDT positives taking an ACT, and 93.4% of RDT negatives not taking an ACT. The conditional ACT subsidy did not affect the RDT test purchasing behaviour (risk ratio: 0.994; 98% CI 0.979 to 1.009)., Conclusion: Test dependent ACT subsidies may contribute to ACT targeting. However, in this context, high confidence in the accuracy of RDTs and reliable supplies of RDTs and ACTs likely played a greater role in testing uptake and adherence to test results., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2020
- Full Text
- View/download PDF
12. Improving rational use of ACTs through diagnosis-dependent subsidies: Evidence from a cluster-randomized controlled trial in western Kenya.
- Author
-
Prudhomme O'Meara W, Menya D, Laktabai J, Platt A, Saran I, Maffioli E, Kipkoech J, Mohanan M, and Turner EL
- Subjects
- Adolescent, Adult, Child, Child, Preschool, Community Health Workers, Drug Combinations, Female, Healthcare Financing, Humans, Infant, Kenya epidemiology, Malaria diagnosis, Malaria economics, Malaria parasitology, Male, Predictive Value of Tests, Private Sector economics, Public-Private Sector Partnerships economics, Time Factors, Treatment Outcome, Antimalarials economics, Antimalarials therapeutic use, Artemisinins economics, Artemisinins therapeutic use, Drug Costs, Malaria drug therapy, Medication Adherence, Nonprescription Drugs economics, Nonprescription Drugs therapeutic use, Point-of-Care Testing
- Abstract
Background: More than half of artemisinin combination therapies (ACTs) consumed globally are dispensed in the retail sector, where diagnostic testing is uncommon, leading to overconsumption and poor targeting. In many malaria-endemic countries, ACTs sold over the counter are available at heavily subsidized prices, further contributing to their misuse. Inappropriate use of ACTs can have serious implications for the spread of drug resistance and leads to poor outcomes for nonmalaria patients treated with incorrect drugs. We evaluated the public health impact of an innovative strategy that targets ACT subsidies to confirmed malaria cases by coupling free diagnostic testing with a diagnosis-dependent ACT subsidy., Methods and Findings: We conducted a cluster-randomized controlled trial in 32 community clusters in western Kenya (population approximately 160,000). Eligible clusters had retail outlets selling ACTs and existing community health worker (CHW) programs and were randomly assigned 1:1 to control and intervention arms. In intervention areas, CHWs were available in their villages to perform malaria rapid diagnostic tests (RDTs) on demand for any individual >1 year of age experiencing a malaria-like illness. Malaria RDT-positive individuals received a voucher for a discount on a quality-assured ACT, redeemable at a participating retail medicine outlet. In control areas, CHWs offered a standard package of health education, prevention, and referral services. We conducted 4 population-based surveys-at baseline, 6 months, 12 months, and 18 months-of a random sample of households with fever in the last 4 weeks to evaluate predefined, individual-level outcomes. The primary outcome was uptake of malaria diagnostic testing at 12 months. The main secondary outcome was rational ACT use, defined as the proportion of ACTs used by test-positive individuals. Analyses followed the intention-to-treat principle using generalized estimating equations (GEEs) to account for clustering with prespecified adjustment for gender, age, education, and wealth. All descriptive statistics and regressions were weighted to account for sampling design. Between July 2015 and May 2017, 32,404 participants were tested for malaria, and 10,870 vouchers were issued. A total of 7,416 randomly selected participants with recent fever from all 32 clusters were surveyed. The majority of recent fevers were in children under 18 years (62.9%, n = 4,653). The gender of enrolled participants was balanced in children (49.8%, n = 2,318 boys versus 50.2%, n = 2,335 girls), but more adult women were enrolled than men (78.0%, n = 2,139 versus 22.0%, n = 604). At baseline, 67.6% (n = 1,362) of participants took an ACT for their illness, and 40.3% (n = 810) of all participants took an ACT purchased from a retail outlet. At 12 months, 50.5% (n = 454) in the intervention arm and 43.4% (n = 389) in the control arm had a malaria diagnostic test for their recent fever (adjusted risk difference [RD] = 9 percentage points [pp]; 95% CI 2-15 pp; p = 0.015; adjusted risk ratio [RR] = 1.20; 95% CI 1.05-1.38; p = 0.015). By 18 months, the ARR had increased to 1.25 (95% CI 1.09-1.44; p = 0.005). Rational use of ACTs in the intervention area increased from 41.7% (n = 279) at baseline to 59.6% (n = 403) and was 40% higher in the intervention arm at 18 months (ARR 1.40; 95% CI 1.19-1.64; p < 0.001). While intervention effects increased between 12 and 18 months, we were not able to estimate longer-term impact of the intervention and could not independently evaluate the effects of the free testing and the voucher on uptake of testing., Conclusions: Diagnosis-dependent ACT subsidies and community-based interventions that include the private sector can have an important impact on diagnostic testing and population-wide rational use of ACTs. Targeting of the ACT subsidy itself to those with a positive malaria diagnostic test may also improve sustainability and reduce the cost of retail-sector ACT subsidies., Trial Registration: ClinicalTrials.gov NCT02461628., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2018
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.