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Gerber F, Gupta R, Lejone TI, Tahirsylaj T, Lee T, Sanchez-Samaniego G, Kohler M, Haldemann MI, Raeber F, Chitja M, Mathulise M, Kabi T, Mokaeane M, Maphenchane M, Molulela M, Khomolishoele M, Mota M, Masike S, Bane M, Sematle MP, Makabateng R, Mphunyane M, Phaaroe S, Basler DB, Kindler K, Burkard T, Briel M, Chammartin F, Labhardt ND, Amstutz A. Community-based management of arterial hypertension and cardiovascular risk factors by lay village health workers for people with controlled and uncontrolled blood pressure in rural Lesotho: joint protocol for two cluster-randomized trials within the ComBaCaL cohort study (ComBaCaL aHT Twic 1 and ComBaCaL aHT TwiC 2). Trials 2024; 25:365. [PMID: 38845045 PMCID: PMC11157768 DOI: 10.1186/s13063-024-08226-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 06/03/2024] [Indexed: 06/09/2024] Open
Abstract
BACKGROUND Arterial hypertension (aHT) is a major cause for premature morbidity and mortality. Control rates remain poor, especially in low- and middle-income countries. Task-shifting to lay village health workers (VHWs) and the use of digital clinical decision support systems may help to overcome the current aHT care cascade gaps. However, evidence on the effectiveness of comprehensive VHW-led aHT care models, in which VHWs provide antihypertensive drug treatment and manage cardiovascular risk factors is scarce. METHODS Using the trials within the cohort (TwiCs) design, we are assessing the effectiveness of VHW-led aHT and cardiovascular risk management in two 1:1 cluster-randomized trials nested within the Community-Based chronic disease Care Lesotho (ComBaCaL) cohort study (NCT05596773). The ComBaCaL cohort study is maintained by trained VHWs and includes the consenting inhabitants of 103 randomly selected villages in rural Lesotho. After community-based aHT screening, adult, non-pregnant ComBaCaL cohort participants with uncontrolled aHT (blood pressure (BP) ≥ 140/90 mmHg) are enrolled in the aHT TwiC 1 and those with controlled aHT (BP < 140/90 mmHg) in the aHT TwiC 2. In intervention villages, VHWs offer lifestyle counseling, basic guideline-directed antihypertensive, lipid-lowering, and antiplatelet treatment supported by a tablet-based decision support application to eligible participants. In control villages, participants are referred to a health facility for therapeutic management. The primary endpoint for both TwiCs is the proportion of participants with controlled BP levels (< 140/90 mmHg) 12 months after enrolment. We hypothesize that the intervention is superior regarding BP control rates in participants with uncontrolled BP (aHT TwiC 1) and non-inferior in participants with controlled BP at baseline (aHT TwiC 2). DISCUSSION The TwiCs were launched on September 08, 2023. On May 20, 2024, 697 and 750 participants were enrolled in TwiC 1 and TwiC 2. To our knowledge, these TwiCs are the first trials to assess task-shifting of aHT care to VHWs at the community level, including the prescription of basic antihypertensive, lipid-lowering, and antiplatelet medication in Africa. The ComBaCaL cohort and nested TwiCs are operating within the routine VHW program and countries with similar community health worker programs may benefit from the findings. TRIAL REGISTRATION ClinicalTrials.gov NCT05684055. Registered on January 04, 2023.
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Affiliation(s)
- Felix Gerber
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland.
- University of Basel, Basel, Switzerland.
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland.
| | | | - Thabo Ishmael Lejone
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Thesar Tahirsylaj
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Tristan Lee
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Giuliana Sanchez-Samaniego
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Maurus Kohler
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Maria-Inés Haldemann
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Fabian Raeber
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Dave Brian Basler
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
| | - Kevin Kindler
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- Faculty of Business, Economics and Informatics, University of Zurich, Zurich, Switzerland
| | - Thilo Burkard
- Medical Outpatient Department and Hypertension Clinic, ESH Hypertension Centre of Excellence, University Hospital Basel, Basel, Switzerland
- Department of Cardiology, University Hospital Basel, Basel, Switzerland
| | - Matthias Briel
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada
| | - Frédérique Chammartin
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Niklaus Daniel Labhardt
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Alain Amstutz
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
- Oslo Center for Biostatistics and Epidemiology, Oslo University Hospital, University of Oslo, Oslo, Norway
- Bristol Medical School, University of Bristol, Bristol, UK
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Xiao Y, Fulda KG, Young RA, Hendrix ZN, Daniel KM, Chen KY, Zhou Y, Roye JL, Kosmari L, Wilson J, Espinoza AM, Sutcliffe KM, Pitts SI, Arbaje AI, Chui MA, Blair S, Sloan D, Jackson M, Gurses AP. Patient Partnership Tools to Support Medication Safety in Community-Dwelling Older Adults: Protocol for a Nonrandomized Stepped Wedge Clinical Trial. JMIR Res Protoc 2024; 13:e57878. [PMID: 38684080 PMCID: PMC11091807 DOI: 10.2196/57878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/20/2024] [Accepted: 03/23/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND Preventable harms from medications are significant threats to patient safety in community settings, especially among ambulatory older adults on multiple prescription medications. Patients may partner with primary care professionals by taking on active roles in decisions, learning the basics of medication self-management, and working with community resources. OBJECTIVE This study aims to assess the impact of a set of patient partnership tools that redesign primary care encounters to encourage and empower patients to make more effective use of those encounters to improve medication safety. METHODS The study is a nonrandomized, cross-sectional stepped wedge cluster-controlled trial with 1 private family medicine clinic and 2 public safety-net primary care clinics each composing their own cluster. There are 2 intervention sequences with 1 cluster per sequence and 1 control sequence with 1 cluster. Cross-sectional surveys will be taken immediately at the conclusion of visits to the clinics during 6 time periods of 6 weeks each, with a transition period of no data collection during intervention implementation. The number of visits to be surveyed will vary by period and cluster. We plan to recruit patients and professionals for surveys during 405 visits. In the experimental periods, visits will be conducted with two partnership tools and associated clinic process changes: (1) a 1-page visit preparation guide given to relevant patients by clinic staff before seeing the provider, with the intention to improve communication and shared decision-making, and (2) a library of short educational videos that clinic staff encourage patients to watch on medication safety. In the control periods, visits will be conducted with usual care. The primary outcome will be patients' self-efficacy in medication use. The secondary outcomes are medication-related issues such as duplicate therapies identified by primary care providers and assessment of collaborative work during visits. RESULTS The study was funded in September 2019. Data collection started in April 2023 and ended in December 2023. Data was collected for 405 primary care encounters during that period. As of February 15, 2024, initial descriptive statistics were calculated. Full data analysis is expected to be completed and published in the summer of 2024. CONCLUSIONS This study will assess the impact of patient partnership tools and associated process changes in primary care on medication use self-efficacy and medication-related issues. The study is powered to identify types of patients who may benefit most from patient engagement tools in primary care visits. TRIAL REGISTRATION ClinicalTrials.gov NCT05880368; https://clinicaltrials.gov/study/NCT05880368. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/57878.
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Affiliation(s)
- Yan Xiao
- College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX, United States
- College of Engineering, University of Texas at Arlington, Arlington, TX, United States
| | - Kimberley G Fulda
- Department of Family Medicine and Osteopathic Manipulative Medicine and North Texas Primary Care Practice-Based Research Network (NorTex), University of North Texas Health Science Center, Fort Worth, TX, United States
| | - Richard A Young
- Family Medicine Residency Program, John Peter Smith Health Network, Fort Worth, TX, United States
| | - Z Noah Hendrix
- College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX, United States
| | - Kathryn M Daniel
- College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX, United States
| | - Kay Yut Chen
- College of Business, University of Texas at Arlington, Arlington, TX, United States
| | - Yuan Zhou
- College of Engineering, University of Texas at Arlington, Arlington, TX, United States
| | - Jennifer L Roye
- College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX, United States
| | - Ludmila Kosmari
- College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX, United States
| | - Joshua Wilson
- College of Liberal Arts, University of Texas at Arlington, Arlington, TX, United States
| | - Anna M Espinoza
- Department of Family Medicine and Osteopathic Manipulative Medicine and North Texas Primary Care Practice-Based Research Network (NorTex), University of North Texas Health Science Center, Fort Worth, TX, United States
| | - Kathleen M Sutcliffe
- Carey Business School, Johns Hopkins University, Baltimore, MD, United States
- School of Medicine, Johns Hopkins University, Baltimore, MD, United States
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States
- School of Nursing, Johns Hopkins University, Baltimore, MD, United States
| | - Samantha I Pitts
- School of Medicine, Johns Hopkins University, Baltimore, MD, United States
| | - Alicia I Arbaje
- School of Medicine, Johns Hopkins University, Baltimore, MD, United States
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States
| | - Michelle A Chui
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI, United States
| | - Somer Blair
- Office of Clinical Research, John Peter Smith Health Network, Fort Worth, TX, United States
| | - Dawn Sloan
- Family Medicine Residency Program, John Peter Smith Health Network, Fort Worth, TX, United States
| | - Masheika Jackson
- Family Medicine Residency Program, John Peter Smith Health Network, Fort Worth, TX, United States
| | - Ayse P Gurses
- School of Medicine, Johns Hopkins University, Baltimore, MD, United States
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States
- Whiting School of Engineering, Johns Hopkins University, Baltimore, MD, United States
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Meredith LS, Wong EC, Marx BP, Han B, Korn AR, Tobin JN, Cassells A, Williamson S, Franco M, Overa CC, Holder T, Lin TJ, Sloan DM. Design of a hybrid implementation effectiveness cluster randomized controlled trial of delivering written exposure therapy for PTSD in underserved primary care settings. Contemp Clin Trials 2024; 138:107435. [PMID: 38211725 PMCID: PMC11146292 DOI: 10.1016/j.cct.2024.107435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 12/28/2023] [Accepted: 01/07/2024] [Indexed: 01/13/2024]
Abstract
INTRODUCTION Posttraumatic stress disorder (PTSD) results in substantial costs to society. Prevalence of PTSD among adults is high, especially among those presenting to primary care settings. Evidence-based psychotherapies (EBPs) for PTSD are available but dissemination and implementation within primary care settings is challenging. Building Experience for Treating Trauma and Enhancing Resilience (BETTER) examines the effectiveness of integrating Written Exposure Therapy (WET) within primary care collaborative care management (CoCM). WET is a brief exposure-based treatment that has the potential to address many challenges of delivering PTSD EBPs within primary care settings. METHODS The study is a hybrid implementation effectiveness cluster-randomized controlled trial in which 12 Federally Qualified Health Centers (FQHCs) will be randomized to either CoCM plus WET (CoCM+WET) or CoCM only with 60 patients within each FQHC. The primary aim is to evaluate the effectiveness of CoCM+WET to improve PTSD and depression symptom severity. Secondary treatment outcomes are mental and physical health functioning. The second study aim is to examine implementation of WET within FQHCs using FQHC process data and staff interviews pre- and post-intervention. Exploratory aims are to examine potential moderators and mediators of the intervention. Assessments occur at baseline, and 3- and 12-month follow-up. CONCLUSION The study has the potential to impact practice and improve clinical and public health outcomes. By establishing the effectiveness and feasibility of delivering a brief trauma-focused EBP embedded within CoCM in primary care, the study aims to improve PTSD outcomes for underserved patients. TRIAL REGISTRATION (Clinicaltrials.govNCT05330442).
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Affiliation(s)
- Lisa S Meredith
- RAND Corporation, Santa Monica, CA, United States of America; VA HSR&D Center for Healthcare Innovation, Implementation & Policy, Sepulveda, CA, United States of America.
| | - Eunice C Wong
- RAND Corporation, Santa Monica, CA, United States of America
| | - Brian P Marx
- National Center for PTSD, Behavioral Science Division at VA Boston Healthcare, Boston, MA, United States of America; Boston University Chobanian & Avedisian School of Medicine, Boston, MA, United States of America
| | - Bing Han
- Kaiser Permanente Southern California, Department of Research & Evaluation, Pasadena, CA, United States of America
| | - Ariella R Korn
- RAND Corporation, Boston, MA 02116, United States of America
| | - Jonathan N Tobin
- Clinical Directors Network (CDN), New York, NY, United States of America; The Rockefeller University Center for Clinical and Translational Science, New York, NY, United States of America
| | - Andrea Cassells
- Clinical Directors Network (CDN), New York, NY, United States of America
| | | | - Meghan Franco
- Pardee RAND Graduate School, Santa Monica, CA, United States of America
| | - Cleo Clarize Overa
- Clinical Directors Network (CDN), New York, NY, United States of America
| | - Tameir Holder
- Clinical Directors Network (CDN), New York, NY, United States of America
| | - T J Lin
- Clinical Directors Network (CDN), New York, NY, United States of America
| | - Denise M Sloan
- National Center for PTSD, Behavioral Science Division at VA Boston Healthcare, Boston, MA, United States of America; Boston University Chobanian & Avedisian School of Medicine, Boston, MA, United States of America
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Godana G, Garoma S, Ayers N, Abera M. Effect of a school-linked life skills intervention on adolescents' sexual and reproductive health skills in Guji zone, Ethiopia (CRT)-A generalized linear model. Front Public Health 2023; 11:1203376. [PMID: 37937073 PMCID: PMC10626441 DOI: 10.3389/fpubh.2023.1203376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 09/18/2023] [Indexed: 11/09/2023] Open
Abstract
Background Although appropriate life skills are recognized as a fundamental right for adolescents and a critical component of health policy, they are often overlooked and rarely researched in pastoral communities. Life skills encompass the ability to adopt positive behaviors, which enable individuals to effectively deal with the demands and challenges of everyday life. This study aimed to evaluate the effectiveness of a school-linked life skills intervention program on adolescents' sexual and reproductive health skills in the pastoral community of Guji zone. Methods A two-arm cluster randomized control trial with a pretest-posttest experimental design was conducted, involving the intervention group (N = 375) and the control group (N = 384). This study assessed the effect of a school-linked adolescent-friendly life skills intervention in comparison to the usual RH curriculum, used as a control arm. Pretest-posttest and posttest-posttest scores of the control group and trial groups were compared, and the data were collected using 27 self-administered questions. The collected data were analyzed using paired-sample independent t-tests and a generalized linear model to examine the relationship between the dependent and independent variables. Results Data were collected from 759 adolescents in 15 intervention and 15 control clusters. The findings have shown that the proportion of mean life skills score was significantly higher in the intervention clusters than controls [(375) 70.49% vs. (384) 62.25%, P < 0.001 95% CI (0.06 and 0.1)]. Adolescents who were trained in school-linked life skills (β = 1.915, 95% CI: 1.411-2.418), were confident to make safe and informed decisions (β = 1.999, 95% CI: 1.562-2.436), and had life skills to deal with SRH issues (β = 1.66, 95% CI: 1.233-2.087) were significantly correlated with predicting the relevant life skills. The proportion of adolescents with SRH life skills increased from 384 (52%) at baseline to 375 (70%) at end line in the intervention group compared to 384 (60.31%) at baseline to 384 (62.31%) in control arms, respectively. Conclusions The implementation of a school-linked life skills intervention program proved to have a significant effect on SRH life skills development. Furthermore, individual-level and behavioral-level variables were significant in explaining variability in life skills development within the pastoral community. Therefore, we recommend scaling up this intervention in all high schools. Trial registration Trial registration PACTR202107905622610, registered on 16 July 2021.
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Affiliation(s)
- Gobena Godana
- School of Public Health, Department of Reproductive Health, Jimma University, Jimma, Ethiopia
- Federal Ministry of Health Ethiopia (Britain Origin), Addis Ababa, Ethiopia
| | - Silesh Garoma
- Adama Hospital Medical College, Department of Public Health, Adama, Ethiopia
| | - Nicola Ayers
- Federal Ministry of Health Ethiopia (Britain Origin), Addis Ababa, Ethiopia
| | - Muluembet Abera
- Dean School of Public Health, Jimma University, Jimma, Ethiopia
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Omotunde M, Agholme F, Böhling A, Huige N, Schweigel H, Hayder-Beichel D, Reidy R, Wagg A. A post-market cluster randomized controlled trial of the effect of the TENA SmartCare Change Indicator™ on urinary continence care efficiency and skin health in older nursing home residents. Trials 2023; 24:80. [PMID: 36737838 PMCID: PMC9895969 DOI: 10.1186/s13063-022-07031-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 12/16/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Urinary continence care for residents of nursing homes who are unable to communicate their toileting needs usually involves care aides manually checking continence products (pads) to determine the level of urine saturation prior to changing. The TENA SmartCare Change Indicator is a medical device which estimates urine saturation and notifies caregivers of the optimal time for pad changes. This study will seek to examine the effect of the TENA SmartCare Change Indicator on urinary continence care efficiency and skin health, in comparison to usual care. METHODS This cluster randomized controlled trial (NCT05247047) involving older nursing home residents with urinary incontinence unable to consistently indicate their toileting needs, and their care aides, will compare technology-based and usual continence care over a period of 8 weeks. Co-primary endpoints of superiority in continence care efficiency and non-inferiority in the maintenance of skin health will be assessed. Secondary outcomes will examine the resident quality of life, sleep quality, responsive behaviours, changes in pad use and leakage episodes outside the pad. Change in care aide work engagement, job satisfaction and rushed tasks will be assessed. Benefits and challenges with the use of the device for continence care will be identified from the perspectives of the care staff. DISCUSSION Urinary continence assessment and care in nursing homes is reported as suboptimal and threatening to dignity. Data on the utility and effect of technological solutions for improving urinary continence care are few and conflicting. If shown effective, this technological solution has the potential to improve the care for older residents and improve the working lives of caregiving staff who look after this most vulnerable section of the population. TRIAL REGISTRATION ClinicalTrials.gov NCT05247047. Registration date is Feb 18, 2022.
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Affiliation(s)
- Muyibat Omotunde
- grid.17089.370000 0001 2190 316XDivision of Geriatric Medicine, Department of Medicine, University of Alberta, Edmonton, AB Canada
| | - Fredrik Agholme
- grid.509222.eEssity Hygiene & Health AB, 405 03 Gothenburg, Sweden
| | - Arne Böhling
- Essity/BSN Medical GmbH, Schützenstraße 1-3, 22765 Hamburg, Germany
| | - Nicole Huige
- grid.509222.eEssity Hygiene & Health AB, 405 03 Gothenburg, Sweden
| | - Hardy Schweigel
- Essity/BSN Medical GmbH, Schützenstraße 1-3, 22761 Hamburg, Germany
| | - Daniela Hayder-Beichel
- Department of Health, Hochschule Neiderrhein-University of Applied Sciences, Reinarzstr 49, 47805 Krefeld, Germany
| | - Robert Reidy
- Staburo GmbH, Aschauer Strasse 26a, 81549 Munich, Germany
| | - Adrian Wagg
- grid.17089.370000 0001 2190 316XDivision of Geriatric Medicine, Department of Medicine, University of Alberta, Edmonton, AB Canada
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Katzmarzyk PT, Denstel KD, Martin CK, Newton RL, Apolzan JW, Mire EF, Horswell R, Johnson WD, Brown AW, Zhang D. Intraclass correlation coefficients for weight loss cluster randomized trials in primary care: The PROPEL trial. Clin Obes 2022; 12:e12524. [PMID: 35412010 PMCID: PMC9283264 DOI: 10.1111/cob.12524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/17/2022] [Accepted: 03/19/2022] [Indexed: 10/18/2022]
Abstract
The aim of this study was to compute intra-class correlations (ICCs) for weight-related and patient-reported outcomes in a cluster randomized clinical trial (cRCT) for weight loss. Baseline and follow-up data from the Promoting Successful Weight Loss in Primary Care in Louisiana (PROPEL) cRCT were used in this analysis. ICCs were computed for baseline and follow-up measures, and changes in body weight, cardiometabolic risk factors and health-related and weight-related quality of life at 6, 12, 18 and 24 months. Baseline ICCs ranged from 0 for PROMIS measures of anxiety and fatigue to 0.055 for total cholesterol (median = 0.019). The ICCs were higher for changes and decreased over time during follow-up. The ICCs for changes were highest in the pooled sample (intervention and usual care combined) followed by the intervention and usual care groups, respectively. The results demonstrated significant ICCs for several outcomes in a weight loss cRCT. The ICCs differed in magnitude depending on whether baseline versus longitudinal data were used, whether data were combined across treatment arms or were considered separately, and varied across the follow-up period. All these factors must be considered when choosing an ICC to inform sample size estimates for future weight loss cRCTs conducted in primary care settings.
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Affiliation(s)
| | - Kara D Denstel
- Pennington Biomedical Research Centre, Baton Rouge, LA, USA
| | - Corby K Martin
- Pennington Biomedical Research Centre, Baton Rouge, LA, USA
| | | | - John W Apolzan
- Pennington Biomedical Research Centre, Baton Rouge, LA, USA
| | - Emily F Mire
- Pennington Biomedical Research Centre, Baton Rouge, LA, USA
| | | | | | - Andrew W Brown
- Department of Applied Health Science, School of Public Health-Bloomington, Indiana University, Bloomington, IN, USA
| | - Dachuan Zhang
- Pennington Biomedical Research Centre, Baton Rouge, LA, USA
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Lee YL, Lim YMF, Law KB, Sivasampu S. Correction to: Intra-cluster correlation coefficients in primary care patients with type 2 diabetes and hypertension. Trials 2020; 21:778. [PMID: 32912297 PMCID: PMC7488537 DOI: 10.1186/s13063-020-04715-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yi Lin Lee
- Centre for Clinical Trial, Institute for Clinical Research, Ampang Hospital, Ministry of Health, Jalan Mewah Utara, Pandan Mewah, 68000, Ampang, Selangor, Malaysia.
| | - Yvonne Mei Fong Lim
- Centre for Clinical Outcome Research, Institute for Clinical Research, National Institute of Health, Ministry of Health, Kompleks Institut Kesihatan Negara (NIH), No. 1, Jalan Setia Murni U13/52, Seksyen U13, Setia Alam, 40170, Shah Alam, Selangor, Malaysia
| | - Kian Boon Law
- Centre for Clinical Trial, Institute for Clinical Research, Ampang Hospital, Ministry of Health, Jalan Mewah Utara, Pandan Mewah, 68000, Ampang, Selangor, Malaysia
| | - Sheamini Sivasampu
- Centre for Clinical Outcome Research, Institute for Clinical Research, National Institute of Health, Ministry of Health, Kompleks Institut Kesihatan Negara (NIH), No. 1, Jalan Setia Murni U13/52, Seksyen U13, Setia Alam, 40170, Shah Alam, Selangor, Malaysia
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