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Author Notes:

Dr Natasha P Sobers, natasha.sobers@cavehill.uwi.edu

Conceived the study background, aims, setting: NS, IRH, SH, SGA, LB-G, KL and TSF; Contributed data analysis tools: NS, IRH, SH and TF; Designing the analysis: NS, IRH and SH; Drafting and finalising the manuscript: NS, IRH, SH, SGA, LB-G, KL and TF.

We thank the leaders and members of the faith-based organisations that have been involved in the design of this study and look forward to the contribution of the volunteer members who have committed to assisting with screening blood pressure measurements and delivery of workshops.

Disclosure: None declared.


Research Funding:

This work is supported by Harvard T.H. Chan School of Public Health, Department of Global Health and Population, Bernard Lown Scholars in Cardiovascular Health Programme, grant number BLSCHP-2008 and the Appeal Fund of the George Alleyne Chronic Disease Research Centre, University of the West Indies which has not assigned a grant number.

Dr. Saria Hassan is supported by a grant from the National Heart, Lung and Blood Institute 5K23HL152368. Lown Scholar Funder Contact info: Michele Hudak, Senior Grant Manager,+1 617-998-6012 (p) mhudak@hsph.harvard.edu.


  • Science & Technology
  • Life Sciences & Biomedicine
  • Medicine, General & Internal
  • General & Internal Medicine
  • hypertension
  • public health
  • preventive medicine
  • clinical trials
  • CARE

Assessing the effectiveness and implementation of a chronic disease self-management programme in faith-based organisations in Barbados: protocol for a cluster randomised parallel trial

Journal Title:



Volume 11, Number 10


, Pages e050548-e050548

Type of Work:

Article | Final Publisher PDF


Introduction In the COVID-19 environment of reduced patient interaction with the healthcare system, evidenced-based self-care of chronic disease is vital. We will evaluate the effect of an online chronic disease self-management programme (CDSMP) plus medication adherence tools on systolic blood pressure (SBP) (primary aim) and, seek to understand the barriers and facilitators to implementation of this modified CDSMP in faith-based organisations (FBOs) (secondary aim). Methods We will conduct an unblinded cluster randomised trial in FBOs throughout Barbados. Eligibility: Persons ages 35-70 years; a previous diagnosis of hypertension or currently on antihypertensive therapy and the occurrence of two or more blood pressure readings above 130 mm Hg (systolic) or 80 mm Hg (diastolic) on the day of recruitment. Persons not known to have hypertension but who have two or more blood pressure readings at or above 130 mm Hg (systolic) or 80 mm Hg (diastolic) on two recruitment days at least 1 week apart will also be eligible. The unit of randomisation is a church cluster which consists of 7-9 churches. We will perform block randomisation to assign 24 clusters to intervention or control. The intervention has three components: modified CDSMP workshops, distribution of medication pill boxes and use of social media (WhatsApp V.2.0) to encourage medication adherence. Controls will receive one didactic lecture only. We will determine the mean changes in SBP levels for the intervention group versus controls and compare differences in outcomes 6 months' post intervention using mixed effects regression models. Ethics and dissemination This project has received ethical approval from the Institutional Review Board of the University of the West Indies in Barbados. Dissemination will use peer-reviewed publications, policy briefs to government and guidelines to leaders of FBOs. We aim to increase the proportion of patients with controlled hypertension and inform implementation of self-management programmes in small populations. Trail registration number NCT04437966

Copyright information:

© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an Open Access work distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (https://creativecommons.org/licenses/by-nc/4.0/rdf).
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