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How effective are church-based weight-loss interventions among Black adults? A systematic review
Lovoria B Williams1, Bassema Abu Farsakh1, Erika R Karle1
1College of Nursing, University of Kentucky, Lexington, Kentucky, USA.
Objective:
Churches are frequently used to reach Black adults to effect weight loss. However, there has been no recent review, to our knowledge, inclusive of solely Black adults in church settings. We sought to comprehensively examine the methodological approaches and weight-loss outcomes of church-based weight-loss lifestyle interventions conducted among Black adults to provide insights on literature gaps and offer suggestions for future research.
Methods:
Google Scholar, PubMed, and CINAHL (Cumulative Index to Nursing and Allied Health Literature) were searched for trials conducted in churches that reported weight outcomes at any time point. The Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guided manuscript development.
Results:
A total of 15 studies (N = 2285) from 2007 to 2023 met inclusion criteria, and 33% were high-quality randomized trials. The majority were pilot studies (60%) conducted in the Southern United States. Most reported significant postintervention weight loss. The follow-up time points varied from 2 to 12 months. Methodological approaches included the following: cultural adaptations (93%); theory-guided (93%); delivered by community health workers (80%); and delivered in person in a group format (100%). Only one study offered individual-level attention beyond texts/emails. Most participants were well-educated female individuals.
Conclusions:
Weight-loss interventions among Black church settings effect statistically significant weight loss, albeit in a small way. Limitations include pilot studies and small samples. More rigorously designed studies are warranted.
