Kim 2008.
Methods |
Study design: controlled before‐after Sampling frame: 4 rural African American Churches Sampling method: non‐random (2 churches assigned to treatment) Collection method: physical measurement Description of the community coalition: Coalition included 4 churches, non‐profit community‐based organizations, and University of North Carolina investigators |
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Participants |
Communities: rural North Carolina Country: USA Ages included in assessment: mean age 56 (SD 15.8) Reasons provided for selection of intervention community: rural African American at‐risk population Intervention community (population size): unknown Comparison community (population size): unknown |
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Interventions |
Name of intervention: Wholeness, Oneness, Righteousness, Deliverance (WORD) Theory: Stages of Change, Social Cognitive Theory, Social Support Aim: weight loss Description of costs and resources: not reported Components of the intervention: trained lay health leader in four 2.5‐hour training sessions to lead weekly small group sessions over 8 weeks as treatment (n = 61) Start date: unknown Duration: 2 months |
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Outcomes |
Outcomes and measures: mean weight loss (standard error) controlling for baseline BMI, education, and age Time points: baseline and 2‐month follow‐up |
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Notes | Funding source: coalition partners | |
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | High risk | Not randomly assigned |
Allocation concealment (selection bias) | High risk | Not randomly assigned |
Baseline outcome measurement similar | Low risk | Physical measurement |
Baseline characteristics similar | High risk | Reported differences at baseline |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Not blinded |
Incomplete outcome data (attrition bias) All outcomes | Low risk | 20% attrition |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Not randomly assigned |
Protection against contamination | Unclear risk | Possibility of contamination not described |
Selective reporting (reporting bias) | Low risk | Relevant outcome reported |
Other bias | High risk | Small sample size, short follow‐up period |