Peer Coaching to Support Weight Management in Primary Care: A Cluster Randomized Clinical Trial
Primary result · Adjusted mean weight changeResult — go to the resultDifference −1.72 kg- enrollment stopped early due to COVID-19 pandemic
- Enrollment stopped early due to the COVID-19 pandemic
Authors' conclusion
In this randomized clinical trial, a low- to moderate-intensity peer-coaching intervention did not result in greater weight loss at 12 months, but it improved attendance at weight management programs.
Study context
- Population
- Primary care patients with BMI ≥25 (overweight) or ≥30 (obesity) and their primary care physicians (PCPs), single US Department of Veteran Affairs site; mean age 50.6 years, 78.6% men, mean BMI 33.4
- Participants
- 281 patients20 PCPs
- Comparison
- Peer coaching vs enhanced usual care
- Primary endpoint
- Mean (SE) change in weight (kg)
- Follow-up
- 12 months
Methodological details2-arm, cluster randomized, single-centre
- 2-arm
- Cluster randomized
- Single-centre
Primary result
Adjusted mean weight change
Difference
−1.72 kg
P = 0.05
Change by group
Peer coaching
−2.51
mean · SE 0.73 · kg
Enhanced usual care (EUC)
−0.79
mean · SE 0.48 · kg
As reported in the abstract
Secondary outcomes
Mean
| Outcome | Peer coaching | EUC | Difference (percentage points) | P value |
|---|---|---|---|---|
| Proportion losing ≥5% of body weight (adjusted mean) · 6 monthsSE 5.22 | 16.68% (SE 0.47%) | 5.50% (SE 0.32%) | 11.18 | P = 0.03 |
| Proportion attending a weight management program (adjusted mean) · 6 monthsSE 6.45 | 28.68% (SE 5.37%) | 13.32% (SE 3.38%) | 15.37 | P = 0.02 |
Original publication
Peer Coaching to Support Weight Management in Primary Care: A Cluster Randomized Clinical Trial. JAMA Netw Open. Published 2 September 2025. doi:10.
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