Flow diagram of study search.

<p>This flow chart describes the number of studies that were involved in each step of the process of study selection, from the initial study search. After the application of inclusion and exclusion criteria, 44 studies met criteria and were included in the final analysis.</p

Outcomes stratified by the presence of maintenance.

<p>(Supporting forest plot in <a href="http://www.plosmedicine.org/article/info:doi/10.1371/journal.pmed.1002095#pmed.1002095.s010" target="_blank">S9 Fig</a>.)</p

Outcomes stratified by type of provider for delivery of the intervention.

<p>(Supporting forest plot in <a href="http://www.plosmedicine.org/article/info:doi/10.1371/journal.pmed.1002095#pmed.1002095.s009" target="_blank">S8 Fig</a>.)</p

Mean weight change of study participants.

<p>Analysis of all 48 intervention groups which reported weight change from baseline to end of follow-up period. Data was analyzed with Mix 2.0 using random effects method with the weighting of each study proportional to the inverse of the variance. Study weight is indicated by the size of the box, and horizontal lines indicate the 95% confidence interval. The red line indicates the overall weight change, and summary diamond indicates pooled estimate with reported mean (95% CI).</p

Comparison of outcomes from DPP versus Community Trials.

<p>Comparison of outcomes from DPP versus Community Trials.</p

Baseline characteristics of trials (aggregate) versus DPP.

<p>Baseline characteristics of trials (aggregate) versus DPP.</p