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NIDDK and Pennington calculator predictions for exercise interventions (E). NIDDK (A) and Pennington (B) model predictions (x-axis) versus actual observed weight changes for all studies (y-axis). Each individual point represents a treatment vs. control comparison; the solid lines are lines of best fit for slope and black dashed lines are 95% confidence intervals. Gray dashed lines are axes and lines of identity. Overall, predictions are an overestimate of observed weight change.
