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. 2019 Nov 1;2(11):e1914393. doi: 10.1001/jamanetworkopen.2019.14393

Figure 2. Mean Percentage Weight Change by Group From Entry Into Weight Management Program Over Time.

Figure 2.

Month 0 indicates randomization. Mean weight changes were not different between the incentive (n = 128) vs active control (n = 130) groups at month 6 (mean difference, 0.7 kg; 95% CI, −0.7 to 2.2 kg; unequal-variance t test, P = .30) or month 12 (mean difference, 0.8 kg; 95% CI, −1.2 to 2.8 kg; unequal-variance t test, P = .41). P values were based on all participants, with multiple imputation to fill in the missing data at 6 months (n = 8) and 12 months (n = 31).