Behavioral dynamics of social propagation for weight loss: Evidence from a randomized controlled trial in a low-income Appalachian community
Fig 2
A. Net R0(Loss-Gain) calculation: For a given threshold, subjects are classified as gained, lost or neutral; OLS regression is done for each of the corresponding pairwise transitions; and those not involving gained (lost) are combined to yield R0,l (R0,g); the difference of which yields Net R0(Loss-Gain) at each weight change threshold.
B. This procedure is separately applied to treatment and control subjects, respectively yielding R0,A and R0,C; the difference of which, divided by the absolute value of the latter, yields Rc; which is then numerically integrated with respect to the histogram of (all subjects’) weight changes to yield , e.g., in case q = 90, up to the 90th percentile.