Figure 1: Longitudinal trajectories of weight among women age 15+.
From: Health costs of reproduction are minimal despite high fertility, mortality and subsistence lifestyle

Women with (a) sustained weight decline, or oscillations with mean decrease >0.3 standard deviations (SD); (b) sustained weight gain, or oscillations with mean increase >0.3 SD; (c) oscillations with mean increase or decrease <0.3 SD.