Fig. 1

a, b, c and d: Path diagram of the association of socioeconomic status (SES) with change in body mass index (BMI) via baseline (b) and change (^∆) in moderate-vigorous physical activity (MVPA) (a) and via sitting time^b∆ (b); and the association of baseline SES with change in waist circumference (WC) via MVPA ^b∆ (c) and sitting time ^b∆ (d)