Extended Data Figure 1: Activity and obesity data gathered with smartphones exhibit well established trends.
From: Large-scale physical activity data reveal worldwide activity inequality
Daily step counts are shown across age (a) and BMI groups (b) for all users. Error bars correspond to bootstrapped 95% confidence intervals. Observed trends in the dataset are consistent with previous findings; that is, activity decreases with increasing age1,8,31,32 and BMI8,15,31, and is lower in females than in males1,8,31,32,33.
