Extended Data Figure 6: Activity inequality is a better predictor of obesity than the average activity level.
From: Large-scale physical activity data reveal worldwide activity inequality
a, Obesity is significantly correlated with the average number of daily steps in each country (LOESS fit; R2 = 0.47). b, However, activity inequality is the better predictor of obesity (LOESS fit; R2 = 0.64). The difference is significant according to Steiger’s Z-test (P < 0.01; Methods). This shows that there is value to measuring and modelling physical activity across countries beyond average activity levels. Activity inequality captures the variance of the distribution; that is, how many activity-rich and activity-poor people there are, allowing for better prediction of obesity levels. Panel b is repeated from Fig. 2a for comparison.
