Fig. 5

Restricted cubic splines dose-response relationship between total physical activity level (PAL) and risk of type 2 diabetes. Dashed lines represent 95% CI and solid line represents hazard ratios for estimates obtained from regression of restricted cubic splines (5 knots.) PAL was truncated at 2.5 PAL and the reference set at 1.4 PAL. Pnon-linearity = 0.10