Fig. 3
Restricted cubic splines dose-response relationship between occupational physical activity 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.) Occupational physical activity was truncated at 250 MET-hrs/wk. and reference set at 60 MET-hours per week. Pnon-linearity = 0.84
