Can We Make Time for Physical Activity? Simulating Effects of Daily Physical Activity on Mortality

Figure 3

Joint relative risks of mortality: peak activities and hours sedentary. For this study, estimates of relative risk were primarily derived from the 1981 Canada Fitness Survey (CFS) augmented with a 12-year mortality followup on 17 013 respondents [12]. Secondary estimates, based on a 5-year mortality followup on more than 250,000 participants in the NIH-AARP Diet and Health Study [35], were used to further differentiate between levels of peak activity. These estimates have been rescaled so that the baseline hazard is population average risk, rather than that associated with the lowest activity category.