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

Table 1

% Mean squared error by source: excess total deaths and change in life expectancy.

Source	Excess total deaths	Change in life expectancy
Sampling variability	48.6	53.1
Regression variance	0.6	0.6
Mortality RR variance	0.1	0.1
Rounded reported ages	0.5	4.5
Heterogeneous activity profiles	50.2	41.8