The number of cardiovascular disease (CVD) risk factors (including hypertension, diabetes, high cholesterol, tobacco use, family history) in subjects in the vigorous exercise and low exercise groups. The groups are divided into 0 to 1, 2 to 5 or greater than 5 risk factors. Those subjects in the vigorous exercise group have fewer CVD risk factors than those in the low exercise group
Figure 2: Number of CVD risk factors by exercise group.