Figure 2

Tenth survival percentile differences as function of total physical activity among younger (<60) and older (> = 60) participants. Data were fitted using a Laplace regression model with restricted cubic splines with 3 knots (36, 41 and 48 MET-hrs/day) of the distribution of total physical activity. The estimates were adjusted for baseline age, body mass index, alcohol consumption, smoking status, and educational level. The reference value of total physical activity is the median of the bottom quartile (36.5 MET-hrs/day).