Fig. 5.

The effect of daily sitting time on all-cause mortality in 17,013 male and female Canadians 18–90 year of age. The amount of time participants spent sitting during work, school and housework was obtained from the 1981 Canada Fitness Survey and categorized as (1) almost none of the time, (2) approximately one-fourth of the time, (3) approximately half of the time, (4) approximately three-fourths of the time, or (5) almost all of the time. Mortality was assessed from Canadian Mortality Database records for the years 1981–1993 and represented as multivariate hazard ratios adjusted for age, smoking, alcohol consumption, leisure time physical activity and Physical Activity Readiness Questionnaire. Graph created from data contained in Table 3, Katzmarzyk et al. (2009)