Figure 1.
Hazard ratio for all cause mortality by quartiles of walking pace (min/mi, highest quartiles slowest pace) adjusted for age (age and age2).
Standard covariates include education, smoking status, daily intakes of alcohol, meat and fruit, aspirin use, and prior heart attack. Additional adjustment for walking energy expenditure where indicated. Significance levels for the risk reduction relative to being in the fastest (1th) quartile are coded: * P<0.05, † P<0.01, ‡ P<0.001, and § P<0.0001.