We grouped the study participants into quintiles of total METs. We used logistic regression to assess the odds ratios (ORs) of successful survival vs usual survival associated with each quintile, defining the lowest quintile as the reference level. In multivariate logistic regression models, we adjusted for variables defined in 1986, including age at baseline (in years); education (registered nurse, bachelor's degree, master's degree, or doctorate); marital status (unmarried, married, widow, separated, or divorced); if married, husband's education (less than high school, some high school, high school graduate, college graduate, or graduate school); postmenopausal hormone use (never, past, or current use); smoking status (never, past, current 1-14 cigarettes/d, current 15-24 cigarettes/d, or current ≥25 cigarettes/d); family history of heart disease, diabetes, or cancer (yes or no); dietary polyunsaturated to saturated fat ratio (in quintiles); intakes of trans fat, alcohol, and cereal fiber (all in quintiles); and intakes of fruits and vegetables and red meat (in tertiles). Since moderate-intensity physical activity such as walking was associated with lower risk of chronic diseases in previous studies by our research group,8,10 we further examined walking METs and pace in relation to successful survival in the present study. When examining the associations for walking MET quintiles, we further adjusted for vigorous activity METs to minimize potential confounding by vigorous physical activity. Similarly, when we examined the associations for walking pace, we further controlled for total METs.