ening rates were higher in the United States than in Canada at all ages, which is puzzling given the existence of Canada's universal health care system. Multivariate analyses revealed that whether a woman had had a mammogram within the last 2 years (when predicting last Pap test) or had had a Pap test within the last 3 years (when predicting last mammogram) were the strongest and most consistent predictors of compliance in both countries. Race/ethnicity, nativity, marital status, socioeconomic s