Abstract
Studies show a relationship between oral inflammatory processes and cardiovascular risk factors, suggesting that dental care may reduce the risk of cardiovascular disease (CVD) events. However, due to the differences between men and women in the development and presentation of CVD, such effects may vary by sex. We use a valid set of instrumental variables to evaluate these issues and include a test of essential heterogeneity. CVD events include new occurrences of heart attack (including death from heart attack), stroke (including death from stroke), angina, and congestive heart failure. Controls include age, race, education, marital status, foreign birthplace, and cardiovascular risk factors (health status, body mass index, alcohol use, smoking status, diabetes status, high-blood-pressure status, physical activity, and depression). Our analysis finds no evidence of essential heterogeneity. We find the minimum average treatment effect for women to be -0.01, but find no treatment effect for men. This suggests that women who receive dental care may reduce their risk of future CVD events by at least one-third. The findings may only apply to married middle-aged and older individuals as the data set is only representative for this group.
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