Article Text
Abstract
Introduction Cardiovascular disease (CVD) prevention guidelines recommend lifetime risk stratification for primary prevention of CVD, but no such risk stratification has been performed in India to date.
Methods We estimated short-term and lifetime predicted CVD risk among 10 054 disease free, adult Indians in the age group of 20-69 years who participated in a nationwide risk factor surveillance study. The study population was then stratified into high short-term (≥10% 10-year risk or diabetes), low short-term (<10%)/high lifetime and low short-term/low lifetime CVD risk groups.
Results The mean age (SD) of the study population (men=63%) was 40.8+10.9 years. High short-term risk for coronary heart disease was prevalent in more than one fifth of the population (23.5%, 95% CI 22.7 to 24.4). Nearly half of individuals with low short-term predicted risk (48.2%, 95% CI 47.1 to 49.3) had a high predicted lifetime risk for CVD. While the proportion of individuals with all optimal risk factors was 15.3% (95% CI 14.6 to 16.0), it was 20.6% (95% CI 18.7 to 22.6) and 8.8% (95% CI 7.7 to 10.5) in the highest and lowest educational groups, respectively.
Conclusion Approximately 1 in 2 men and 3 in 4 women in India had low short-term predicted risks for CVD in this national study, based on aggregate risk factor burden. However, 2 in 3 men and 1 in 2 women had high lifetime predicted risks for CVD, highlighting a key limitation of short-term risk stratification.