Stratified descriptive statistics by gender and smoking for the discovery cohort (Genetic Epidemiology Network of Arteriopathy Study, GENOA) and the replication cohort (Framingham Heart Study).

CAC, coronary artery calcification; LDL-C, Low Density Lipoprotein-Cholesterol; BMI, body mass index.aFor categorical variables, the number and percent are presented (Chi-square P-values).bFor continuous variables, the mean and standard deviation are presented (t-test P-values).