Baseline characteristics of participants with incident CHD (cases) and matched* controls among women (Nurses' Health Study) and men (Health Professionals Follow-up Study)†

*Matched on age, smoking status, date of blood drawing, and fasting status (women only)†Values are least square mean ± standard error for continuous variables and proportions for categorical variables, except for CRP, which is shown as log-transformed geometric mean and 95% confidence interval‡P for difference between cases and controls by matching factor-adjusted t-Test for rows with means, and by Chi-Square Test for rows with proportions§Race unknown in 10 cases and 21 controls (HPFS); 18 cases and 16 controls (NHS)