Baseline characteristics of participants regarding medical history, risk factors and medications¹.

1 Missing values: Cotinine: n = 3 (0.2%), β-blocker: n = 1 (0.1%); Fasting: n = 74 (5.4%); Hypercholesterolemia: n = 81 (5.9%); Troponin T: n = 170 (12.4%). ACE, angiotensin converting enzyme. 2P values for differences between smokers and non-smokers were calculated by using Mann-Whitney U test for continuous variables and chi-square tests for categorical variables. 3 n (%). 4 Median (25th, 75th percentile). 5 Serum total cholesterol ≥ 6.5mmol/L. 6 Includes diabetes types 1 and 2. 7 Medication prior to coronary angiography. Baseline characteristics of participants regarding medical history, risk factors and medications1.