Baseline characteristics of the study population according to CAD classification. SteinerCarine OthmanAlaa H. SaelyChristoph ReinPhilipp DrexelHeinz EckardsteinArnold von M. RentschKatharina 2011 a<p>The Mann-Whitney U test was used to test quantitative variables and the Chi-square test was used to test qualitative variables.</p><p>*8 missing values (4 in CAD free controls and 4 in CAD patients).</p>