... variables The variables in "Level 0" and "Level 1" are independent variables for "Level 2", and the variables in "Level 0, and 2" are independent for "Level 3", and so on Thus, all variables in previous ... analysis and in drafting the manuscript, ON coordinated the study at the hospital and participated in data collection, and in drafting the manuscript, BRH and AKW participated in planning and designing ... admitted for elective coronary angiography The mean (SD) age for women was 63 (10.4) years and for men 61.3 (10.1) years Angiographic CAD was found in a majority (81%) of the patients, and was...