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Table 2 Baseline characteristics of BIMA patients stratified by gender, body mass index, and diabetes

From: Lessons learned from the use of 1,977 in-situ bilateral internal mammary arteries: a retrospective study

Variable (% unless otherwise indicated) Male Female   BMI > 30 BMI ≤ 30   Diabetes no insulin No Diabetes  
n = 1,761 n = 216 pvalue n = 402 n = 1,575 pvalue n = 193 n = 1,734 pvalue
Age (mean year ± SD) 55.0 ± 8.1 59.2 ± 11.5 <0.0001 54.3 ± 9.3 55.8 ± 8.4 0.002 57.4 ± 8.7 55.2 ± 8.5 0.0006
Female --- --- --- 11.2 10.9 0.86 9.3 10.8 0.62
BMI (mean kg/m2 ± SD) 27.3 ± 3.7 26.8 ± 4.1 0.09 32.6 ± 2.3 25.9 ± 2.6 <0.0001 28.7 ± 4.1 27.1 ± 3.6 <0.0001
Diabetes 12.2 13.4 0.59 18.7 10.7 <0.0001 --- --- ---
Insulin-dependent 18.5 16.2 0.43 20.6 21.0 1.0 --- --- ---
Renal failure 3.5 2.8 0.84 3.0 3.5 0.76 3.6 3.2 0.67
Previous MI 51.5 45.9 0.06 48.3 51.1 0.34 49.5 51.0 0.08
Hypertension 59.7 69.0 0.01 57.7 47.2 <0.001 65.8 68.9 0.15
Active smoking 32.4 30.7 0.64 29.3 32.4 0.12 28.3 32.5 0.06
COPD 6.4 4.6 0.37 6.0 6.3 0.9 7.3 6.1 0.53
Peripheral vascular disease 8.1 10.2 0.09 6.5 9.6 0.05 11.4 8.0 0.13
Previous stroke 2.9 5.1 0.09 3.2 3.1 0.87 2.6 3.2 0.83
LVEF ≤ 35% 3.8 4.8 0.45 3.6 4.0 0.88 4.2 3.6 0.68
CHF NYHA class III or IV 16.8 18.0 0.09 19.9 17.6 0.31 20.5 17.6 0.32
Atrial fibrillation 1.5 1.4 1.00 2.0 1.4 3.37 2.1 1.4 0.56
Three-vessel disease 59.2 54.6 0.21 59.2 58.6 0.86 62.7 58.2 0.25
  1. BIMA bilateral internal mammary artery, CPB Cardiopulmonary bypass, CHF congestive heart failure, COPD chronic obstructive pulmonary disease, IMA internal mammary artery, LVEF left ventricular ejection fraction, MI myocardial infarction, NYHA New York Heart Association, SD standard deviation.