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Table 2 Demographic characteristics and perioperative variables of the entire study population

From: Skeletonisation contributing to a reduction of sternal wound complications: a retrospective study in OPCAB patients

Variable Non-skeletonized (n = 1487) Skeletonized (n = 413) P
Age 67.8 ± 9.79 68.0 ± 9.14 0.956
Male gender 1201 (80.77) 333 (80.63) 0.950
BMI 26.9 ± 4.28 27.2 ± 4.49 0.899
BMI group
  < 25 393 (28.23) 119 (29.10) 0.752
 25–29 663 (47.63) 188 (45.97)  
 30–34 274 (19.68) 79 (19.32)  
  > 34 62 (4.45) 23 (5.62)  
Urgent surgery 703 (47.28) 210 (50.85) 0.199
Diabetes mellitus
 0 1073 (72.16) 272 (65.86) 0.015
 1 40 (2.69) 7 (1.69)  
 2 241 (16.21) 92 (22.28)  
 3 133 (8.94) 42 (10.17)  
Oral corticosteroids 126 (8.47) 26 (6.30) 0.149
Transplantation 11 (3.09) 6 (1.45) 0.173
Renal insufficiency 46 (3.09) 18 (4.36) 0.208
COPD 90 (6.05) 27 (6.54) 0.717
BIMA 944 (63.48) 228 (55.21) 0.002
  1. BMI Body mass index, COPD chronic obstructive pulmonary disease, BIMA bilateral internal mammary artery bypass grafting
  2. Values are presented as mean ± SD or n (%)
  3. P < 0.05 was considered significant