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Table 2 Demographic characteristics and perioperative variables

From: Hemoglobin A1c and preoperative glycemia as a decision tool to help minimise sternal wound complications: a retrospective study in OPCAB patients

Variable All (n = 1774) Non-diabetes (n = 1316) Diabetes (n = 458) P
Age, years 67.9 ± 9.65 68.0 ± 9.84 67.3 ± 9.09 0.068
Male gender 1433 (80.78) 1075 (81.69) 358 (78.17) 0.100
BMI, kg/m2 26.9 ± 4.33 26.6 ± 4.04 27.9 ± 4.93 < 0.001
BMI group
  < 25 486 (28.86) 390 (31.3) 96(21.9) < 0.001
 25–29 789 (46.85) 593 (47.6) 196 (44.7)  
 30–34 331 (19.66) 220 (17.7) 111 (25.3)  
  > 34 78 (4.63) 42 (3.37) 36 (8.20)  
Urgent surgery 864 (48.70) 630 (47.87) 234 (51.09) 0.235
Oral corticosteroids 145 (8.17) 103 (7.83) 42 (9.17) 0.366
Transplantation 16 (0.90) 8 (0.61) 8 (1.75) 0.026
COPD 110 (6.20) 78 (5.93) 32 (6.99) 0.418
Skeletonisation 384 (21.65) 271 (20.59) 113 (24.67) 0.068
BIMA 1096 (61.78) 845 (64.21) 251 (54.80) < 0.001
HbA1c (%) / 5.80 ± 0.79a 6.91 ± 1.22 < 0.001
Glycemia (mg/dL) 107.0 ± 24.3 107.0 ± 24.3 131.3 ± 40.3 < 0.001
  1. BMI Body mass index, COPD chronic obstructive pulmonary disease, BIMA bilateral internal mammary artery bypass grafting
  2. adata from 129 non-diabetes patients
  3. Values are presented as mean ± SD or n (%)
  4. P < 0.05 was considered significant