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Table 1 Baseline pre-operative and operative data of total study groups in patients who survive the first postoperative month after AVR

From: Obesity and the risk of late mortality after aortic valve replacement with small prosthesis

  BMI < 24 24 ≤ BMI ≤ 27.9 BMI ≥ 28
  n = 185 n = 94 n = 28
Age, y 56 ± 11.5 54 ± 14.7 57.8 ± 10.3
Sex (female),n (%) 116 (64.4) 44 (47.3)* 19 (67.8)†
Body surface area,m2 1.72 ± 0.32 1.78 ± 0.21* 1.86 ± 0.28*†
NYHA functional class, n (%)    
  III 85 (45.9) 36 (38.3) 13 (46.4)
  IV 66 (35.7) 28 (29.8) 8 (28.6)
LVEF, % 49.6 ± 9.2 52.7 ± 7.8 51.8 ± 8.1
Pathology, n (%)    
  Stenosis 64 (34.6) 26 (27.6) 8 (28.6)
  Insufficiency 20 (10.8) 12 (12.8) 6 (21.4)*†
  Mixed 101 (54.6) 56 (59.6) 14 (50)
Diabetes mellitus, n (%) 26 (14.1) 20 (21.2)* 8 (28.6)*†
Systemic hypertension, n (%) 41 (22.1) 28 (29.8)* 13 (46.4)*†
Chronic lung disease, n (%) 21 (11.4) 15 (15.9)* 6 (21.4)*†
AF, n (%) 75 (40.5) 28 (29.8)* 9 (32.7)*
Operative data    
  Concomitant CABG 30 (16.2) 18 (19.1)* 6 (21.4)*†
  EOAI,cm2/m2 1.07 ± 0.12 0.96 ± 0.08* 0.81 ± 0.05*†
  CPB time, min 100 ±31 104 ± 42 112 ± 28*†
  Mechanical prosthesis, % 126 (68.5) 54 (57.4) 16 (57.1)
  1. *significant difference from normal (BMI < 24) group; † significant difference from overweight (24 ≤ BMI ≤ 27.9) group.
  2. Abbreviations: AVR Aortic valve replacement, BMI Basic mass index, NS Not significant, NYHA New York Heart Association, LVEF Left ventricular eject fraction, AF Atrial fibrillation, CABG Coronary artery bypass graft, EOAI Effective orifice area index, CPB Cardiopulmonary bypass.