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Table 3 Comparison of potential risk factors for developing complications

From: Comparison of risk-scoring systems in the prediction of outcome after liver resection

Variable (median) CD 0–II (n = 130) CD III–V (n = 42) P value
Age (range) 69 (22–90) 70 (49–88) 0.47
Gender (%) 0.057
 Male 85 (65.4) 34 (81)
 Female 45 (34.6) 8 (19)
ASA (%) 0.187
 I–II 80 (61.5) 21 (50)
 III–IV 50 (38.5) 21 (50)
CCI (range) 4 (0–7) 5 (1–9) 0.021
Preoperative chemotherapy (%) 0.85
 Yes 46 (35.4) 16 (38.1)
 No 71 (54.6) 23 (54.8)
 Unknown 13 (10) 3 (7.1)
Number of segments resected (range) 3 (1–6) 4 (3–6) < 0.001
VO2 at AT (ml/kg/min, [range]) 12.8 (6.4–22.9) 12.5 (5.6–23.1) 0.84
VO2 peak (ml/kg/min, [range]) 18.8 (6.4–35.5) 19.2 (11.8–30.8) 0.65
Oxygen pulse (ml/beat, [range]) 11 (5–20.5) 12.3 (5–25.3) 0.39
Relative oxygen pulse (100 ml/beat/kg, [range]) 15 (7.8–26.6) 14.9 (10–24.5) 0.52
Resting heart rate (beats/min, [range]) 74 (39–115) 80 (43–119) 0.54
Peak heart rate (beats/min, [range]) 131.5 (79–180) 133.5 (85–172) 0.89
VEeqCO2 at AT (range) 29.1 (17.1–49.9) 31.7 (24.4–46.2) 0.005
  1. Univariate analysis of association of age, gender, diagnosis, ASA grade, CCI, preoperative chemotherapy, extent of resection and CPET values with Clavien-Dindo 0–II and III–V complications following 172 liver resections