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Table 3 Patient postoperative course data a

From: Is laparoscopic colorectal cancer surgery associated with an increased risk in obese patients? A retrospective study from China

  Nonobese (<25.0 kg/m2) ( N= 371) Obese I (25.0 to29.9 kg/m2) ( N= 142) Obese II (≥30 kg/m2) ( N= 14) P-value
Overall postoperative complications, n (%) 112(30.2%) 46(32.4%) 6(42.9%) 0.561
Total grade I, n (%) 18(4.9%) 8(5.6%) 0 0.533
Wound infection, n 13 5 0  
Wound dehiscence, n 5 3 0  
Total grade II, n (%) 72(19.4%) 30(21.1%) 4(28.6%) 0.661
Pyrexia of unknown origin, n 17 6 1  
Urinary infection, n 6 5 1  
Septicemia, n 2 1 0  
Cerebral infarction, n 1 0 0  
Postoperative hypertension, n 4 1 0  
Anastomotic leak (treated conservatively), n 11 4 0  
Pneumonia, n 4 1 0  
Ileus (treated conservatively), n 7 5 1  
Chyle leakage, n 2 2 0  
Deep vein thrombosis, n 2 0 0  
Atelectasis, n 1 0 0  
Delirium, n 2 0 0  
Urinary retention, n 6 2 0  
Arrhythmia, n 3 0 0  
Neutropenia, n 1 0 0  
Intraperitoneal hemorrhage (necessitating transfusion), n 2 1 0  
Respiratory infection, n 1 2 1  
Total grade III, n (%) 19(5.1%) 5(3.5%) 2(14.3%) 0.178
Wound dehiscence (necessitating stitch), n 5 3 2  
Pneumothorax, n 1 0 0  
Anastomotic bleeding (endoscopic treatment), n 5 0 0  
Anastomotic leak (necessitating reoperation), n 5 1 0  
Anastomotic ischemia (necessitating reoperation), n 2 0 0  
Intraperitoneal hemorrhage (necessitating reoperation), n 1 1 0  
Total grade IV, n (%) 2(0.5%) 2(1.4%) 0 0.378
Respiratory failure, n 2 1 0  
Cardiac failure, n 0 1 0  
Total grade V, n (%) 1(0.3%) 1(0.7%) 0 0.505
Urinary catheter out b , days 3(0 to 52) 4(1 to 21) 4(1–14) 0.269
Start fluid intake b , days 3(1 to 47) 3(1 to 20) 3 .5(1–10) 0.774
Length of postoperative hospitalization b , days 10(3 to 102) 11(6 to 84) 11.5(7–33) 0.353
  1. aAnastomotic leak: Discharge of colon or rectum content via the drain, wound or abnormal orifice; Grade: Graded according to the Clavien-Dindo Classification of Surgical Complications; Ileus: Need for a nasogastric tube because of postoperative nausea, vomiting and abdominal distention or delayed oral intake for more than 5 days after surgery; Pyrexia of unknown origin: Any temperature above 37°C for more than 24 hours occurring after original pyrexia following surgery settled, for which no obvious cause was found; Respiratory failure: Respiratory difficulty requiring emergent ventilation; Septicemia: Positive blood culture; Urinary infection: Presence of >105 bacteria/ml with the presence of white cells in the urine after previously clear urine; Wound dehiscence: Superficial or deep wound breakdown; Wound infection: Wound cellulitis or discharge of purulent exudates. bData are presented as median (range) unless otherwise indicated.