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Table 3 Univariate analysis of possible predictors for postoperative complications following radical gastrectomy for gastric cancer (n = 2469)

From: The effect of preoperative smoking cessation and smoking dose on postoperative complications following radical gastrectomy for gastric cancer: a retrospective study of 2469 patients

Variables Complications (n = 225) Non-complications (n = 2244) P value
Sex (male/female) 165/60 1459/785 0.012
Age (years) ≥ 65/< 65 64/161 451/1793 0.003
Body mass index (kg/m2) ≥ 25/< 25 41/184 310/1934 0.071
Smoking history; yes/no 119/106 937/1307 0.001
ASA score ≥ 3/< 3 44/181 222/2022 < 0.001
Abdominal surgical history; yes/no 31/194 231/2013 0.106
Comorbidity; yes/no 87/138 650/1594 0.002
Chronic obstructive pulmonary disease 12/213 69/2175 0.070
Preoperative albumin (g/L) ≥35/< 35 151/74 1783/461 < 0.001
Complication due to the tumor a; yes/no 69/156 465/1779 0.001
Operation method; open/laparoscopy 185/40 1719/525 0.056
Extent of gastric resection; subtotal/total 158/67 1730/514 0.021
Extent of lymph node dissection ≥ D2/< D2 213/12 2108/136 0.661
Combined multi-organ resection; yes/no 43/182 177/2067 < 0.001
Operation time (min) ≥ 240/< 240 87/138 447/1797 < 0.001
Intra-operative blood loss (mL) ≥ 300/< 300 59/166 435/1809 0.015
Lymph node metastasis; positive/negative 154/71 1346/898 0.013
pTNM stage b; III/I-II 135/90 1142/1102 0.009
Perioperative blood transfusion; yes/no 96/129 409/1835 < 0.001
  1. ASA American Society of Anesthesiologist
  2. aIncluding pyloric obstruction or bleeding
  3. bTumor stages are based on the 8th edition of AJCC TNM classification