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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