Skip to main content

Table 5 Demographic characteristics of patients and postoperative functional recovery before matching

From: Comparison of prolonged postoperative ileus between laparoscopic right and left colectomy under enhanced recovery after surgery: a propensity score matching analysis

Variable LC (n=598) RC (n=272) t/χ2 p value
Sex    4.073 0.044
 Male 373 150   
 Female 225 122   
Age (years) 55.8±11.7 58.8±12.7 − 3.458 0.001
Diabetes mellitus    0.204 0.652
 No 405 180   
 Yes 193 92   
Hypertension    0.672 0.412
 No 406 177   
 Yes 192 95   
Smoking habit    0.212 0.645
 Nonsmoker 442 197   
 Smoker 156 75   
Current alcohol use    0.846 0.358
 No 423 184   
 Yes 175 88   
Previous abdominal surgery    0.093 0.760
 No 512 235   
 Yes 86 37   
Chronic obstructive pulmonary disease    0.064 0.801
 No 529 239   
 Yes 69 33   
BMI (kg/m2) 23.3±3.2 22.7±2.7 2.416 0.016
Preoperative anemia    1.826 0.177
 No 444 190   
 Yes 154 82   
Preoperative serum albumin level 39.1±4.5 38.1±4.4 3.055 0.002
ASA    0.725 0.395
 I–II 443 194   
 ≥III 155 78   
Tumor size    0.387 0.534
 <5 cm 306 133   
 ≥5 cm 292 139   
Operation time (min)    5.744 0.017
 <180 273 148   
 ≥180 325 124   
Blood loss (ml) 168.9±76.2 174.7±79.1 − 1.039 0.299
Grade of differentiation    12.860 0.002
 Well 92 49   
 Moderate 355 127   
 Poorly 151 96   
Lymph node resected 23.9±9.6 24.9±9.4 -1.527 0.127
pTNM stage    3.808 0.149
 I 103 44   
 II 262 138   
 III 233 90   
PPOI    19.470 0.000
 No 540 216   
 Yes 58 56   
First flatus 2.1±1.8 3.5±2.4 − 9.379 0.000
First semi-liquid diet 3.6±1.8 5.0±2.5 − 9.765 0.000
Length of stay 6.2±1.4 7.6±2.3 − 9.674 0.000
  1. LC left colectomy, RC right colectomy, BMI body mass index, ASA American Society of Anesthesiologists, PPOI prolonged postoperative ileus