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Table 1 Characteristics of patients

From: Novel nomogram for predicting risk of early postoperative small bowel obstruction after right colectomy for cancer

Variables No EPSBO (n = 379) EPSBO (n = 45) P value
Age (years) 65 (57-72) 64 (61-66) 0.466
Gender    0.013
 Male 187 (85.8%) 31 (14.2%)  
 Female 192 (93.2%) 14 (6.8%)  
Anemia    0.117
 Yes 189 (87.1%) 28 (12.9%)  
 No 190 (91.8%) 17 (8.2%)  
Preoperative obstruction    0.356
 Yes 109 (91.6%) 10 (8.4%)  
 No 270 (88.5%) 35 (11.5%)  
Hypertension    0.779
 Yes 74 (90.2%) 8 (9.8%)  
 No 305 (89.2%) 37 (10.8%)  
Diabetes    0.623
 Yes 49 (87.5%) 7 (12.5%)  
 No 330 (89.7%) 38 (10.3%)  
BMI (kg/m2)    0.356
 ≤ 25 261 (88.5%) 34 (11.5%)  
 > 25 118 (91.5%) 11 (8.5%)  
Emergency operation    0.087
 Yes 29 (80.6%) 7 (19.4%)  
 No 350 (90.2%) 38 (9.8%)  
History of abdominal surgery    0.026
 Yes 47 (81.0%) 11 (19.0%)  
 No 332 (90.7%) 34 (9.3%)  
Surgical medial boundary    0.347
 SMV 316 (90.0%) 35 (10.0%)  
 SMA 63 (86.3%) 10 (13.7%)  
Neoadjuvant therapy    0.288
 Yes 8 (80.0%) 2 (20.0%)  
 No 371 (89.6%) 43 (10.4%)  
ASA score    0.676
 1 or 2 284 (89.0%) 35 (11.0%)  
 ≥ 3 95 (90.5%) 10 (9.5%)  
Type of surgery    0.365
 Standard 269 (90.3%) 29 (9.7%)  
 Extended 110 (87.3%) 16 (12.7%)  
Surgical approach    0.012
 Open 67 (81.7%) 15 (18.3%)  
 Laparoscopy 312 (91.2%) 30 (8.8%)  
Blood loss (mL) 60 (50–100) 50 (50–95) 0.461
Operative time (min) 150 (135–165) 155 (145–172) 0.002
Tumor diameter (cm) 5.0 (4.0–6.5) 4.1 (2.6–7.6) 0.159
Preoperative NLR 2.5 (1.7–3.9) 2.2 (1.5–3.1) 0.059
Preoperative albumin 39.1 (35.1–43.1) 37.2 (33.7–41.0) 0.029
Preoperative CEA 3.9 (2.1–13.1) 4.5 (4.0–6.0) 0.739
Pathological T stage    0.296
 T0–T2 37 (82.2%) 8 (17.8%)  
 T3–T4 342 (90.2%) 37 (9.8%)  
Pathological N stage    0.670
 N0 181 (88.7%) 23 (11.3%)  
 N1–N2 198 (90.0%) 22 (10.0%)  
Metastasis    0.768
 Yes 29 (87.9.%) 4 (12.1%)  
 No 350 (89.5%) 41 (10.5%)  
Anastomotic leakage    0.024
 Yes 22 (75.9.%) 7 (24.1%)  
 No 357 (90.4%) 38 (9.6%)  
Incision infection    0.979
 Yes 50 (89.3%) 6 (10.7%)  
 No 329 (89.4%) 39 (10.6%)  
  1. Data are presented as mean ± standard deviation or median (quartile 1, quartile 3)
  2. Abbreviations: BMI Body mass index, ASA American Society of Anesthesiologists, SMA Superior mesenteric artery, SMV Superior mesenteric vein