Table 2 Univariate and multivariate analyses for risk factors of EPSBO after right colectomy

Age (years)

0.552

Gender

Male or female

0.015

2.426 (1.191–4.941)

0.015

Anemia

Present vs absent

0.120

Preoperative obstruction

Present vs absent

0.358

Hypertension

Present vs absent

0.779

Diabetes

Present vs absent

0.623

BMI (kg/m2)

> 25 vs ≤ 25

0.358

Emergency operation

Present vs absent

0.079

1.458 (0.548–3.883)

0.450

History of abdominal surgery

Present vs absent

0.030

1.946 (0.858–4.413)

0.111

Neoadjuvant therapy

Present vs absent

0.341

ASA score

1 or 2 vs ≥ 3

0.676

Type of surgery

Standard vs extended

0.366

Surgical medial boundary

SMV vs SMA

0.349

Surgical approach

Open vs laparoscopy

0.014

2.181 (1.045–4.554)

0.038

Blood loss (ml)

0.389

Operative time (min)

< 0.001

1.026 (1.010–1.043)

0.002

Tumor diameter (cm)

0.277

Preoperative NLR

0.235

Preoperative albumin

0.038

0.945 (0.888–1.006)

0.074

Preoperative CEA

0.382

Pathological T stage

T0–T2 vs T3–T4

0.105

Pathological N stage

N0 vs N1–N2

0.874

Metastasis

Present vs absent

0.919

Anastomotic leakage

Present vs absent

0.019

3.094 (1.142–8.377)

0.026

Incision infection

Present vs absent

0.979