Skip to main content

Table 2 Univariate analysis to evaluate the risk factors for postoperative perineal hernia

From: Retrospective analysis of risk factors for postoperative perineal hernia after endoscopic abdominoperineal excision for rectal cancer

Parameters

OR (95% CI)

p value

Patient-related variables

 Age

1.016 (0.974–1.059)

0.467

 Sex

  Male/Female

0.5789 (0.1962–1.7081)

0.325

 BMI*

1.0009 (0.8558–1.1706)

0.991

 ASA-PS**

  1/2

2.3333 (0.6916–7.8719)

0.172

  1/3

2.0000 (0.1662–24.0689)

0.585

  2/3

0.8571 (0.0816–9.0087)

0.898

Tumor-related variables

 Depth of the tumor

  < pT2/> pT3

0.7846 (0.2575–2.3901)

0.67

 Maximum diameter of tumor (mm)

0.9975 (0.9821–1.0132)

0.746

 Site of inferior margin of the tumor

  Rectum/Anal canal

1.5479 (0.4533–5.5003)

0.473

 Simultaneous distant metastasis

0.4444 (0.0500–3.9522)

0.467

Therapeutic variables

 Preoperative therapy

  Total

1.6667 (0.5475–5.074)

0.369

  NCRT***

2.6133 (0.6214–10.9901)

0.19

  Systemic chemotherapy

1.0424 (0.2880–3.774)

0.95

 Surgical approach

  Endoscopic/Robot

0.5556 (0.1175–2.6277)

0.459

  Endoscopic/Trans-perineal

1.1667 (0.2166–6.2840)

0.858

  Robot/Trans-perineal

2.100 (0.2507–17.5941)

0.494

 Multivisceral resection

2.344 (0.4735–11.6006)

0.297

 Lateral pelvic lymphnode dissection

0.8357 (0.2934–2.3807)

0.737

 Route of stoma

  Transperitoneal/Retroperitoneal

1.286 (0.3987–4.1514)

0.673

 Pelvic peritoneal closure

3.2110 (0.1029–3.6031)

0.012

 Operating time

0.2071 (0.0139–4.8280)

0.245

 Bleeding

1.0002 (0.9983–1.0023)

0.794

 Transfusion

0.6765 (0.1304–3.5095)

0.642

 Residual tumor

  R0#/R1##

0.3469 (0.0206–5.857)

0.463

  R0#/R2###

1.3878 (0.1449–13.2948)

0.776

  R1##/R2###

4.0000 (0.1168–136.9573)

0.442

 Postoperative systemic chemotherapy

0.6282 (0.2146–1.8391)

0.396

Postoperative variables

 Postoperative complication

  Perineal wound dehiscence

3.3333 (0.7429–149571)

0.122

  Pelvic abscess

0.3194 (0.0372–2.7399)

0.298

  Urinary disorder

0.9375 (0.2253–3.9009)

0.929

  Ileus

0.7899 (0.1492–4.1814)

0.782

 Length of postoperative hospital stay

1.0025 (0.9650–10415)

0.897

  1. *BMI: body mass index, **ASA-PS: American Society of Anesthesiologists physical status, ***NCRT: neoadjuvant chemoradiotherapy, #R0: resection for cure or complete remission, ##R1: microscopic residual tumor, ###R2: macroscopic residual tumor