Table 4 Multivariable analysis of risk factors for postoperative AL in rectal surgery

Gender

Male

2.403

1.204–4.797

0.004

Age

0.994

0.962–1.026

0.307

BMI

> 30

0.858

0.389–1.894

0.495

ASA

III–IV

1.346

0.635–2.854

0.156

CCI

> 5

1.720

0.759–3.898

0.025

Diabetes mellitus

Yes

1.297

0.478–3.522

0.155

Ischemic heart disease

Yes

0.933

0.250–3.487

0.303

Cerebrovascular disease

Yes

1.090

0.185–6.432

0.644

Surgery type

Palliative

0.606

0.059–6.273

0.980

Neoadjuvant treatment

Yes

1.430

0.645–3.170

0.260

Anastomosis type

Stapled

1.310

0.125–13.727

0.809

Ligation of IMA

High

2.345

0.939–5.856

0.167

Air-water test

No

1.339

0.529–3.392

0.350

Ileostomy

No

0.884

0.405–1.930

0.749

Simultaneous operation

Yes

1.188

0.436–3.237

0.450

T stage

T3–4

2.250

1.052–4.815

0.017

Approach of surgery

Open

0.633

0.316–1.269

0.186

Anastomosis level from anal verge

< 5

3.286

0.933–11.569

0.064

Anastomosis level from anal verge

5–12

2.629

0.636–10.868

0.182