Table 3 Univariate and multivariate analyses for postoperative complications

Age, years

0.082

 <60

Reference

 ≥60

2.272 (0.902–5.721)

BMI, kg/m²

0.039

0.052

 <25

Reference

Reference

 ≥25

2.569 (1.048–6.297)

3.078 (0.991–9.562)

FIGO stage

0.105

 IA2-IB1

Reference

 IB2-IIA1

2.078 (0.859–5.029)

Histological type

0.476

 SCC

Reference

 Non-SCC

1.406 (0.550–3.593)

Tumor size, mm

0.015

0.506

 <20

Reference

Reference

 ≥20

2.829 (1.226–6.527)

1.411 (0.511–3.894)

Depth of stromal invasion

0.432

 ≤1/2

Reference

 >1/2

1.392 (0.610–3.177)

Lymphovascular space invasion

0.802

 No

Reference

 Yes

1.159 (0.366–3.671)

Lymph node metastasis

0.066

 No

Reference

 Yes

3.312 (0.926–11.850)

iAE

< 0.001

< 0.001

 No

Reference

Reference

 Yes

19.885 (7.352–53.778)

15.100 (4.735–48.158)

OSATS score

0.579 (0.437–0.767)

< 0.001

0.860 (0.619–1.194)

0.367