Table 3 Multivariate analysis of various factors potentially affecting presence of complication, major complication, 90-day mortality and positive surgical margin

Complication

OR (%95 CI)

p

 LC

0.542 (0.284–1.034)

0.063

 ISD index

0.577 (0.037–8.996)

0.695

 BFW index

4.868 (0.335–70.752)

0.246

 BMI

1.176 (0.986–1.403)

0.072

 Charlson comorbidity group (score ≥ 5)

4.197 (1.118–15.756)

0.034

 ASA score

1.351 (0.443–4.122)

0.597

 Clinical LN status

2.927 (0.764–11.217)

0.117

 Pathological stage

1.057 (0.656–1.702)

0.821

Major complication

OR (%95 CI)

p

 AD

2.664 (0.730–9.717)

0.138

 ISD index

0.444 (0.033–5.971)

0.540

 Charlson comorbidity group (score ≥ 5)

3.357 (1.009–11.169)

0.048

 Clinical LN status

0.638 (0.166–2.447)

0.512

 Pathological stage

1.634 (0.943–2.833)

0.080

 LC

1.754 (0.889–3.463)

0.105

 BMI

1.288 (1.032–1.608)

0.025

 ASA score

2.664 (0.730–9.717)

0.138

Mortality within 90 day

OR (%95 CI)

p

 AD

0.673 (0.014–32.028)

0.841

 ISD index

0.066 (0.001–4.264)

0.201

 LC

1.781 (0.576–5.501)

0.316

 UC

1.245 (0.411–3.771)

0.698

 Charlson comorbidity group (score ≥ 5)

11.492 (1.679–78.645)

0.013

 BMI

1.252 (0.874–1.794)

0.220

 Perioperative complication

4.492 (0.408–49.498)

0.220

 Pathological stage

1.555 (0.721–3.351)

0.260

 Clinical LN status

1.220 (0.146–10.229)

0.854

Positive surgical margin

OR (%95 CI)

p

 ISD index

0.022 (0.001–0.524)

0.018

 Pathological stage

12.824 (2.619–62.806)

0.002

 Charlson comorbidity group (score ≥ 5)

7.563 (1.008–56.722)

0.049