Table 5 Multivariate logistic regression for overall complications

Age

Female

BMI

INR

Smoking

Intraoperative blood loss

Surgical duration

Number of fused levels

Postoperative total drainage volume

Postoperative timing of ambulation

1.47 (0.94–2.38)

0.85 (0.73–1.21)

1.41 (0.39–4.52)

3.68 (0.58–8.37)

1.11 (0.61–1.74)

1.18 (0.99–1.65)

2.17 (0.77–4.21)

3.24 (0.39–8.49)

1.38 (0.35–3.57)

2.38 (1.19–3.97)

0.159

0.867

0.741

0.998

0.368

0.132

0.140

0.155

0.847

< 0.001