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Table 3 Multivariable logistic regression model for factors of PLOS > 3 days

From: Factors influencing postoperative length of stay in an enhanced recovery after surgery program for primary total knee arthroplasty

Factor

Odds ratio

95%CI

P value

Preoperative valgus deformity of the knee

4.95

1.56–15.77

0.007

Increased serum level of IL-6 on POD1

1.01

1.00–1.03

0.039

Increased VAS pain score on POD3

2.56

1.28–5.13

0.008

Increased serum level of CRP on POD3

1.01

1.00–1.03

0.019

Increased day to achieve 90° active knee flexion after Surgery

2.19

1.27–3.79

0.005

Wound complications

8.58

2.10–35.03

0.003

Other minor complications

6.04

2.40–15.19

< 0.001

  1. PLOS postoperative length of stay, IL-6 interleukin-6, POD1 postoperative day 1, VAS visual analogue scale, POD3 postoperative day 3, CRP C-reactive protein