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 pulmonary infection
2.75
1.20–6.28
0.016
ASA score 3/4
2.14
1.01–4.52
0.046
Utilization of catheter after surgery
2.53
1.23–5.19
0.012