Table 2 Multivariable regression analysis of prognostic factors for prolonged PACU stays

Age

0.06 [0.00–0.11]

0.03

2.09

0.04

ASA score (ref.: 1)

 2

2.32 [− 3.17–7.80]

2.80

0.83

0.41

 3

6.09 [0.53–11.6]

2.84

2.15

0.03

BMI

 − 0.07 [− 0.18–0.05]

0.06

 − 1.13

0.26

Intraoperative NSAID use

14.4 [− 1.97–30.7]

8.33

1.72

0.08

Intraoperative acetaminophen use

10.4 [− 11.2–32.0]

11.0

0.94

0.35

Intraoperative fentanyl use

3.77 [2.19–5.35]

0.80

4.69

 < 0.01