Table 3 Multivariable logistic regression analysis of predicting the probability of patients requiring prolonged length of stay of PACU in development set

Intercept

-5.000(-5.243--4.760)

0.007(0.005-0.009)

-40.559

<0.001

Age >55 y

0.805(0.719-0.893)

2.238(2.052-2.442)

18.141

<0.001

BMI<21kg/m²

0.237(0.147-0.327)

1.268( 1.158-1.387)

5.166

<0.001

ASA

0.434(0.341-0.527)

1.543(1.406-1.694)

9.149

<0.001

surgery

0.854(0.779-0.930)

2.349(2.179-2.534)

22.160

<0.001

chill

0.705(0.511-0.899)

2.024(1.666-2.457)

7.124

<0.001

delirium

1.903(1.755- 2.053)

6.707(5.786-7.790)

25.086

<0.001

pain

0.959(0.707-1.211)

2.608( 2.028-3.356)

7.466

<0.001

naloxone

1.978(1.345-2.646)

7.225(3.839-14.100)

5.993

<0.001

PLOD >110 min

0.554(0.469-0.640)

1.741(1.599-1.896)

12.736

<0.001

blood transfusion

0.327(0.181-0.473)

1.387(1.198-1.604)

4.401

<0.001

temperature<36.2 ℃

0.356(0.268-0.443)

1.428(1.308-1.558)

7.969

<0.001