Table 7 Logistic regression analysis of factors predicting POD at different times among the studied groups

POD 2 h postop:

 Emergence agitation

1.470

0.556

6.995

4.35(1.46–12.9)

0.008*

 Fentanyl dose

0.759

0.278

7.447

2.13 (1.23–3.68)

0.006*

POD 1st day evening:

 Emergence agitation

1.307

0.599

4.763

3.69(1.14–11.9)

0.02*

 Fentanyl dose

0.269

0.279

0.932

1.30(0.75–2.26)

0.334

POD 2nd day at 11 a.m

 Emergence agitation

1.072

0.611

3.079

2.92(0.88–9.68)

0.079

 Fentanyl dose

0.554

0.295

3.410

1.72(0.96–3.06)

0.065

POD 3rd day at 6 p.m

 Emergence agitation

1.931

1.155

2.793

6.89(0.71–66.04)

0.095

 Fentanyl dose

0.172

0.457

0.141

1.18(0.48–2.91)

0.707