Table 4 Highest, lowest, and mean reported numeric rating scale pain scores (0–10) for both groups for the first 2 postoperative days

PACU discharge–23:59

4.6 ± 2.9

3.9 ± 2.5

0.409

2.0 ± 1.8

1.2 ± 1.5

0.095

2.6 ± 2.1

2.7 ± 2.1

0.765

3.2 ± 2.1

2.5 ± 1.8

0.208

 00:00–08:00

5.0 ± 2.4

3.5 ± 2.5

0.035

2.6 ± 2.0

1.7 ± 1.9

0.292

2.4 ± 2.2

1.8 ± 1.3

0.256

3.7 ± 1.9

2.4 ± 2.1

0.026

 08:01–16:00

5.6 ± 2.4

5.4 ± 1.8

0.740

2.3 ± 1.5

2.1 ± 1.4

0.119

3.3 ± 2.3

3.3 ± 1.9

0.865

4.1 ± 1.7

3.5 ± 1.5

0.201

 16:01–23:59

6.0 ± 2.4

5.4 ± 2.5

0.412

2.9 ± 1.6

2.0 ± 1.2

0.056

3.1 ± 2.5

3.4 ± 2.4

0.701

4.3 ± 1.6

3.7 ± 1.6

0.198

POD 2

6.7 ± 2.2

6.1 ± 2.5

0.462

2.0 ± 1.6

1.2 ± 1.4

0.012

4.7 ± 2.1

5.0 ± 2.5

0.175

4.3 ± 1.6

3.4 ± 1.6

0.051