Table 3 Numerical rating scale for pain score on movement at 6 hourly intervals
Postoperative time interval | PSOM (n) | P value | ||
|---|---|---|---|---|
Total (N = 97) | Low dose (N = 41) | High dose (N = 56) | ||
0–6 h | 5.0 ± 1.5 (97) | 5.1 ± 1.4 (41) | 4.9 ± 1.6 (56) | 0.144 |
6–12 h | 4.9 ± 1.4 (96) | 4.9 ± 1.1 (41) | 5.0 ± 1.6 (55) | 0.693 |
12–18 h | 5.0 ± 1.5 (97) | 5.1 ± 1.5 (41) | 5.0 ± 1.5 (56) | 0.840 |
18–24 h | 4.8 ± 1.5 (97) | 4.8 ± 1.2 (41) | 4.8 ± 1.6 (56) | 0.849 |
24–30 h | 4.7 ± 1.4 (94) | 4.5 ± 1.3 (39) | 4.8 ± 1.6 (55) | 0.450 |
30–36 h | 4.7 ± 1.3 (91) | 4.4 ± 1.1 (36) | 4.9 ± 1.5 (55) | 0.091 |
36–42 h | 4.4 ± 1.4 (84) | 4.1 ± 1.4 (36) | 4.5 ± 1.4 (48) | 0.209 |
42–48 h | 4.1 ± 1.2 (74) | 4.0 ± 1.0 (34) | 4.2 ± 1.4 (40) | 0.514 |
Mean over 24 h | 4.9 ± 1.3 (97) | 5.0 ± 1.1 (41) | 4.9 ± 1.4 (56) | 0.868 |
Mean over 48 h | 4.7 ± 1.1 (97) | 4.6 ± 0.9 (41) | 4.8 ± 1.3 (56) | 0.583 |