Table 2 Comparison of numerical rating scale (NRS) scores of postoperative analgesia between the two groups (x ± s)
Time | Control group | Experimental group | Difference and 95% confidence interval (CI) | T-test | |
|---|---|---|---|---|---|
T value | P value | ||||
4 h after surgery | 5.23 ± 1.16 | 4.53 ± 1.22 | 0.7 (0.08–1.32) | 2.26 | 0.027 |
24 h after surgery | 4.46 ± 0.77 | 3.46 ± 0.73 | 1.0 (0.61–1.39) | 5.14 | < 0.001 |
48 h after surgery | 2.13 ± 0.78 | 1.37 ± 0.99 | 0.77 (0.31–1.23) | 3.31 | 0.002 |