Table 2 Mean and standard deviation of pain intensity in the studied groups at different times
Time | Dexmedetomidine 0.2 μg/kg/h (n = 33) | Dexmedetomidine 0.5 μg/kg/h (n = 30) | Placebo (n = 27) | *P | **P | ***P |
|---|---|---|---|---|---|---|
2 h after surgery | 2.66 ± 1.67 | 2.13 ± 1.45 | 4.77 ± 1.16 | > 0.001 | > 0.001 | 0.013 |
6 h after surgery | 3.18 ± 1.62 | 2.23 ± 1.47 | 4.44 ± 1.64 | > 0.001 | ||
12 h after surgery | 2.54 ± 1.60 | 1.70 ± 1.41 | 3.40 ± 1.47 | > 0.001 | ||
24 h after surgery | 1.96 ± 1.26 | 1.33 ± 1.15 | 2.59 ± 1.24 | > 0.001 |