Outcome | Control group (n = 45) | Magnesium sulfate group (n = 45) | p value |
---|---|---|---|
VAS pain score (rest)a | |||
 2 h | 2.78 ± 0.85 | 2.34 ± 0.53 | 0.020 |
 6 h | 3.07 ± 0.78 | 2.69 ± 0.79 | 0.013 |
 12 h | 3.67 ± 0.74 | 3.18 ± 0.86 | 0.008 |
 24 h | 3.36 ± 0.68 | 2.87 ± 0.79 | 0.002 |
 48 h | 2.78 ± 0.64 | 2.67 ± 0.71 | 0.351 |
 72 h†| 2.18 ± 0.75 | 1.98 ± 0.58 | 0.205 |
VAS pain score (motion)a | |||
 6 h | 4.89 ± 0.86 | 4.44 ± 0.72 | 0.017 |
 12 h | 5.60 ± 0.89 | 4.98 ± 0.75 | 0.001 |
 24 h | 5.36 ± 0.68 | 4.82 ± 0.68 |  < 0.001 |
 48 h | 4.29 ± 0.63 | 4.11 ± 0.71 | 0.242 |
 72 h†| 3.51 ± 0.69 | 3.31 ± 0.56 | 0.165 |
Morphine consumption (mg)a | |||
 Within 24 h | 11.78 ± 6.76 | 7.44 ± 8.16 | 0.008 |
 24–48 h | 4.00 ± 5.29 | 3.56 ± 4.21 | 0.949 |
 48–72 h | 1.11 ± 3.18 | 0.56 ± 2.19 | 0.437 |
 Total | 16.89 ± 10.19 | 11.56 ± 8.31 | 0.012 |
Time to first rescue analgesia (h)‡ | 12.08 ± 3.73 | 18.11 ± 7.64 | 0.020b |
 No morphine cases (n, %) | 7 (15.56%) | 10 (22.22%) | 0.419c |