Table 2 Change in pain
Agent | Tramadol | Placebo | ||
|---|---|---|---|---|
Frequency of pain score | P1 | P2 | P1 | P2 |
0 | - | 3 | - | - |
1 | - | 3 | 1 | 2 |
2 | - | 6 | 5 | 8 |
3 | - | 2 | 1 | 7 |
4 | 5 | 9 | 9 | 3 |
5 | 11 | 6 | 9 | 16 |
6 | 1 | 6 | 3 | 3 |
7 | 4 | 6 | 8 | 6 |
8 | 9 | 4 | 5 | 1 |
9 | 6 | 1 | 2 | 2 |
10 | 10 | - | 6 | 1 |
Total (n) | 46 | 46 | 49 | 49 |
Wilcoxon signed-rank test (for equality of median) | PI > P2 | PI > P2 | ||
P < 0.0001 | P < 0.0001 | |||