Table 3 Headache and pressure pain thresholds for the treatment (A) and waiting-list (B) group of chronic post-traumatic headache (CPTH) patients
|  | Group A (N = 34) | Group B (N = 33-37*) |  | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|  | Assessment II | Assessment IV |  | Assessment II | Assessment IV |  | p††| ||||
|  |  |  |  |  | d †|  |  |  |  | d †|  |
Frequency (days/ 4Â weeks) | 26.4 | (4.39) | 26.0 | (5.13) | .067 | 25.9 | (4.87) | 25.1 | (6.51) | .144 | .551 |
Intensity (0–10 scale) | 6.33 | (1.78) | 6.34 | (1.69) | .007 | 5.45 | (1.79) | 5.10 | (2.27) | .172 | .128 |
Headache index (intensity x duration) | 2341 | (1110) | 2261 | (1140) | .072 | 1880 | (1157) | 1772 | (1288) | .088 | .621 |
Pain threshold | 221 | (96.4) | 215 | (98.7) | .067 | 217 | (78.4) | 211 | (100) | .065 | .979 |