Table 3 Primary and secondary outcome measures
Group A (n = 46) | Group B (n = 46) | Group C (n = 45) | Statistics | |
|---|---|---|---|---|
Patients missing follow-up visits n(%) | 11 (23.9) | 9 (19.5) | 2 (4.4) | p < 0.025* |
Responders n(%) | 28 (60.8) | 28 (60.8) | 40 (88.9) | p = 0.003* |
Responders with headache improvement n (%) | 25 (54.3) | 26 (56.5) | 38 (84.4) | p = 0.003§ |
Percent reduction in number of headache days/month mean ± SD (median) | 44 ± 25 (50) | 49.8 ± 28 (52) | 73 ± 22 (76) | p < 0.001¤ |
Percent reduction in the number of days with use of symptomatic medication mean ± SD (median) | 62.5 ± 23 (64) | 63.6 ± 26 (64) | 75.2 ± 23 (78) | p = 0.001¤ |
Percent reduction in the number of symptomatic medication mean ± SD (median) | 67.8 ± 18 (68) | 69.7 ± 22 (70) | 83.3 ± 20 (84) | p = 0.001 |