Table 3 Therapeutic responses according to the duration of the illness
NDPH (All patients) (n = 63) (%) | NDPH (3–6 months) (n = 12) | NDPH (>6–24 months) (n = 24) | NDPH (>24 months) (n = 27) | p value | |
|---|---|---|---|---|---|
Excellent (no or less than one headache per month), n (%) | 23 (37 %) | 7 (58 %) | 9 (38 %) | 7 (26 %) | 0.16 |
Good (>50 % reduction in headache frequency or days per month) n (%) | 19 (30 %) | 3 (25 %) | 7 (29 %) | 9 (33 %) | 0.87 |
Fair (<50 % reduction in headache frequency or days per month) | 12 (19 %) | 2 (17 %) | 5 (21 %) | 5 (19 %) | 1.0 |
Poor (Minimal or no response). | 9 (14 %) | 0 (0 %) | 3 (12 %) | 6 (22 %) | 0.23 |