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Association between impact of medicine on headache duration in groups
| Groups | Placebo (n=41) frequency (%) |
Lidocaine (n=41) frequency (%) |
Peppermint oil (n=38) frequency (%) |
P |
|---|---|---|---|---|
| Medicine impact | ||||
| Ineffective | 12 (29.3) | 11 (26.8) | 8 (21.1) | P<0.01 |
| 30 min later | 14 (34.1) | 6 (14.61) | 5 (13.2) | |
| 15 min later | 12 (29.3) | 11 (26.8) | 8 (21.1) | |
| 5 min later | 3 (7.3) | 13 (31.7) | 17 (44.7) |
