Table 4.
Dosage forms of medications taken by the 291 patients for acute treatment and comparison between chronic and episodic headache patients (some patients took more than one symptomatic drug of more than one dosage form)
| Dosage form | Total (n = 291), n (%) | Episodic headache (n = 172), n (%) | Chronic headache (n = 119), n (%) | OR [95% CI]a | P valueb |
|---|---|---|---|---|---|
| Oral | 274/291 (94.2) | 161/172 (93.6) | 113/119 (95.0) | 1.29 [0.46–3.59] | 0.6290 |
| Intramuscolar | 59/291 (20.3) | 31/172 (18.0) | 28/119 (23.5) | 1.40 [0.79–2.49] | 0.2515 |
| Subcutaneous | 31/291 (10.7) | 13/172 (7.6) | 18/119 (15.1) | 2.18 [1.02–4.67] | 0.0400 |
| Rectal | 26/291 (8.9) | 12/172 (7.0) | 14/119 (11.8) | 1.78 [0.79–4.01] | 0.1599 |
| Nasal spray | 6/291 (2.1) | 3/172 (1.7) | 3/119 (2.5) | 1.46 [0.29–7.37] | 0.6472 |
CI confidence interval, OR odds ratio
achronic vs episodic headache OR
bp value is derived from a Chi square test for homogeneity of odds