Symptom frequencies
| Symptom | Cases | Controls | p Value* |
|---|---|---|---|
| *With Bonferroni correction for multiple comparisons. | |||
| Pulsation | 24/0 | 22/26 | <0.001 |
| Exacerbated by exercise | 22/2 | 23/25 | <0.004 |
| Nausea | 21/3 | 18/30 | <0.001 |
| Vomiting | 13/11 | 12/36 | 0.326 |
| Photophobia | 24/0 | 25/23 | <0.001 |
| Phonophobia | 18/6 | 21/27 | 0.236 |
| Osmophobia | 15/9 | 20/28 | 1.000 |
| Ptosis | 16/8 | 8/48 | 0.001 |
| Unilateral nasal congestion | 9/15 | 5/43 | 0.179 |
| Bilateral nasal congestion | 7/17 | 9/39 | 1.000 |
| Eye redness | 11/13 | 5/43 | 0.029 |
| Unilateral tearing | 12/12 | 4/44 | <0.002 |
| Bilateral tearing | 9/15 | 6/42 | 0.479 |
| Neck pain before headache | 16/8 | 28/20 | 1.000 |
| Neck pain during headache | 18/6 | 35/13 | 1.000 |
| Neck pain after headache | 12/12 | 18/30 | 1.000 |
| Neck pain independent of headache | 11/13 | 21/27 | 1.000 |