End diagnosis (in order of frequency)
| Diagnosis | Frequency, n (%) |
|---|---|
| Primary headache disorder | 85 (55.6) |
| Migraine (unspecified) | 38 (24.8) |
| Migraine with aura | 22 (14.4) |
| Cerebrovascular disease | 8 (5.2) |
| Non-specific headache | 8 (5.2) |
| Migraine without aura | 7 (4.6) |
| Peripheral neuropathy | 6 (3.9) |
| Medication overuse headache | 5 (3.3) |
| Epilepsy | 5 (3.3) |
| Multiple sclerosis | 5 (3.3) |
| Parkinson's disease | 5 (3.3) |
| Syncope | 5 (3.3) |
Four patients were given more than one end diagnosis. The table has been abbreviated to only show those diagnoses with a minimum of five cases. For full table of diagnoses, see supplementary material S1, Table S3.