Table 3.
Number and percentage of patients by headache aetiology
| Diagnosis | N | Percentage (95% confidence interval) |
|---|---|---|
| Cryptococcal meningitis | 50 | 28 (22-35) |
| Bacterial sinusitis | 56 | 31 (24-38) |
| Cerebral toxoplasmosis | 7 | 4 (2-8) |
| Tuberculous (TB) meningitis | 7 | 4 (2-8) |
| Other: | 32 | 18 (13-24) |
| Viral meningitis | 6 | 3 (2-7) |
| Malaria | 5 | 3 (1--6) |
| TB adenitis/abdominal TB | 3 | 2 (1-5) |
| Depression/anxiety | 2 | 1 (0-4) |
| CMV retinitis | 2 | 1 (0-4) |
| Drug-induced headache | 2 | 1 (0-4) |
| Partially treated bacterial meningitis | 1 | 1 (0-3) |
| Otitis media | 1 | 1 (0-3) |
| Tonsillitis | 1 | 1 (0-3) |
| Aphthous ulcer | 1 | 1 (0-3) |
| Central retinal vein occlusion | 1 | 1 (0-3) |
| HIV associated nephropathy | 1 | 1 (0-3) |
| Urinary tract infection | 1 | 1 (0-3) |
| Herpes zoster ophthalmicus | 1 | 1 (0-3) |
| Bell's palsy | 1 | 1 (0-3) |
| Staphylococcus aureus bacteraemia | 1 | 1 (0-3) |
| Cerebro-vascular accident | 1 | 1 (0-3) |
| Hepatitis | 1 | 1 (0-3) |
| Unknown | 28 | 16 (11-22) |