Table 2

Discharge diagnosis by category

DiagnosisNumber (% of category)Total
Abnormal examination“First or worst” headacheUsual headacheIndeterminate group
n = 50n = 36n = 37n = 230n = 353
Migraine10 (20)4 (11.1)14 (37.8)78 (33.9)106 (30.0)
Tension headache5 (10)5 (13.9)5 (13.5)37 (16.1)52 (14.7)
Cluster headache1 (2)1 (2.8)04 (1.7)6 (1.7)
Other primary headache14 (28)16 (44.4)9 (24.3)77 (33.5)116 (32.9)
SAH4 (8)3 (8.3)007 (2.0)
Other intracranial bleed01 (2.8)001 (0.3)
Cerebral/cerebellar infarct5 (10)02 (5.4)1 (0.4)8 (2.3)
Meningitis01 (2.8)02 (0.9)3 (0.8)
Systemic infection3 (6)1 (2.8)2 (5.4)12 (5.2)18 (5.1)
Other secondary headache2 (4)3 (8.3)5 (13.5)18 (7.8)28 (7.9)
Diagnosis not known6 (12)1 (2.8)01 (0.4)8 (2.3)