Characteristics of 3132 enrolled patients with acute headache in study of computed tomography for diagnosis of subarachnoid haemorrhage. Figures are numbers (percentage) of patients unless stated otherwise
| Characteristics* | No of patients (n=3132) |
|---|---|
| Mean (SD) age (years) | 45.1 (17.1) |
| Women | 1889 (60.3) |
| Mean (SD) pain severity at peak (0-10) (n=2838) | 8.7 (1.6) |
| Worst headache of life (n=3065) | 2571 (82.1) |
| Onset during exertion (n=3103) | 381 (12.2) |
| Onset during sexual activity (n=3093) | 216 (6.9) |
| Transient loss of consciousness (n=3118) | 192 (6.1) |
| Awoken from sleep (n=3091) | 571 (18.2) |
| Neck painful/stiff by history (n=3094) | 1142 (36.5) |
| Vomiting (n=3096) | 922 (29.4) |
| Mean (SD) heart rate (BPM) (n=3102) | 79.4 (15.3) |
| Mean (SD) blood pressure (mm Hg): | |
| Systolic (n=3111) | 143.2 (24.6) |
| Diastolic (n=3108) | 82.1 (13.8) |
| Neck stiffness on examination (n=2902) | 180 (5.7) |
| Arrived by ambulance | 755 (24.1) |
BPM=beats per minute.
*No of patients with data recorded shown when characteristic not recorded for all patients.