Table 1

Patient and aneurysm characteristics

No of patients1739
Age (years)
 Mean58.1
 Range19–86
Gender
 Women562
 Men1177
Ruptured aneurysms, n (%)637 (36.1)
WFNS grade, n (%)
 I448 (70.4)
 II102 (16.1)
 III15 (2.3)
 IV65 (10.2)
 V7 (1.0)
Unruptured aneurysms, n (%)1127 (63.8)
Symptom, n (%)
 Headache or dizziness692 (61.4)
 Previous subarachnoid hemorrhage91 (8.1)
 Incidental211 (18.7)
 Cranial nerve palsy133 (11.8)
  • WFNS, World Federation of Neurological Societies.