Table 1:

Clinical and radiographic characteristics of the study population

CharacteristicsTest Set (No.) (%)Training Set (No.) (%)
Sex
    Male12 (40)5 (75)
    Female18 (60)15 (25)
Age (yr)
    45 or younger7 (23)5 (25)
    46–6016 (53)11 (55)
    Older than 607 (23)4 (20)
IVH
    Yes16 (53)4 (20)
    No14 (47)16 (80)
ICH
    Yes19 (63)12 (60)
    No11 (37)8 (40)
MCA location
    Left14 (47)18 (10)
    Right16 (53)2 (90)
WFNS at admission
    Grade I11 (37)9 (45)
    Grade II2 (7)2 (10)
    Grade III2 (7)4 (20)
    Grade IV8 (27)3 (15)
    Grade V7 (23)2 (10)
History of hypertension
    Yes3 (10)7 (35)
    No22 (73)13 (65)
Aneurysm size
    ≤5 mm9 (30)6 (30)
    6–10 mm14 (47)12 (60)
    11–15 mm3 (10)2 (10)
    >15 mm3 (10)
Signs of DCI
    No21 (70)19 (95)
    Yes9 (30)1 (5)
        Paresis1 (3)1 (5)
        Decreased consciousness4 (13)
        Hemiparesis and aphasia3 (10)
        Vasospasm1 (3)
  • Note:—IVH indicates intraventricular hemorrhage; ICH, intracerebral hemorrhage; DCI, delayed cerebral ischemia; WFNS, World Federation of Neurosurgical Societies.