Table 1

Patient and aneurysm characteristics

 CharacteristicsStableUnstablep Value
Age (years), mean (SD)66.2 (14.6)65.4 (9.2)0.88
Female, N (%)10 (83.3)12 (100.0)0.14
Race, N (%)
 White non-Finnish11 (91.7)8 (66.7)0.25
 Black1 (8.3)2 (16.7)
 Hispanic0 (0.0)2 (16.7)
Hypertension, N (%)4 (33.3)6 (50.0)0.41
Current smoker, N (%)5 (41.7)2 (16.7)0.37
Family history of aneurysm, N (%)3 (25.0)1 (8.3)0.27
History of SAH, N (%)2 (16.7)1 (8.3)0.54
Aneurysm size (mm), mean (SD)7.3 (4.4)7.6 (4.1)0.89
 ≤7, N (%)9 (75.0)8 (66.7)
 >7, N (%)3 (25.0)4 (33.3)0.65
Aneurysm location
 AcomA2 (16.7)2 (16.7)1
 Basilar2 (16.7)2 (16.7)
 Cavernous ICA3 (25.0)3 (25.0)
 Supraclinoid ICA2 (16.7)2 (16.7)
 MCA1 (8.3)1 (8.3)
 PCA1 (8.3)1 (8.3)
 PICA1 (8.3)1 (8.3)
PHASES score, mean (SD)5.7 (2.0)5.1 (2.1)0.49
  • AcomA, anterior communicating artery; ICA, internal carotid artery; MCA, middle cerebral artery; PCA, posterior cerebral artery; PICA, posterior inferior cerebellar artery; SAH, subarachnoid hemorrhage.