Table 1:

Baseline clinical characteristics in R and NR groups

CharacteristicsR Group (n=72)NR Group (n=116)P Value
Age, years65 [56, 71]65 [56, 72].47
Sex, female47 (65)89 (77).10
Medical history 
 Hypertension46 (64)52 (45).02b
 Diabetes mellitus4 (5.6)9 (7.8).77
 Hyperlipidemia14 19)27 (23).59
 Polycystic kidney disease1 (1.4)4 (3.4).65
 Prior stroke4 (5.6)2 (1.7).21
 Cerebral small vessel diseasea39 (54)50 (43).18
Smoking 
 Current10 (14)18 (16).46
 Past smoker18 (25)20 (17) 
 None44 (61)78 (67) 
Drinking15 (21)18 (16).43
Family history 
 Cerebral aneurysm10 (14)24 (21).33
 Polycystic kidney1 (1.4)1 (0.9)1
Aneurysm characteristics 
 Thrombosed aneurysm6 (8.3)5 (4.3).34
 Multiple aneurysms26 (36)43 (37)1
 Aneurysm location 
  ACA/ACoA10 (14)17 15).13
  MCA9 (13)18 (16) 
  ICA37 (51)65 (56) 
  PCA0 (0)1 (0.9) 
  BA/SCA16 (22)11 (9.5) 
  VA/PICA0 (0)4 (3.4) 
  Posterior circulation15 (21)16 (14).23
  • Note:—ACA indicates anterior cerebral artery; ACoA, anterior communicating artery; BA, basilar artery; NR, non-major re-recanalization; PCA, posterior cerebral artery; R, major re-recanalization; SCA, superior cerebellar artery; VA, vertebral artery.

  • a Cerebral small vessel disease was diagnosed if 1 or more of the following radiologic features were seen on MRI: 1) subcortical small, focal infarction, 2) diffuse white matter lesions present as white matter hyperintensities on T2WI, 3) microbleeding in the subcortical region.

  • b P < .05. Unless otherwise indicated, values represent the number of aneurysms (%) or median (IQR). Not all percentage totals reach 100% because of rounding.