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Table 1: Baseline characteristics
Characteristics All Cases Unruptured Ruptured P Value
No. of patients 180 77 103 
Age (mean) (yr) 24.6 (SD, 12.7) 25.2 (SD, 11.9) 24.2 (SD, 13.3) .60
Sex (male) 110 (61.1%) 50 (64.9%) 60 (58.3%) .22
Admission mRs score (mean) 1.0 (SD, 1.1) 0.8 (SD, 0.6) 1.2 (SD, 1.3) .002^{^a}
Clinical presentation 
 Seizure 49 (27.2%) 32 (41.6%) 17 (16.5%) <.001^{^a}
 Headache (nonruptured) 25 (13.9%) 24 (31.2%) 1 (1.0%) <.001^{^a}
 Focal neurologic deficit 20 (11.1%) 12 (15.6%) 8 (7.8%) .08
Spetzler-Martin grade .07
 I 30 (16.7%) 8 (10.4%) 22 (21.4%) 
 II 61 (33.9%) 26 (33.8%) 35 (34.0%) 
 III 53 (29.4%) 25 (32.5%) 28 (27.2%) 
 IV 28 (15.6%) 15 (19.5%) 13 (12.6%) 
 V 8 (4.4%) 3 (3.9%) 5 (4.9%) 
↵a Statistical significance (P < .05).

Characteristics	All Cases	Unruptured	Ruptured	P Value
No. of patients	180	77	103
Age (mean) (yr)	24.6 (SD, 12.7)	25.2 (SD, 11.9)	24.2 (SD, 13.3)	.60
Sex (male)	110 (61.1%)	50 (64.9%)	60 (58.3%)	.22
Admission mRs score (mean)	1.0 (SD, 1.1)	0.8 (SD, 0.6)	1.2 (SD, 1.3)	.002^{^a}
Clinical presentation
Seizure	49 (27.2%)	32 (41.6%)	17 (16.5%)	<.001^{^a}
Headache (nonruptured)	25 (13.9%)	24 (31.2%)	1 (1.0%)	<.001^{^a}
Focal neurologic deficit	20 (11.1%)	12 (15.6%)	8 (7.8%)	.08
Spetzler-Martin grade				.07
I	30 (16.7%)	8 (10.4%)	22 (21.4%)
II	61 (33.9%)	26 (33.8%)	35 (34.0%)
III	53 (29.4%)	25 (32.5%)	28 (27.2%)
IV	28 (15.6%)	15 (19.5%)	13 (12.6%)
V	8 (4.4%)	3 (3.9%)	5 (4.9%)