Table 2.

Baseline characteristics of the study groups

Baseline characteristics	Polyphasic group (n = 19)	Monophasic group (n = 22)	P value
Age (mean ± SD), years	53.3 ± 12.5	51.3 ± 13.7	0.31
Male, n (%)	5 (26.3)	13 (59.1)	0.07
Side (left), n (%)	12 (63.2)	15 (68.2)	0.99
Symptom duration (mean ± SD), months	57.1 ± 49.0	60.3 ± 72.6	0.43
Risk factors, n (%)
Hypertension	5 (26.3)	2 (9.1)	0.22
Diabetes mellitus	2 (10.5)	0 (0.0)	0.21
Dyslipidemia	2 (10.5)	3 (13.6)	1
Offending vessels, n (%)
AICA	17 (89.5)	12 (54.5)	0.02
PICA	5 (26.3)	10 (45.5)	0.35
VA	3 (15.8)	9 (40.9)	0.1
Complex	6 (31.6)	7 (31.8)	0.75

Baseline data did not differ between the two groups, except for the percentage of cases in which the AICA was the offending vessel. SD, standard deviation; AICA, anterior inferior cerebellar artery; PICA, posterior inferior cerebellar artery; VA, vertebral artery