Unilateral Aplasia versus Bilateral Aplasia of the Vertebral Artery: A Review of Associated Abnormalities

Table 2

Distribution of the vertebral artery (VA) aplasia according to the gender.

Side of VA aplasia	Female	Male	Unknown
	Number (%)
Bilateral	11/108 (10.18)	19/108 (17.59)	1/108 (0.92)
Left	24/108 (22.22)	20/108 (18.52)	2/108 (1.85)
Right	14/108 (12.96)	14/108 (12.96)	3/108 (2.77)
Total	49/108 (45.37)	53/108 (49.07)	6 (5.55)