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. 2016 Feb;37(2):297–304. doi: 10.3174/ajnr.A4503

Table 3:

Diagnosis as determined by digital subtraction angiography

All Men Women
Diagnosis after initial DSA
    No causative lesion 201 (87%) 110 (55%)a 91 (45%)
    Aneurysm 12 (5%) 3 (25%) 9 (75%)
    Arteriovenous malformation 2 (1%) 1 (50%) 1 (50%)
    Arteriovenous fistula 1 (0.5%) 1 (100%) 0 (0%)
    Vasculitis/vasculopathy 15 (7%) 3 (21)b 11 (79%)
a

P = .01 by Fisher exact test.

b

P = .03 by Fisher exact test.