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Table 1: 
Patients with dural arteriovenous fistulas with and without an occipital artery as one of the feedersa
Dural Arteriovenous FistulasP Value
With OA (n = 92 )Without OA (n = 89 )
Age (yr) (SD)54 ± 1456 ± 16.19
Male (%)44 (48)29 (33).04
Location (%)
    Cavernous sinus3 (3)60 (9)<.001
    Large sinusesb60 (65)9 (10)
    Other sinusesb29 (32)20 (23)
Type (%)
    I and IIa34 (37)53 (60)<.001
    IIb, IIa+b, and III48 (52)34 (38)
    IV and V10 (11)2 (2)
Aggressiveness (%)36 (39)21 (24).03
  • ↵a Values are numbers (percentages), except age.
  • ↵b Large sinuses include the transverse, sigmoid, and superior sagittal sinuses; other sinuses include all locations other than the cavernous sinus and large sinuses.