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Table 1: 
Patient characteristics
Characteristic
No. of patients113
No. of aneurysms127 (102 patient with 1 UIA, 8 with 2 and 3 with 3 UIAs)
Sex (% women)81 women, 32 men (72% women)
Age at baseline (mean) (yr)55  (range, 27 –77 )
UIA size at baseline (mean) (mm)3.8  (SD, 1.9)
Time between baseline and follow-up scan (median) (yr)4.1  (range, 0.9–13.1 )
Location of aneurysm
 Anterior cerebral or communicating artery25 (20%)
 ICA or posterior communicating artery33 (26%)
 MCA53 (42%)
 Posterior circulation16 (13%)