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Clinical and demographic characteristics of the study population and subgroup
Study Population (n = 97) Subgroup^a (n = 57)
All (n = 97) DCI (n = 40) No DCI (n = 57) All (n = 57) Vasospasm (n = 36) No Vasospasm (n = 21)
Age (yr) (median) 49 48 49 51 48 55
    Range 28–80 30–78 28–80 28–80 30–78 28–80
Sex 
    Male (%) (No.) 27 (26/97) 25 (10/40) 28 (16/57) 25 (14/57) 25 (9/36) 24 (5/21)
    Female (%) (No.) 73 (71/97) 75 (30/40) 72 (41/57) 75 (43/57) 75 (27/36) 76 (16/21)
Aneurysm location 
    Anterior 92 (89/97) 90 (36/40) 93 (53/57) 95 (54/57) 92 (33/36) 100 (21/21)
    Posterior 8 (8/97) 10 (4/40) 7 (4/57) 5 (3/57) 8 (3/36) 0 (0/21)
Treatment type 
    Surgical clipping 55 (53/97) 50 (20/40) 58 (33/57) 65 (37/57) 56 (20/36) 81 (17/21)
    Coil embolization 45 (44/97) 50 (20/40) 42 (24/57) 35 (20/57) 44 (16/36) 19 (4/21)
Hunt and Hess grade 
    Low (grades 1 and 2) 53 (51/97) 35 (14/40) 63 (36/57) 46 (26/57) 36 (13/36) 62 (13/21)
    High (grades 3, 4, and 5) 47 (46/97) 65 (26/40) 37 (21/57) 54 (31/57) 64 (23/36) 38 (8/21)
Clinical deterioration 45 (44/97) 83 (33/40) 19 (11/57) 67 (38/57) 81 (29/36) 43 (9/21)
↵a DSA as the reference standard.