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Table 1: 
Baseline characteristics of periventricular and nonperiventricular BAVMsa
CharacteristicNonperiventricular (n = 43)Periventricular (n = 65)Total (n = 108)P Value
Demographic
    Sex.450
        Female19 (44.2)24 (36.9)43 (39.8)
        Male24 (55.8)41 (63.1)65 (60.2)
    Age at diagnosis (yr)12.07 ± 3.4110.22 ± 4.4210.95 ± 4.13.022b
Clinical
    Hemorrhage presentation.011b
        No23 (53.5)19 (29.2)42 (38.9)
        Yes20 (46.5)46 (70.8)66 (61.1)
        IVH nonpresence17 (85.0)22 (47.8)39 (59.1)
        IVH presence3 (15.0)24 (52.2)27 (40.9)
    Venous drainage.315c
        Not exclusively deep41 (95.3)57 (87.7)98 (90.7)
        Exclusively deep2 (4.7)8 (12.3)10 (9.3)
    Deep location<.001b
        No37 (86.0)34 (52.3)71 (65.7)
        Yes6 (14.0)31 (47.7)37 (34.3)
    Posterior fossa location.374
        No41 (95.3)59 (90.8)100 (92.6)
        Yes2 (4.7)6 (9.2)8 (7.4)
    Associated aneurysm.737
        No38 (88.4)56 (86.2)94 (87.0)
        Yes5 (11.6)9 (13.8)14 (13.0)
    Maximal nidus size (mm)35.74 ± 15.1141.83 ± 20.8739.41 ± 18.95.082d
  • ↵a Data are No. (%) or mean ± SD.
  • ↵b Statistically significant.
  • ↵c P values are from the χ2 test (correction for continuity).
  • ↵d P values are from the t test.