Table 2:

Factors associated with hemorrhagic presentation by univariate analysisa

CharacteristicNonhemorrhage (n = 42)Hemorrhage (n = 66)Total (n = 108)P Value
Demographic
    Sex.771
        Female16 (38.1)27 (40.9)43 (39.8)
        Male26 (61.9)39 (59.1)65 (60.2)
    Age at diagnosis (yr)11.71 ± 4.2310.47 ± 4.0310.95 ± 4.13.128
Radiologic
    Venous drainage.344b
        Not exclusively deep40 (95.2)58 (87.9)98 (90.7)
        Exclusively deep2 (4.8)8 (12.1)10 (9.3)
    Deep location.320
        No30 (71.4)41 (62.1)71 (65.7)
        Yes12 (28.6)25 (37.9)37 (34.3)
    Periventricular location.011c
        No23 (54.8)20 (30.3)43 (39.8)
        Yes19 (45.2)46 (69.7)65 (60.2)
    Posterior fossa location1.000d
        No39 (92.9)61 (92.4)100 (92.6)
        Yes3 (7.1)5 (7.6)8 (7.4)
    Associated aneurysm.396
        No38 (90.5)56 (84.8)94 (87.0)
        Yes4 (9.5)10 (15.2)14 (13.0)
    Maximal nidus size (mm)45.33 ± 18.2535.64 ± 18.5439.41 ± 18.95.009c

  • ↵a Data are No. (%) or mean ± SD.

  • ↵b P values are from the χ2 test (correction for continuity).

  • ↵c Statistically significant.

  • ↵d P values are from the Fisher exact test.