TABLE 1.

Sample characteristics by post-hemorrhage presentation mRS^*

Characteristic	Nonsevere Outcome (mRS ≤3) (n = 77)	Severe Outcome (mRS >3) (n = 77)	All (n = 154)	p Value
demographic
female sex	30 (39%)	41 (53%)	71 (46%)	0.075
mean age at presentation	33.9 ± 20.1	30.6 ± 18.1	32.3 ± 19.1	0.281
non-Hispanic white	37 (48%)	34 (44%)	71 (46%)	0.628
clinical
posterior fossa location	12 (16%)	25 (32%)	37 (24%)	0.014
associated aneurysm†	18 (25%)	31 (44%)	49 (35%)	0.016
mean AVM size (cm)‡	2.32 ± 1.67	2.50 ± 1.37	2.41 ± 1.52	0.488
deep location†	15 (19%)	19 (25%)	34 (22%)	0.412
eloquence†	41 (56%)	54 (72%)	95 (64%)	0.045
exclusively deep venous drainage†	19 (25%)	21 (28%)	40 (26%)	0.677

^*Values represent number of patients (%) unless otherwise indicated. Means are presented with SDs. Complete clinical information for all variables was available for 136 patients. Variables with incomplete data are indicated by the dagger symbol. Boldface indicates statistical significance.

^†Incomplete data.

^‡Mean maximum diameter.