Table 2.

Multivariable associations for association of EOOH with index ICH (top panel) and new ICH after diagnosis (bottom panel). Variables are indicator variables unless otherwise noted.

Outcome: Index ICH
	OR	Lower	Upper	P Value	N
Evidence of old hemorrhage (EOOH)	3.97	2.10	7.50	< 0.001	882
Age at diagnosis (decade)	0.87	0.80	0.95	0.002	882
Sex (male)	0.94	0.70	1.25	0.652	882
Deep only venous drainage	2.51	1.66	3.79	< 0.001	882
Maximal AVM size (cm)	0.73	0.65	0.81	< 0.001	882
Deep location	1.77	1.16	2.71	0.009	882
Associated arterial aneurysm	1.67	1.21	2.29	0.002	882
Outcome: new ICH after diagnosis
	HR	Lower	Upper	P Value	N
Evidence of old hemorrhage (EOOH)	3.53	1.35	9.23	0.010	643
Age at diagnosis (decade)	1.19	0.92	1.53	0.178	643
Sex (male)	0.72	0.32	1.64	0.439	643
Deep only venous drainage	0.81	0.24	2.72	0.740	643
Maximal AVM size (cm)	0.91	0.68	1.21	0.510	643
Deep location	1.06	0.35	3.21	0.917	643
Associated arterial aneurysm	1.26	0.53	2.99	0.593	643