Table 1.

Comparison of patient cohorts used for model training and model evaluation. ACA=Anterior cerebral artery, ACOM=anterior communicating artery, BA=basilar artery, ICA=internal carotid artery, MCA=middle cerebral artery, PCOM=posterior communicating artery, VA=vertebral artery; R and U refer to the number of ruptured and unruptured aneurysms, respectively

		Training population	AneuRisk	AneuX
Number of patients		1061	99	104
Number of aneurysms (ruptured/unruptured)		1631 (492R/1139U)	113 (44R/69U)	136 (22R/114U)
Patient age (mean ± sd) (of 1065 patients with known age)		56.25 ± 13.77	54.36 ± 13.58	54.99 ± 13.70
Patients with multiple aneurysms		328	13	22
Number of patients with SAH		490	44	22
Distribution by location	ACA	57 (3.49%) 20R/37U	1 (0.89%) 1R/0U	4 (2.94%) 1R/3U
	ACOM	226 (13.86%) 148R/78U	23 (20.35%) 17R/6U	22 (16.18%) 6R/16U
	BA	106 (6.50%) 35R/71U	7 (6.19%) 4R/3U	7 (5.15%) 3R/4U
	ICA	636 (38.99%) 64R/572U	36 (31.86%) 3R/33U	41 (30.15%) 2R/39U
	MCA	310 (19.01%) 82R/228U	28 (24.78%) 9R/19U	43 (31.62%) 5R/38U
	PCOM	260 (15.94%) 127R/133U	18 (15.93%) 10R/8U	15 (11.03%) 4R/11U
	VA	36 (2.21%) 16R/20U	0 (0%) 0R/0U	4 (2.94%) 1R/3U
Gender		802 F, 259 M	62F, 37M	82F, 22M