Table 4.

Yearly ICH Recurrence Rates and Predictive Performance of the APOE-MRI Risk Classification Scheme in the ERICH Validation Dataset.

Study Participants	No. of ICH Survivors	Yearly ICH Recurrence Rate (95% CI)			p	Predictive Performance
		High Risk	Medium Risk	Low Risk		Sensitivity (95% CI)	Specificity (95% CI)	AUC (95% CI)
All ICH Survivors
- all participants	61	6.6 (5.2 – 9.9)	2.5 (1.8 – 2.8)	0.9 (0.4 – 1.5)	<0.001	0.90 (0.54 – 0.99)	0.91 (0.76 – 0.98)	0.91 (0.86 – 0.94)
- no OAT exposure	51	6.9 (5.4 – 10.4)	2.3 (1.7 – 2.7)	1.0 (0.6 – 1.3)	<0.001	0.92 (0.58 – 0.99)	0.93 (0.79 – 0.99)	0.90 (0.84 – 0.93)
Lobar ICH Survivors	38	8.8 (5.5 – 10.2)	3.3 (2.6 – 4.1)	1.1 (0.7 – 1.8)	<0.001	0.70 (0.35 – 0.92)	0.94 (0.68 – 0.99)	0.82 (0.76 – 0.90)
Non-lobar ICH Survivors	23	4.3 (3.2 – 6.9)	1.8 (1.0 – 2.9)	0.5 (0.2 – 1.0)	0.039	0.91 (0.72 – 0.98)	0.74 (0.42 – 0.95)	0.80 (0.74 – 0.84)