Table 2:

Logistic regression analysis for significant hemorrhage (volume >25 mL)

Predictive factor	OR (95% CI)	Estimate (SE)	P > χ2*
Poor pial collateral score	13.1 (2.84–96.0)	2.57 (0.860)	.0028
Platelets <200K	8.14 (1.73–60.3)	2.10 (0.868)	.0157
Intercept		0.190 (0.520)	.715

Note:—OR indicates odds ratio; CI, confidence interval.

^*Variables tested with P > .05 were rejected using backward selection (whole-model test, P < .0001; r² = 0.202).