Table 2.

Multivariable logistic regression analysis of the association between PCG and favorable outcomes (mRS ≤ 2 at 90 days), adjusted or not for NIHISS scores

	mRS (90 days) ≤2, OR (95% CI)	p	AIC	BIC
Model 1
Age	0.887 (0.772–1.020)	.092	34.628	35.648
Preoperative NIHSS	0.850 (0.693–1.044)	.121
Recanalization (mTICI ≥ 2b)	6.052 (0.348–105.183)	.217
Primary collateral grade	3.331 (0.781–14.204)	.081
Model 2
Age	0.887 (0.780–1.008)	.065	34.997	35.762
Recanalization (mTICI ≥ 2b)	8.385 (0.623–112.937)	.109
Primary collateral grade	5.278 (1.318–21.131)	.019

In model 1 of the multivariable logistic regression analysis, the primary collateral grade was analyzed along with age, recanalization, and preoperative NIHSS.

In model 2 of the multivariable logistic regression analysis, the primary collateral grade was analyzed along with age and recanalization but not preoperative NIHSS.