Table 2:

Angles, P values, AUCs for ROC analyses, and optimal cutoff values to differentiate TICI subgroups and Youden indices for different vessel angles^{^a}

Occlusion Pattern	Group Size	Angle	TICI 0–2a (mean)	TICI 2b/3 (mean)	P	ROC AUC	Cutoff and Youden index
Proximal (carotid T or proximal M1 segment)	125	ICA/M1	110 ± 23.8	69 ± 28.7	.000^{^b}	.872^{^d}	100° (J = 0.69)
	125	M1/M1	56 ± 29.2	29 ± 26.6	.001^{^b}	.759^{^d}	36° (J = 0.40)
Distal (distal M1 or proximal M2 segment)	36	M1/M2	117 ± 34.3	67 ± 29.5	.006^{^c}	.865^{^d}	97° (J = 0.64)

Note:—AUC indicates area under the curve.
↵a P values significant at P < .05.
↵b Corrected for age, sex, and IV rtPA (yes/no).
↵c Corrected for age.
↵d Significant at P < .005.