Table 3. Clinical and imaging characteristics stratified by CGS score.

	Poor collaterals	Intermediate collaterals	Good collaterals	p Value
	(score of 0) (n = 41)	(score of 1) (n = 16)	(score of 2) (n = 23)
Age, y	70.3 ± 11.5	71.1 ± 9.5	65.9 ± 11.8	0.241
Female, n (%)	14 (34.1)	8 (50.0)	11 (47.8)	0.413
OIT, min	176.4 ± 76.1	185.8 ± 98.0	167.1 ± 94.2	0.798
ONT, min	201.5±79.4	226.3±103.4	193.7±91.0	0.504
Baseline NIHSS score	15 (13–18.5)	12.5 (9–14)	10 (6–14)	<0.001
Baseline infarct volume, mL	92.8 (66.2–138.0)	39.6 (19.6–59.8)	37.5 (11.1–49.2)	<0.001
Baseline hypoperfusion volume, mL	192.9 (138.1–241.3)	98.6 (76.4–125.2)	100.6 (71.2–129.0)	<0.001
Baseline mismatch ratio	2.2 ± 1.2	3.6 ± 2.3	4.3 ± 4.5	0.017
Final infarct volume a, mL	52.8 (22.6–166.6)	18.3 (9.5–44.1)	16.1 (2.0–48.0)	<0.001
Recanalization a, n (%)	16(48.5)	9 (64.3)	11 (68.8)	0.156
sHT a, n (%)	6 (18.2)	1(7.1)	0 (0)	<0.001
Good outcome, n (%)	4 (9.8)	5 (31.3)	15 (65.2)	<0.001
Death, n (%)	10 (24.4)	2 (12.5)	0 (0)	0.031

^a In patients with complete follow-up imaging alone (n = 63).