Table 5.

Threshold effect analysis of the time from the last symptom to operation on successful recanalization.

Last symptom to recanalization (10 days)	Adjusted 1 β (95% CI) P-value	Adjusted 2 β (95% CI) P-value
<5.1	0.43 (0.21, 0.88) 0.021*	0.39 (0.18, 0.84) 0.016*
>5.1	1.26 (0.81, 1.95) 0.302	1.30 (0.83, 2.05) 0.255
Efficiency shifting between <5.1 and >5.1	2.95 (1.05, 8.28) 0.040*	3.32 (1.11, 9.89) 0.032*
Likelihood ratio (LR)	0.027	0.019

Adjusted 1, adjusted for age, gender, and BMI; Adjusted 2, adjusted for age, gender, BMI, and anterior and posterior circulation vessels. *P < 0.05.