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Table 4: Logistic regression for prediction of thrombus extension and shortening, including baseline tMIP score of collaterals in the model
OR 95% CI P Value
For thrombus extension (set without change as reference) 
    NIHSS score 1.162 0.965–1.399 .113
    Baseline thrombus length (mm) 1.076 0.953–1.216 .238
    Baseline tMIP score of collaterals 0.759 0.341–1.690 .499
For thrombus shortening (set without change as reference) 
    NIHSS score 0.719 0.563–0.917 .008
    Baseline thrombus length (mm) 1.210 1.039–1.409 .014
    Baseline tMIP score of collaterals 0.571 0.212–1.536 .267

	OR	95% CI	P Value
For thrombus extension (set without change as reference)
NIHSS score	1.162	0.965–1.399	.113
Baseline thrombus length (mm)	1.076	0.953–1.216	.238
Baseline tMIP score of collaterals	0.759	0.341–1.690	.499
For thrombus shortening (set without change as reference)
NIHSS score	0.719	0.563–0.917	.008
Baseline thrombus length (mm)	1.210	1.039–1.409	.014
Baseline tMIP score of collaterals	0.571	0.212–1.536	.267