Table 2 Logistic regression models predictive of grave outcomes, according to the Willisian collateral status.

From: Predictors and prognoses of Willisian collateral failure during mechanical thrombectomy

Groups

Odds ratio (95% CI)

p value

Model 1 (total population)a

Willisian collateral status

 

0.003

WCS

Reference

 

IWF

2.44 [1.15–5.20]

0.020

DWF

2.82 [1.34–5.95]

0.007

Model 2 (DWI volume adjusted, N = 484)b

Willisian collateral status

 

0.022

WCS

Reference

 

IWF

1.49 [0.54–4.09]

0.439

DWF

3.21 [1.38–7.49]

< 0.001

  1. DWI, diffusion weighted images; DWF, dynamic Willisian collateral failure; IWF, initial Willisian collateral failure; WCS, Willisian collateral sparing.
  2. aAdjusted by age, sex, premorbid modified Rankin score, admission National Institute of Health Stroke Scale score, onset-to-puncture time, intravenous administration of tissue plasminogen activator, and final successful reperfusion.
  3. bAdjusted by baseline DWI volume, age, sex, premorbid modified Rankin score, admission National Institute of Health Stroke Scale score, onset-to-puncture time, intravenous administration of tissue plasminogen activator, and final successful reperfusion.
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