Multiple logistic regression analyses for predictors of poor 3-month outcome
| Variables | OR | 95% CI | P Value |
|---|---|---|---|
| Model 1a | |||
| Poor LC flow | 0.28 | 0.07–1.19 | .085 |
| Absent ipsilateral OA | 0.45 | 0.13–1.54 | .201 |
| NIHSS ≥ 5 | 16.44 | 1.90–142.18 | .011 |
| Model 2b | |||
| Absent ipsilateral OA or poor LC flow | 4.50 | 1.35–14.93 | .014 |
| NIHSS ≥ 5 | 19.21 | 2.22–166.19 | .007 |
↵a In model 1 of multiple logistic regression analysis, the ipsilateral OA and LC were independently analyzed along with the NIHSS.
↵b In model 2, both the ipsilateral OA and LC were analyzed together (presence of both secondary collaterals vs absence of either of them or both) along with the NIHSS for predicting 3-month outcome.