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Table 2: 
Multiple logistic regression analyses for predictors of poor 3-month outcome
VariablesOR95% CIP Value
Model 1a
    Poor LC flow0.280.07–1.19.085
    Absent ipsilateral OA0.450.13–1.54.201
    NIHSS ≥ 516.441.90–142.18.011
Model 2b
    Absent ipsilateral OA or poor LC flow4.501.35–14.93.014
    NIHSS ≥ 519.212.22–166.19.007
  • ↵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.