Table 2.
Logistic regression model including Compensation Index (CI) in predicting good collateral status as defined by DSA ASITN CS of 3 or greater.
| Variables | Univariate Analysis Unadjusted Odds Ratio (OR (95% Confidence Interval)) | Multivariate Logistic Regression Analysis | |||
|---|---|---|---|---|---|
| Adjusted OR | 95% Confidence Interval | p Value | |||
| Lower | Upper | ||||
| Compensation Index (CI) | 1.39 (1.10–1.74) | 1.387 | 1.090 | 1.766 | 0.008 |
| Age | 0.99 (0.98–1.01) | 0.989 | 0.966 | 1.013 | 0.366 |
| Sex | 0.80 (0.49–1.30) | 0.932 | 0.493 | 1.761 | 0.827 |
| Race | 0.99 (0.72–1.40) | 0.917 | 0.579 | 1.453 | 0.714 |
| Hypertension | 0.74 (0.41–1.27) | 0.625 | 0.289 | 1.354 | 0.234 |
| Hyperlipidemia | 1.05 (0.65–1.70) | 1.136 | 0.599 | 2.155 | 0.696 |
| Diabetes Mellitus | 1.16 (0.68–2.00) | 1.159 | 0.555 | 2.423 | 0.694 |
| Heart Disease | 1.01 (0.63–1.64) | 0.914 | 0.446 | 1.873 | 0.806 |
| Atrial Fibrillation | 1.17 (0.72–1.91) | 1.548 | 0.740 | 3.236 | 0.245 |
| Prior Stroke or Transient Ischemic Attack | 1.06 (0.59–1.91) | 1.048 | 0.486 | 2.258 | 0.906 |
| Intravenous Tissue Plasminogen Activator Administered (IV tPA) | 1.24 (0.76–2.04) | 1.298 | 0.676 | 2.492 | 0.433 |
| Admission National Institute of Health (NIH) Stroke Scale | 0.96 (0.93–0.99) | 0.957 | 0.912 | 1.005 | 0.076 |
| Premorbid Modified Rankin Score (mRS) | 1.17 (0.94–1.46) | 1.312 | 0.963 | 1.787 | 0.085 |
| Admission Alberta Stroke Program Early CT Score (ASPECTS) | 1.25 (1.06–1.45) | 1.143 | 0.937 | 1.395 | 0.188 |