Table 3. Univariate and Multivariate Analysis of Imaging Modality, Baseline Characteristics, and Metrics With 90-Day Ordinal Modified Rankin Scale Score Shift.
| Characteristic | Univariate | Multivariatea | ||
|---|---|---|---|---|
| Odds ratio (95% CI) | P value | Odds ratio (95% CI) | P value | |
| Imaging modality | ||||
| Computed tomography | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| Computed tomography perfusion | 1.13 (0.92-1.38) | .24 | 0.95 (0.77-1.17) | .64 |
| Magnetic resonance imaging | 0.95 (0.75-1.19) | .64 | 0.95 (0.80-1.13) | .55 |
| Age | 0.97 (0.96-0.98) | <.001 | 0.97 (0.96-0.99) | <.001 |
| Baseline National Institutes of Health Stroke Scale score | 0.89 (0.88-0.91) | <.001 | 0.91 (0.89-0.92) | <.001 |
| Female | 0.87 (0.73-1.05) | .14 | 0.97 (0.78-1.20) | .75 |
| Baseline Modified Rankin Scale score | ||||
| 0 | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| 1 | 0.56 (0.45-0.70) | <.001 | 0.68 (0.54-0.86) | .001 |
| 2 | 0.36 (0.27-0.48) | <.001 | 0.48 (0.34-0.65) | <.001 |
| Hypertension | 0.65 (0.55-0.75) | <.001 | 0.89 (0.74-1.07) | .23 |
| Atrial fibrillation | 0.64 (0.56-0.74) | <.001 | 1.0 (0.87-1.14) | .94 |
| Diabetes | 0.77 (0.62-0.96) | .02 | 0.81 (0.65-1.01) | .06 |
| Transfer | 0.78 (0.71-0.86) | <.001 | 0.79 (0.67-0.92) | .002 |
| Intravenous tissue-type plasminogen activator | 0.92 (0.77-1.11) | .38 | 1.08 (0.86-1.36) | .51 |
| Alberta Stroke Program Early Computed Tomography Score | 1.15 (1.10-1.20) | <.001 | 1.18 (1.13-1.24) | <.001 |
| Site of occlusion | ||||
| Middle cerebral artery M1 | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| Middle cerebral artery M2 | 1.47 (1.21-1.79) | <.001 | 1.16 (0.93-1.44) | .19 |
| Internal carotid artery | 0.74 (0.63-0.87) | <.001 | 0.83 (0.69-1.0) | .049 |
| Time last seen well to puncture | 1.0 (1.0-1.0) | .88 | 1.0 (0.99-1.0) | .67 |
a
A total of 1530 patients had complete information on all the factors in the multivariate model.