Table 4.
Cox Regression Analysis of Sex Differences in Achieving 90% of Prestroke Physical Functioning 6 Months After Stroke, Kansas City Stroke Study, 1995–1998
| Factor | Hazards Ratioa (95% Confidence Interval) | P |
|---|---|---|
| Female sex | 0.96 (0.40-1.57) | .82 |
| Age (years) | 0.97 (0.95-0.98) | <.001 |
| Prestroke physical function | 0.97 (0.97-0.98) | <.001 |
| Stroke severity (NIHSS) | 0.82 (0.78-0.87) | <.001 |
| Depressive status | 0.42 (0.27-0.67) | <.001 |
a
Estimated with Cox proportional hazards regression while adjusting for other factors in the model. Factors removed from the models because of statistical insignificance are medical comorbidities, including atrial fibrillation and myocardial infarction, and unknown depressive status (i.e., unscored Geriatric Depression Scale). Prestroke physical function and National Institutes of Health Stroke Scale (NIHSS) were treated as continuous variables.