Table 1.
Baseline characteristics of the Medicare linked stroke cohort and the matching non-stroke cohort.
| Variable | Stroke Cohort N=823 |
Non-stroke Cohort N=4115 |
p-value |
|---|---|---|---|
| Mean age, years (SD) | 76 (5.5) | 76 (5.5) | Matching variable |
| Female sex, n (%) | 426 (51.8) | 2130 (51.8) | Matching variable |
| Race | Matching variable |
||
| White, n (%) | 786 (95.5) | 3930 (95.5) | |
| Black, n (%) | 21 (2.6) | 105 (2.6) | |
| Other, % | 16 (1.9) | 80 (1.9) | |
| Median Income in zip | $49,942 | $42,407 | <0.0001 |
| code of residence (range) | ($15575-$95372) | ($7188-$95372) | |
| Comorbidity, n (%) | |||
| Hypertension | 537 (65.3) | 768 (18.7) | <0.0001 |
| Diabetes Mellitus | 217 (26.4) | 356 (8.7) | <0.0001 |
| Dyslipidemia | 201 (24.4) | 444 (10.8) | <0.0001 |
| COPD | 114 (13.9) | 180 (4.4) | <0.0001 |
| Gastrointestinal Ulcer | 7 (0.9) | 15 (0.4) | 0.06 |
| Myocardial Infarction | 40 (4.9) | 58 (1.4) | <0.0001 |
| Heart Failure | 71 (8.6) | 164 (4.0) | <0.0001 |
COPD = Chronic Obstructive Pulmonary Disease.