Table 3. Dose of aspirin taken for prophylaxis.
| # of taking | Dose (percent) | P value | |||
|---|---|---|---|---|---|
| 80-175mg | 325mg or more | ||||
| Total | 5242 | 75.0 | 25.0 | ||
| Region | Other regions | 2416 | 74.8 | 25.2 | 0.7885 |
| Stroke Belt | 2821 | 75.1 | 24.9 | ||
| Race | White | 3347 | 77.3 | 22.7 | <0.0001 |
| Black | 1894 | 70.9 | 29.1 | ||
| Gender | Male | 2682 | 71.1 | 28.9 | <0.0001 |
| Female | 2560 | 79.1 | 20.9 | ||
| Age Group | 45-54 | 322 | 74.2 | 25.8 | 0.0665 |
| 55-64 | 2052 | 73.5 | 26.5 | ||
| 65-74 | 1976 | 77.1 | 22.9 | ||
| 75-84 | 807 | 74.6 | 25.4 | ||
| 85+ | 84 | 69.1 | 31.0 | ||
| Income | <$20K | 788 | 68.8 | 31.2 | <0.0001 |
| $20K-$34K | 1175 | 75.0 | 25.0 | ||
| $35K-74K | 1683 | 75.0 | 25.0 | ||
| $75+ | 983 | 78.2 | 21.8 | ||
| Years of Education | LT HS | 551 | 67.7 | 32.3 | <0.0001 |
| HS | 1265 | 74.6 | 25.5 | ||
| Some College | 1349 | 74.2 | 25.8 | ||
| College+ | 2075 | 77.7 | 22.3 | ||
| Perceived Health | Excellent | 944 | 77.9 | 22.1 | 0.0074 |
| Very good | 1736 | 76.3 | 23.7 | ||
| Good | 1814 | 73.6 | 26.4 | ||
| Fair | 621 | 72.5 | 27.5 | ||
| Poor | 117 | 66.7 | 33.3 | ||
| Hypertension | No | 1921 | 76.2 | 23.8 | 0.1231 |
| Yes | 3291 | 74.3 | 25.7 | ||
| Diabetes | No | 3893 | 75.8 | 24.3 | 0.0150 |
| Yes | 1201 | 72.3 | 27.7 | ||
| Dyslipidemia | No | 1884 | 75.0 | 25.0 | 0.8538 |
| Yes | 3217 | 74.8 | 25.2 | ||
| Smoking Status | Never | 2329 | 78.2 | 21.8 | <0.0001 |
| Past | 2292 | 74.0 | 26.1 | ||
| Current | 600 | 66.2 | 33.8 | ||
| Alcohol Use | Never | 1447 | 76.0 | 24.1 | 0.0046 |
| Past | 837 | 70.5 | 29.5 | ||
| Current | 2958 | 75.8 | 24.2 | ||
| Framingham Coronary Risk Score | <Q1 | 977 | 80.5 | 19.6 | <0.0001 |
| Q1-Median | 1288 | 78.3 | 21.7 | ||
| Median-Q3 | 1400 | 75.4 | 24.6 | ||
| Q3 or higher | 1377 | 67.3 | 32.8 | ||
| Framingham Stroke Risk Function | <Q1 | 446 | 80.3 | 19.7 | 0.6046 |
| Q1-Median | 714 | 80.4 | 19.6 | ||
| Median-Q3 | 849 | 78.2 | 21.8 | ||
| Q3 or higher | 927 | 78.3 | 21.7 | ||
These cross-sectional associations are described in a national cohort (with oversampling of the southeastern “stroke belt”) of African American and white participants evaluated between January 2003 and August 2006.