Table 2.
Regular Aspirin Use by Socioeconomic and Clinical Characteristics
| Characteristics | All Participants | All Participants | Participants without contraindication to aspirin | |
|---|---|---|---|---|
| Unadjusted | Adjusteda | Adjusted | ||
| Percentage (%) | OR (95% CI)b | OR (95% CI) | ||
| Gender | Women | 62.4 | 0.62 (0.48–0.79) | 0.68 (0.48–0.97) |
| Men | 75.6 | 1.00 | 1.00 | |
| Age, years | <65 | 71.4 | 0.91 (0.67–1.24) | 0.57 (0.37–0.86) |
| 65–74 | 74.3 | 1.00 | 1.00 | |
| >75 | 65.9 | 0.74 (0.54–1.01) | 0.58 (0.38–0.88) | |
| Race/ethnicity | Non-Hispanic Black | 67.3 | 0.82 (0.58–1.18) | 0.66 (0.41–1.07) |
| Hispanic | 63.8 | 0.85 (0.55–1.32) | 0.56 (0.33–0.95) | |
| Other | 56.1 | 0.52 (0.29–0.92) | 0.30 (0.15–0.58) | |
| Non-Hispanic White | 71.9 | 1.00 | 1.00 | |
| Insurance | Uninsured | 61.3 | 0.72 (0.41–1.28) | 0.55 (0.29–1.05) |
| Public | 66.8 | 0.97 (0.73–1.28) | 0.96 (0.64–1.42) | |
| Private | 73.1 | 1.00 | 1.00 | |
| Percent of federal poverty level | >400% | 76.5 | 1.80 (1.24–2.62) | 2.85 (1.68–4.86) |
| 200%-399% | 74.4 | 1.70 (1.19–2.43) | 1.94 (1.21–3.12) | |
| 125%-199% | 66.2 | 1.31 (0.91–1.88) | 1.60 (0.98–2.61) | |
| 0-124% | 59.0 | 1.00 | 1.00 | |
| Education level | <High school education | 67.4 | 0.93 (0.67–1.29) | 1.04 (0.67–1.62) |
| High school graduate | 68.9 | 0.82 (0.60–1.12) | 0.82 (0.55–1.23) | |
| >High school education | 75.1 | 1.00 | 1.00 | |
| Census region | Northeast | 73.9 | 1.40 (0.91–2.15) | 1.41 (0.81–2.43) |
| Midwest | 71.5 | 1.24 (0.83–1.85) | 1.27 (0.76–2.10) | |
| South | 69.5 | 1.08 (0.74–1.58) | 1.41 (0.88–2.26) | |
| West | 67.6 | 1.00 | 1.00 | |
| Diabetes mellitus | Yes | 72.1 | 1.15 (0.87–1.52) | 1.45 (0.97–2.16) |
| No | 69.8 | 1.00 | 1.00 | |
| Asthma | Yes | 61.2 | 0.72 (0.52–1.00) | 0.78 (0.52–1.18) |
| No | 71.9 | 1.00 | 1.00 | |
| Prior Myocardial Infarction | Yes | 71.3 | 1.16 (0.91–1.50) | 1.38 (1.00–1.91) |
| No | 68.6 | 1.00 | 1.00 | |
| Hypertension | Yes | 72.1 | 1.50 (1.16–1.95) | 2.08 (1.48–2.93) |
| No | 66.1 | 1.00 | 1.00 | |
aThe adjusted multivariate model included gender, insurance status, percent of federal poverty level, education level, race/ethnicity, age, diabetes mellitus, asthma, prior myocardial infarction, hypertension, and census region. All results have been adjusted for the complex design of the survey and analytic weights.
bOR = odds ratio, CI = confidence interval.