Table 3. Bivariate Analysis to Determine Predictors of Aspirin Use Among Men Aged 45 to 79 Years With at Least One Risk Factor for Myocardial Infarction in North Carolina (n = 1,182), BRFSS, 2013.
| Predictor | na | Weightedb Prevalence (%) of Aspirin Use (95% CI) | Prevalence Ratio (95% CI) | P Valuec |
|---|---|---|---|---|
| Age, y | ||||
| 45–54 | 334 | 38.8 (32.1–45.5) | 1.0 [Reference] | .03 |
| 55–64 | 433 | 47.3 (41.5–53.2) | 1.22 (0.98–1.50) | |
| 65–74 | 324 | 52.2 (45.0–59.3) | 1.34 (1.08–1.67) | |
| 75–79 | 91 | 43.6 (30.7–56.6) | 1.12 (0.80–1.58) | |
| Race/ethnicity | ||||
| White non-Hispanic | 830 | 53.1 (46.7–59.5) | 1.0 [Reference] | .22 |
| Black non-Hispanic | 205 | 47.8 (34.3–61.2) | 0.90 (0.66–1.22) | |
| Hispanic | 39 | 30.6 (9.0–52.1) | 0.57 (0.28–1.17) | |
| Other non-Hispanic | 96 | 58.5 (35.8–81.2) | 1.10 (0.73–1.65) | |
| Education | ||||
| Less than high school | 153 | 42.9 (29.0–56.7) | 1.0 [Reference] | .81 |
| High school | 353 | 56.4 (46.8–66.0) | 1.32 (0.91–1.89) | |
| More than high school | 674 | 51.4 (44.0–58.8) | 1.20 (0.84–1.71) | |
| General health status | ||||
| Fair or poor | 272 | 47.2 (39.8–54.7) | 1.0 [Reference] | .47 |
| Good, very good, or excellent | 905 | 44.1 (39.8–48.4) | 0.93 (0.77–1.12) | |
| Health insurance coverage | ||||
| No coverage at all | 141 | 36.2 (26.6–45.7) | 1.0 [Reference] | .06 |
| Some kind of coverage | 1,036 | 46.2 (42.2–50.2) | 1.28 (0.97–1.68) | |
| Limited healthcare access due to cost | ||||
| No | 1,039 | 44.5 (40.5–48.5) | 1.0 [Reference] | .71 |
| Yes | 139 | 46.5 (36.3–56.8) | 1.05 (0.82–1.33) | |
| Last routine medical checkup | ||||
| A year or more ago | 208 | 40.4 (32.1–48.7) | 1.0 [Reference] | .23 |
| Within the last 12 months | 961 | 46.2 (42.0–50.4) | 1.14 (0.91–1.43) | |
| Body mass index, kg/m2 | ||||
| Normal weight (18.0–24.9) | 215 | 43.2 (30.5–55.9) | 1.0 [Reference] | .33 |
| Overweight (25.0–29.9) | 539 | 50.3 (42.3–58.2) | 1.16 (0.83–1.62) | |
| Obese (≥30.0) | 400 | 56.5 (47.3–65.8) | 1.31 (0.93–1.83) | |
Abbreviations: BRFSS, Behavioral Risk Factor Surveillance System; CI, confidence interval.
a
Totals for some subcategories do not add to overall sample size (1,564) because of missing data
b
Prevalence estimates are weighted to the overall population of men aged 45 to 79 in North Carolina using precalculated complex weight variables that are included in the BRFSS dataset.
c
P value for Pearson design–based F statistic obtained from survey-weighted cross tabulation of aspirin use and potential predictors.