Table 6.
Effect measure modification of the PM2.5-MI in prior year association by select covariates
| Subjects (%) | Odds ratio | 95% CI | LRT p-value | |
|---|---|---|---|---|
| Age (years) | ||||
| <65 | 3442 (60.6) | 1.12 | 0.99, 1.26 | |
| ≥65 | 2237 (39.4) | 1.19 | 1.01, 1.40 | 0.55 |
| Gender | ||||
| Male | 3471 (61.1) | 1.13 | 1.00, 1.27 | |
| Female | 2208 (38.9) | 1.18 | 0.99, 1.39 | 0.67 |
| Race | ||||
| Non-Hispanic White | 4146 (73.0) | 1.18 | 1.05, 1.33 | |
| African American | 1204 (21.2) | 1.02 | 0.84, 1.23 | |
| Othera | 329 (5.8) | 1.25 | 0.77, 2.02 | 0.38 |
| History of smoking | ||||
| Yes | 2664 (46.9) | 1.22 | 1.07, 1.40 | |
| No | 3015 (53.1) | 1.06 | 0.92, 1.22 | 0.15 |
| Body mass index (kg/m2) | ||||
| <18.5 (Underweight) | 80 (1.4) | 1.81 | 0.64, 5.15 | |
| <25 (Under/ normal weight) | 1187 (21.0) | 1.41 | 1.11, 1.79 | |
| 25.0-29.9 (Overweight) | 1987 (35.2) | 1.05 | 0.91, 1.23 | |
| ≥30.0 (Obese) | 2399 (42.4) | 1.10 | 0.95, 1.28 | 0.15 |
| History of diabetes | ||||
| Yes | 1660 (29.2) | 1.02 | 0.87, 1.20 | |
| No | 4019 (70.8) | 1.21 | 1.07, 1.36 | 0.09 |
| History of hypertension | ||||
| Yes | 3882 (68.4) | 1.14 | 1.02, 1.27 | |
| No | 1797 (31.6) | 1.17 | 0.97, 1.41 | 0.81 |
| Urban/ rural status | ||||
| Urban | 3110 (54.8) | 1.09 | 0.96, 1.24 | |
| Rural | 2569 (45.2) | 1.25 | 1.07, 1.45 | 0.18 |
| Educational attainmentc | ||||
| Low | 2290 (40.3) | 1.10 | 0.95, 1.28 | |
| High | 3389 (59.7) | 1.15 | 1.02, 1.30 | 0.65 |
a
Other race/ethnicity includes Native American, Hispanic, Asian, and unknown.
b
Urban status was defined as living in a block group that was ≥50% urban.
c
Low educational attainment includes those who live in block groups where ≥25% of males and females have less than a high school education.