Table III.
Adult current asthma prevalence by 6-level urban–rural classification for sociodemographic characteristics—United States, 2020
| Characteristic | No. | Prevalence, % (95% CI) |
P value (Wald χ2 test) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Overall | Large central metro | Large fringe metro | Medium metro | Small metro | Micropolitan | Noncore | |||
| Total | 37,366 | 9.2 (9.0-9.4) | 8.8 (8.4-9.3) | 8.6 (8.2-9.0) | 9.7 (9.3-10.1) | 9.9 (9.3-10.5) | 10.2 (9.7-10.7) | 9.0 (8.5-9.6) | <.001∗ |
| Sex | |||||||||
| Male | 11,959 | 6.5 (6.2-6.7) | 6.1 (5.5-6.6) | 6.3 (5.8-6.8) | 6.8 (6.3-7.3) | 7.0 (6.2-7.8) | 7.4 (6.7-8.1) | 6.4 (5.7-7.0) | .029 |
| Female | 25,407 | 11.8 (11.4-12.1) | 11.4 (10.7-12.2) | 10.8 (10.2-11.4) | 12.6 (11.9-13.2) | 12.8 (11.9-13.6) | 12.8 (12.1-13.6) | 11.6 (10.7-12.5) | <.001∗ |
| Age | |||||||||
| 18-24 years | 2596 | 10.4 (9.7-11.2) | 10.6 (8.8-12.4) | 9.5 (8.1-10.8) | 11.1 (9.6-12.5) | 10.6 (9.0-12.3) | 11.4 (9.4-13.4) | 9.2 (7.0-11.4) | .434 |
| 25-34 years | 4111 | 8.8 (8.3-9.3) | 8 (7.0-9.0) | 8.4 (7.5-9.4) | 9.1 (8.2-10.0) | 10.3 (8.3-12.2) | 10.0 (8.4-11.5) | 9.9 (7.7-12.2) | .129 |
| 35-44 years | 4810 | 8.8 (8.3-9.3) | 8.3 (7.2-9.3) | 8.4 (7.5-9.3) | 9.9 (8.8-11.0) | 9.8 (8.4-11.2) | 9.7 (8.5-11.0) | 7.5 (6.3-8.7) | .020 |
| 45-54 years | 6015 | 9.8 (9.3-10.3) | 8.5 (7.4-9.5) | 9.4 (8.4-10.5) | 11.1 (9.9-12.4) | 11.6 (9.8-13.3) | 10.6 (9.5-11.7) | 10.4 (9.1-11.6) | <.001∗ |
| 55-64 years | 7827 | 9.9 (9.4-10.5) | 9.9 (8.5-11.3) | 8.8 (8.0-9.6) | 10.6 (9.5-11.7) | 9.9 (8.9-10.9) | 11.9 (10.5-13.2) | 9.9 (8.8-11.1) | <.001∗ |
| 65+ years | 11,402 | 8.3 (7.9-8.7) | 8.9 (7.8-10.1) | 7.8 (7.2-8.5) | 7.9 (7.3-8.5) | 8.6 (7.6-9.6) | 8.9 (8.1-9.6) | 8.0 (7.3-8.7) | .202 |
| Race and ethnicity | 36,553 | ||||||||
| White, non-Hispanic | 27,418 | 9.4 (9.2-9.6) | 9.1 (8.4-9.7) | 8.9 (8.5-9.3) | 10.0 (9.5-10.5) | 9.9 (9.3-10.5) | 9.9 (9.4-10.5) | 8.9 (8.3-9.5) | <.001∗ |
| Black, non-Hispanic | 3465 | 11.4 (10.7-12.1) | 12 (10.8-13.2) | 10.4 (9.1-11.7) | 11.0 (9.5-12.5) | 11.3 (9.4-13.3) | 13.3 (10.4-16.3) | 10.2 (7.9-12.4) | .314 |
| Other, non-Hispanic | 2991 | 8.9 (7.1-8.9) | 7.3 (5.6-9.1) | 6.3 (5.0-7.6) | 9.4 (7.9-10.9) | 10.6 (8.6-12.7) | 11.6 (9.7-13.5) | 13.6 (10.8-16.3) | <.001∗ |
| Hispanic | 2679 | 7.6 (6.9-8.2) | 7.4 (6.3-8.4) | 7.2 (5.9-8.4) | 8.0 (6.8-9.1) | 9.1 (6.2-12.0) | 8.8 (6.6-10.9) | 5.2 (3.4-7.1) | .109 |
| Educational attainment | 37,236 | ||||||||
| Not a high school graduate | 3052 | 9.9 (9.2-10.6) | 8.6 (7.2-10.1) | 9.5 (8.0-11.0) | 9.9 (8.7-11.1) | 11.4 (9.2-13.5) | 13.8 (11.7-15.8) | 10.2 (8.6-11.9) | <.001∗ |
| High school graduate | 9758 | 8.7 (8.3-9.0) | 8.5 (7.5-9.5) | 8.3 (7.6-9.0) | 9 (8.2-9.7) | 9.4 (8.5-10.4) | 8.9 (8.1-9.7) | 8.3 (7.6-9.1) | .348 |
| Some college | 11,519 | 10.6 (10.2-11.1) | 10.9 (9.8-12.0) | 9.9 (9.1-10.7) | 11.0 (10.1-11.9) | 10.8 (9.6-12.0) | 11.0 (10.1-12.0) | 10 (8.7-11.2) | .318 |
| College graduate | 12,907 | 7.9 (7.6-8.2) | 7.5 (7.0-8.1) | 7.5 (7.0-7.9) | 8.9 (8.4-9.5) | 8.6 (7.9-9.3) | 8.6 (7.8-9.4) | 7.6 (6.9-8.4) | <.001∗ |
| Insurance coverage | 37,193 | ||||||||
| Yes | 34,699 | 9.6 (9.4-9.8) | 9.5 (8.9-10.0) | 8.0 (8.5-9.3) | 10.1 (9.6-10.5) | 10.3 (9.6-10.9) | 10.3 (9.8-10.8) | 9.4 (8.8-10.0) | <.001∗ |
| No | 2494 | 6.5 (6.0-7.0) | 5.1 (4.3-5.9) | 6.1 (4.9-7.3) | 7.5 (6.4-8.6) | 7.7 (6.3-9.2) | 9.6 (7.8-11.5) | 6.5 (5.2-7.8) | <.001∗ |
| Ratio of family income to FPL† | 37,366 | ||||||||
| <100% | 6019 | 12.4 (11.7-13.1) | 10.3 (9.0-11.6) | 11.9 (10.4-13.5) | 13.5 (12.2-14.9) | 14.2 (12.3-16.1) | 15.7 (14.1-17.3) | 14.1 (11.7-16.4) | <.001∗ |
| 100% to 200% | 7443 | 10.2 (9.7-10.7) | 9 (8.0-10.1) | 10.4 (9.3-11.6) | 10.7 (9.8-11.7) | 11.8 (10.3-13.4) | 11.2 (10.1-12.3) | 9.3 (8.3-10.3) | <.001∗ |
| >200% | 16,723 | 8.0 (7.7-8.3) | 8.1 (7.5-8.8) | 7.7 (7.3-8.2) | 8.6 (8.0-9.2) | 8.1 (7.3-9.0) | 7.9 (7.2-8.6) | 6.6 (6.1-7.2) | <.001∗ |
| Unknown | 7181 | 9.1 (8.6-9.5) | 9.2 (8.0-10.5) | 8.2 (7.5-9.0) | 8.9 (8.1-9.8) | 9.4 (8.3-10.4) | 10.3 (9.1-11.5) | 9.8 (8.6-10.9) | .064 |
Source: Centers for Disease Control and Prevention, 2020 BRFSS. Current asthma refers to respondents with a “yes” answer to both questions: (1) Has a doctor, nurse, or other health professional ever told you that you had asthma? and (2) Do you still have asthma?
∗
Statistically significant at P ≤ .01.
†
FPL is defined by the US Department of Health and Human Services’ poverty guidelines.23