Table 4.
Non-Hispanics unadjusted and adjusteda current asthma prevalenceb and adjusted prevalence rate ratios among adults, by selected characteristics.
| Non-Hispanics living in United States – BRFSSc
|
Non-Hispanics living in United States – NHISd
|
|||
|---|---|---|---|---|
| Unadjusted current asthma prevalence % (95% CI)f | Adjusted current asthma prevalencee % (95% CI)f | Unadjusted current asthma prevalence % (95% CI)f | Adjusted current asthma prevalencee % (95% CI)f | |
| Total | 8.8 (8.7–8.9) | 8.8 (8.7–8.9) | 8.0 (7.7–8.3) | 8.0 (7.7–8.3) |
| Sex | p<0.0001g | p<0.0001g | ||
| Male | 6.7 (6.5–6.9) | 6.7 (6.5–6.9) | 5.9 (5.5–6.2) | 5.9 (5.5–6.3) |
| Female | 10.9 (10.7–11.0) | 10.8 (10.7–11.0) | 10.0 (9.5–10.4) | 9.9 (9.5–10.3) |
| Age, year range | p<0.0001g | p=0.5115g | ||
| 18–34 | 10.0 (9.7–10.2) | 9.9 (9.6–10.3) | 8.3 (7.7–8.8) | 8.5 (8.0–9.1) |
| 35–44 | 8.3 (8.1–8.5) | 8.6 (8.4–8.9) | 7.9 (7.3–8.5) | 8.1 (7.5–8.8) |
| 45–54 | 8.7 (8.5–8.9) | 8.7 (8.5–8.9) | 7.8 (7.2–8.4) | 7.8 (7.2–8.4) |
| 55–64 | 9.1 (8.9–9.3) | 8.8 (8.7–9.1) | 8.3 (7.7–8.9) | 8.0 (7.4–8.6) |
| 65+ | 7.8 (7.7–8.0) | 7.3 (7.1–7.4) | 7.7 (7.1–8.3) | 7.1 (6.5–7.8) |
| Education level | p<0.0001g | p<0.0001g | ||
| High School (HS) graduate or less | 9.9 (9.7–10.1) | 8.6 (8.4–8.8) | 8.4 (7.9–8.8) | 7.7 (7.2–8.1) |
| Some college | 9.4 (9.2–9.7) | 9.0 (8.8–9.3) | 8.8 (8.3–9.3) | 8.5 (8.0–9.0) |
| College four years or more | 7.4 (7.3–7.6) | 8.7 (8.5–8.9) | 6.7 (6.3–7.2) | 7.7 (7.2–8.3) |
| Household Income | p<0.0001g | p<0.0001g | ||
| <$15 000 | 15.5 (15.1−16.0) | 14.3 (13.8−14.8) | 11.7 (10.9−12.5) | 11.2 (10.4−12.0) |
| $15 000−$24 999 | 11.6 (11.3−11.9) | 11.0 (10.7−11.4) | 9.1 (8.3−10.0) | 8.8 (8.0−9.8) |
| $25 000−$49 999 | 8.6 (8.3−8.8) | 8.3 (8.1−8.5) | 8.6 (8.0−9.2) | 8.3 (7.8−8.9) |
| $50 000−$74 999 | 7.7 (7.4−7.9) | 7.6 (7.3−7.8) | 7.1 (6.5−7.8) | 7.0 (6.4−7.6) |
| ≥$75 000 | 7.0 (6.8−7.1) | 7.3 (7.1−7.5) | 6.6 (6.1−7.1) | 6.8 (6.4−7.4) |
| Body mass index (BMI) | p<0.0001g | p<0.0001g | ||
| Obese | 12.2 (12.0−12.4) | 11.8 (11.5−12.0) | 11.0 (10.4−11.6) | 10.9 (10.3−11.5) |
| Non-obese | 7.5 (7.4−7.7) | 7.6 (7.5−7.7) | 6.8 (6.5−7.1) | 6.8 (6.5−7.2) |
| Cigarette smoking status | p<0.0001g | p<0.0001g | ||
| Current smoker | 10.7 (10.4−10.9) | 9.6 (9.3−9.9) | 9.0 (8.4−9.6) | 8.8 (8.1−9.4) |
| Former smoker | 9.0 (8.8−9.2) | 9.4 (9.2−9.7) | 8.7 (8.2−9.3) | 9.1 (8.5−9.8) |
| Nonsmoker | 8.2 (8.0−8.3) | 8.1 (8.0−8.3) | 7.3 (7.0−7.7) | 7.2 (6.9−7.5) |
Adjusted for age, sex, education, income, obesity and cigarette smoking status.
Includes persons who answered “yes” to the questions, “Have you ever been told by a doctor or other health professional that you had asthma?” and “Do you still have asthma?”
2008–2010 Behavioral Risk Factor Surveillance System data for Non-Hispanics in 50 states and District of Columbia.
2008–2010 National Health Interview Survey data for Non-Hispanics in 50 states and District of Columbia.
Adjusted for age, sex, education, income, obesity and cigarette smoking status.
Using the method of examining overlap between 95% confidence intervals, unadjusted and adjusted current asthma prevalence from BRFSS were compared with the corresponding prevalence from NHIS. Non-overlapping confidence intervals indicate statistical significance.
p Values for the chi-square test for independence to determine whether there is a significant relationship between two categorical variables.