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. Author manuscript; available in PMC: 2015 Aug 31.
Published in final edited form as: J Asthma. 2013 Jun 5;50(6):583–589. doi: 10.3109/02770903.2013.794238

Table 3.

Current asthma prevalence and adjusted prevalence rate ratios by selected predictors among racial and ethnic adult populations—2009–2010 Behavioral Risk Factor Surveillance System data—American Indian/Alaska Native (AI/AN), Asian/Pacific Islander, Other race.

AI/ANα (n = 11,916)
Asian/Pacific Islander (n = 15,840)
Other race (n = 18,895)
Current asthma prevalence
% (95% CI)
Prevalence ratio
aPR (95%CI)b
Current asthma prevalence
% (95% CI)
Prevalence ratio
aPR (95%CI)
Current asthma prevalence
% (95% CI)
Prevalence ratio
aPR (95% CI)
Sex pc < .0001 p = .5748 p < .0001
 Male 9.5 (7.8–11.5) 1.0 (reference) 4.7 (3.8–5.7) 1.0 (reference) 10.7 (9.4–12.2) 1.0 (reference)
 Female 17.4 (15.4–19.6) 1.7 (1.4–2.2) 5.0 (4.2–5.9) 1.1 (0.8–1.4) 16.5 (15.2–17.8) 1.4 (1.2–1.7)
Age, year range p = .0538 p = .0009 p = .0087
 18–34 11.6 (9.0–14.8) 1.0 (reference) 4.5 (3.4–6.0) 1.0 (reference) 13.7 (11.7–15.9) 1.0 (reference)
 35–44 12.9 (9.6–17.2) 1.1 (0.7–1.6) 3.4 (2.6–4.4) 0.8 (0.5–1.2) 13.5 (11.5–16.0) 1.0 (0.8–1.2)
 45–54 14.5 (12.0–17.4) 1.2 (0.9–1.6) 6.1 (4.8–7.8) 1.4 (1.0–2.0) 15.0 (13.1–17.1) 1.0 (0.8–1.3)
 55–64 16.5 (13.6–19.9) 1.3 (1.0–1.8) 6.6 (5.0–8.6) 1.4 (1.0–2.1) 13.3 (11.7–15.0) 0.9 (0.7–1.1)
 65+ 11.1 (8.9–13.7) 0.9 (0.6–1.2) 6.1 (4.7–7.8) 1.3 (0.9–1.8) 10.8 (9.5–12.3) 0.6 (0.5–0.8)
Education level p = .0829 p = .1567 p = .0003
 High school or less 14.4 (12.4–16.7) 1.1 (0.8–1.5) 5.0 (3.7–6.7) 1.1 (0.8–1.6) 14.4 (12.8–16.1) 1.0 (0.9–1.2)
 Some college 12.4 (10.0–15.3) 1.0 (0.7–1.4) 6.2 (4.5–8.5) 1.4 (1.0–2.0) 15.1 (13.3–17.2) 1.2 (0.9–1.4)
 College 4+ years 10.6 (8.3–13.5) 1.0 (reference) 4.3 (3.6–5.0) 1.0 (reference) 10.7 (9.2–12.3) 1.0 (reference)
Household income p = .0001 p = .0998 p < .0001
 <$15,000 17.9 (15.0–21.3) 2.0 (1.2–3.2) 8.0 (5.4–11.7) 1.9 (1.2–2.9) 23.8 (20.4–27.5) 2.5 (1.8–3.3)
 $15,000–$24,999 15.5 (12.6–19.0) 1.7 (1.0–2.9) 4.2 (2.8–6.3) 0.9 (0.6–1.5) 16.5 (14.1–19.4) 1.7 (1.3–2.4)
 $25,000–$49,999 11.9 (9.3–15.1) 1.5 (0.9–2.4) 3.8 (2.8–5.3) 0.8 (0.5–1.2) 12.8 (11.0–14.8) 1.3 (1.0–1.8)
 $50,000–$74,999 9.8 (6.8–14.0) 1.4 (0.8–2.3) 6.4 (4.5–8.9) 1.3 (0.9–2.0) 9.9 (7.8–12.5) 1.1 (0.8–1.6)
 ≥$75,000 7.8 (5.3–11.3) 1.0 (reference) 4.6 (3.7–5.7) 1.0 (reference) 9.0 (7.2–11.2) 1.0 (reference)
Body mass index p = .0566 p = .0002 p < .0001
 Obese 15.2 (12.9–17.7) 1.2 (1.0–1.5) 9.2 (7.1–11.9) 2.1 (1.5–2.8) 18.8 (16.9–20.8) 1.5 (1.3–1.8)
 Non-obese 12.2 (10.5–14.2) 1.0 (reference) 4.4 (3.7–5.1) 1.0 (reference) 11.1 (10.0–12.4) 1.0 (reference)
Smoking status p = 0.0135 p = .4956 p = .0111
 Current smoker 15.9 (13.2–19.0) 1.3 (1.01–1.8) 5.1 (3.2–7.9) 1.1 (0.7–1.7) 16.3 (14.2–18.6) 1.2 (1.0–1.4)
 Former smoker 13.1 (11.0–15.6) 1.3 (1.0–1.7) 5.9 (4.3–7.9) 1.1 (0.8–1.6) 12.5 (10.8–14.6) 1.1 (0.9–1.3)
 Non-smoker 10.6 (8.7–12.8) 1.0 (reference) 4.7 (4.0–5.5) 1.0 (reference) 12.5 (11.2–13.8) 1.0 (reference)
Physical activity p < .0001 p = .8934 p < .0001
 Active 10.9 (9.5–12.4) 0.7 (0.6–0.9) 4.8 (4.2–5.6) 1.2 (0.9–1.6) 11.9 (10.8–13.1) 0.8 (0.7–0.9)
 Inactive 18.5 (15.5–22.0) 1.0 (reference) 4.7 (3.6–6.2) 1.0 (reference) 18.2 (16.3–20.4) 1.0 (reference)
Health insurance p = .6644 p = .0003 p = .9301
 Yes 12.9 (11.5–14.4) 1.0 (0.8–1.4) 5.2 (4.5–6.0) 2.4 (1.4–4.1) 13.5 (12.5–14.6) 1.2 (1.0–1.6)
 No 13.7 (10.5–17.8) 1.0 (reference) 2.4 (1.4–4.1) 1.0 (reference) 13.4 (11.0–16.1) 1.0 (reference)

Notes:

a

American Indian/ Alaska Native.

b

Prevalence rate ratio (95% confidence interval) adjusted for age, sex, education, income, obesity, smoking, physical activity, and health insurance.

c

P-values for the χ2 test for independence to determine whether there is a significant relationship between two categorical variables.