2020 Adult Asthma Data: Prevalence Tables and Maps

Table L2.1
Adulta Lifetimeb Asthma Prevalence
by Sex at Birth and State or Territory: BRFSS 2020
State Male Sample Sizec Male Prevalence (Percent) Male Standard Error Male 95% CId (Percent) ||
|| ||
Female Sample Sizec Female Prevalence (Percent) Female Standard Error (Percent) Female 95% CId (Percent)
U.S. Totalf 180,274 11.5 0.17 (11.1–11.8) || 213,200 16.1 0.19 (15.7–16.5)
AL 2,170 13.2 0.97 (11.3–15.1) || 3,163 16.0 0.85 (14.3–17.7)
AK 1,810 10.5 1.30 (7.9–13.0) || 1,845 17.8 1.44 (14.9–20.6)
AZ 4,748 12.1 0.66 (10.8–13.4) || 5,505 16.8 0.74 (15.4–18.2)
AR 2,181 9.8 0.83 (8.2–11.5) || 3,046 15.1 1.04 (13.0–17.1)
CA 2,330 13.0 0.94 (11.2–14.9) || 2,451 17.2 1.08 (15.1–19.3)
CO 4,998 11.8 0.54 (10.7–12.9) || 5,161 16.3 0.62 (15.1–17.5)
CT 4,075 13.1 0.86 (11.4–14.8) || 4,871 17.1 0.84 (15.4–18.7)
DE 1,785 13.4 1.27 (11.0–15.9) || 2,232 15.4 1.07 (13.3–17.5)
DC 1,547 14.5 1.22 (12.1–16.9) || 1,872 17.2 1.26 (14.7–19.7)
FL 5,348 10.0 0.79 (8.4–11.5) || 6,420 13.4 0.82 (11.8–15.0)
GA 3,964 11.7 0.91 (9.9–13.5) || 5,090 14.7 0.81 (13.1–16.3)
HI 3,560 12.3 0.78 (10.8–13.8) || 4,185 16.6 0.78 (15.1–18.2)
ID 2,889 10.2 0.85 (8.5–11.8) || 3,069 15.7 0.94 (13.9–17.6)
IL 1,705 10.0 0.90 (8.3–11.8) || 1,972 14.3 1.06 (12.3–16.4)
IN 3,824 11.5 0.63 (10.2–12.7) || 4,626 16.3 0.68 (15.0–17.7)
IA 4,608 9.4 0.53 (8.3–10.4) || 5,007 14.4 0.61 (13.2–15.6)
KS 4,876 11.9 0.62 (10.6–13.1) || 5,607 16.4 0.68 (15.1–17.8)
KY 1,839 13.4 1.02 (11.4–15.4) || 2,081 18.7 1.12 (16.5–20.9)
LA 2,155 12.9 1.06 (10.9–15.0) || 2,583 15.2 0.92 (13.4–17.0)
ME 4,498 13.0 0.81 (11.4–14.6) || 6,463 16.5 0.77 (15.0–18.0)
MD 6,411 11.2 0.60 (10.0–12.4) || 7,835 14.8 0.57 (13.7–16.0)
MA 3,263 12.2 0.76 (10.7–13.7) || 3,882 18.6 0.88 (16.9–20.4)
MI 3,201 11.9 0.79 (10.4–13.5) || 4,041 18.8 0.82 (17.2–20.4)
MN 7,613 9.5 0.42 (8.7–10.4) || 8,182 14.4 0.48 (13.5–15.3)
MS 2,566 12.4 0.84 (10.8–14.1) || 3,900 15.9 0.82 (14.3–17.5)
MO 4,074 10.6 0.66 (9.3–11.9) || 5,097 16.1 0.72 (14.7–17.5)
MT 3,128 12.0 0.71 (10.6–13.3) || 3,172 18.3 0.90 (16.6–20.1)
NE 6,790 8.7 0.50 (7.7–9.7) || 7,977 12.8 0.60 (11.6–13.9)
NV 1,207 11.4 1.20 (9.0–13.7) || 1,267 15.3 1.36 (12.6–17.9)
NH 2,830 12.5 0.88 (10.8–14.3) || 3,586 18.1 0.90 (16.3–19.9)
NJ 5,454 10.8 0.57 (9.6–11.9) || 5,882 14.3 0.59 (13.1–15.4)
NM 3,024 12.1 0.94 (10.2–13.9) || 3,968 16.2 1.00 (14.3–18.2)
NY 6,685 12.0 0.58 (10.9–13.1) || 8,028 15.2 0.56 (14.1–16.3)
NC 2,632 10.1 0.70 (8.7–11.4) || 3,191 14.4 0.78 (12.9–15.9)
ND 2,155 9.1 0.88 (7.4–10.8) || 2,298 14.8 1.15 (12.5–17.1)
OH 6,684 11.5 0.59 (10.3–12.7) || 7,937 17.2 0.64 (15.9–18.5)
OK 2,169 13.3 0.91 (11.5–15.1) || 2,854 17.5 0.91 (15.7–19.3)
OR 2,595 12.5 0.76 (11.0–13.9) || 2,809 18.7 0.87 (17.0–20.4)
PA 2,746 12.4 0.89 (10.7–14.2) || 2,780 17.9 0.98 (16.0–19.8)
RI 2,297 12.4 1.05 (10.3–14.5) || 3,067 19.0 1.08 (16.9–21.1)
SC 1,785 10.9 0.94 (9.0–12.7) || 2,217 16.8 1.04 (14.8–18.9)
SD 3,068 8.6 1.03 (6.6–10.6) || 3,841 13.5 1.26 (11.0–16.0)
TN 2,103 12.4 0.97 (10.5–14.3) || 2,538 18.8 1.10 (16.6–20.9)
TX 5,187 8.9 0.72 (7.5–10.3) || 5,807 15.5 0.95 (13.6–17.4)
UT 5,327 14.9 0.63 (13.6–16.1) || 5,548 17.7 0.67 (16.4–19.0)
VT 2,890 11.3 0.86 (9.6–12.9) || 3,625 18.7 1.04 (16.7–20.8)
VA 4,261 10.5 0.65 (9.2–11.7) || 5,249 16.5 0.73 (15.0–17.9)
WA 6,066 13.0 0.57 (11.9–14.2) || 6,792 16.9 0.59 (15.8–18.1)
WV 2,572 15.3 0.95 (13.5–17.2) || 3,292 18.5 0.86 (16.8–20.2)
WI 2,431 11.9 0.99 (10.0–13.9) || 2,654 15.7 1.05 (13.6–17.7)
WY 2,150 12.5 1.03 (10.5–14.6) || 2,635 17.6 1.21 (15.2–19.9)
Territories
GU 1,015 7.2 1.30 (4.6–9.7) || 1,166 13.5 1.97 (9.6–17.3)
PR 1,975 14.1 1.32 (11.5–16.7) || 2,961 18.6 1.10 (16.4–20.8)

Notes: For additional information on methods and variable description, refer to ‘Technical Information’, available at: https://www.cdc.gov/asthma/brfss/2020/brfsstechinfo.html
aAged 18+ years
bLifetime question: Has a doctor, nurse, or other health professional EVER told you that you had asthma?
cUnweighted number of respondents who answered the lifetime asthma question
dCI denotes confidence interval
eWeighted number of the respondents who answered the lifetime asthma question
fU.S. Total includes 50 states plus the District of Columbia and excludes the territories
‘.–./blank’:Suppressed if the normal approximation to the binomial distribution does not apply due to small sample size or relative standard error (RSE)>30%

Asthma and Community Health Branch, National Center for Environmental Health
Centers for Disease Control and Prevention

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