2019 Adult Asthma Data: Prevalence Tables and Maps

Table C1
Adult* Self-Reported Current Asthma Prevalence and Number
by State or Territory: BRFSS 2019
State Sample
Size§
Prevalence
(percent)
Standard
Error
95% CI
(percent)
||
||
Weighted
Number
95% CI
(Weighted Number)
U.S. Total** 406,571 9.0 0.09 (8.8–9.2) || 22,249,090 (21,820,314–22,677,866)
AL 7,008 9.5 0.49 (8.6–10.5) || 360,965 (323,732–398,199)
AK 2,946 9.9 0.91 (8.1–11.7) || 54,239 (44,176–64,302)
AZ 8,863 9.7 0.52 (8.7–10.7) || 544,394 (486,408–602,380)
AR 5,311 9.3 0.58 (8.2–10.5) || 215,095 (188,146–242,044)
CA 11,548 7.8 0.32 (7.2–8.5) || 2,405,797 (2,210,798–2,600,797)
CO 9,227 9.7 0.38 (9.0–10.5) || 434,603 (400,620–468,585)
CT 9,097 10.5 0.46 (9.6–11.4) || 297,971 (271,375–324,566)
DE 3,865 9.8 0.71 (8.4–11.2) || 75,119 (64,172–86,066)
DC 2,591 11.4 0.84 (9.7–13.0) || 65,253 (55,522–74,984)
FL 16,849 7.4 0.41 (6.6–8.3) || 1,292,568 (1,150,627–1,434,510)
GA 7,299 7.7 0.49 (6.7–8.6) || 620,794 (542,234–699,355)
HI 7,634 9.6 0.47 (8.7–10.5) || 106,413 (96,103–116,723)
ID 5,416 10.0 0.62 (8.7–11.2) || 131,709 (115,308–148,111)
IL 5,487 8.2 0.44 (7.4–9.1) || 808,461 (722,332–894,591)
IN 8,801 9.8 0.40 (9.0–10.6) || 499,841 (458,577–541,105)
IA 9,734 8.0 0.34 (7.4–8.7) || 194,614 (178,072–211,156)
KS 11,275 9.9 0.36 (9.2–10.6) || 217,474 (201,689–233,260)
KY 7,891 9.5 0.52 (8.5–10.5) || 326,678 (290,866–362,489)
LA 4,688 7.9 0.46 (7.0–8.8) || 280,621 (248,264–312,978)
ME 11,270 11.8 0.56 (10.7–12.9) || 127,896 (115,572–140,220)
MD 17,289 9.0 0.34 (8.3–9.7) || 424,051 (392,033–456,070)
MA 7,658 10.3 0.45 (9.4–11.2) || 570,379 (520,308–620,451)
MI 10,411 11.1 0.43 (10.3–12.0) || 867,732 (799,501–935,962)
MN 15,448 8.3 0.27 (7.8–8.8) || 358,668 (335,544–381,791)
MS 5,096 9.9 0.59 (8.8–11.1) || 225,468 (198,719–252,217)
MO 7,241 10.1 0.50 (9.1–11.1) || 479,037 (431,656–526,417)
MT 6,447 10.0 0.46 (9.1–10.9) || 83,280 (75,625–90,934)
NE 15,779 8.0 0.33 (7.4–8.6) || 116,768 (107,318–126,219)
NV 2,764 9.4 0.75 (7.9–10.9) || 224,825 (189,210–260,440)
NH 5,816 10.8 0.57 (9.7–11.9) || 119,305 (106,897–131,714)
NM 5,920 8.4 0.49 (7.5–9.4) || 134,715 (119,288–150,143)
NY 14,109 9.3 0.35 (8.6–9.9) || 1,419,951 (1,315,041–1,524,862)
NC 4,269 8.3 0.48 (7.4–9.3) || 681,689 (604,194–759,184)
ND 5,495 8.1 0.56 (7.0–9.2) || 47,369 (40,885–53,852)
OH 13,429 11.1 0.46 (10.2–12.0) || 1,009,034 (925,926–1,092,141)
OK 6,257 10.2 0.48 (9.3–11.2) || 302,947 (274,743–331,150)
OR 6,034 11.1 0.50 (10.1–12.1) || 369,735 (336,130–403,339)
PA 6,570 10.9 0.51 (9.9–11.9) || 1,104,033 (1,000,670–1,207,396)
RI 6,066 11.2 0.61 (10.0–12.4) || 94,817 (84,518–105,116)
SC 7,074 9.4 0.50 (8.4–10.4) || 376,358 (336,081–416,635)
SD 6,577 8.5 0.76 (7.0–10.0) || 56,510 (46,301–66,720)
TN 6,178 8.8 0.48 (7.9–9.7) || 463,655 (413,920–513,391)
TX 12,204 7.1 0.45 (6.2–8.0) || 1,532,311 (1,339,108–1,725,513)
UT 11,665 9.9 0.36 (9.2–10.6) || 223,768 (207,601–239,936)
VT 6,410 11.6 0.62 (10.4–12.9) || 59,140 (52,725–65,554)
VA 9,881 8.8 0.38 (8.0–9.5) || 586,339 (536,897–635,781)
WA 12,894 9.9 0.35 (9.2–10.6) || 590,642 (548,839–632,444)
WV 5,264 11.5 0.59 (10.4–12.7) || 164,016 (147,265–180,767)
WI 4,920 10.2 0.59 (9.0–11.3) || 460,075 (406,697–513,453)
WY 4,606 9.5 0.66 (8.3–10.8) || 41,968 (36,180–47,756)
Territories
GU 2,415 5.2 0.92 (3.4–7.0) || 5,556 (3,568–7,544)
PR 6,017 10.5 0.48 (9.6–11.5) || 287,511 (261,499–313,524)

Notes:
*Aged 18+ years
**U.S. Total includes 49 states plus the District of Columbia and excludes the three territories, New Jersey was excluded because of not meeting the minimum data collection requirements.
CI denotes confidence interval.
§Sample size is the number of respondents answered current asthma question
If values for the standard error and the 95% confidence interval are not provided, the normal approximation to the binomial distribution does not apply due to small sample size.
When the Sample Size is less than 50, estimates are not precise and should be interpreted with caution.

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

Page last reviewed: February 22, 2021