2021 National Health Interview Survey (NHIS) Data

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Table 2-1 Percentage of Persons With Lifetime Asthma1 by Age, United States: National Health Interview Survey, 2021

Table 2-1
Percentage of Persons With Lifetime Asthma1
by Age, United States: National Health Interview Survey, 2021
Characteristic All Ages
Total		 Children
Age <18		 Adults
Age 18+		 0–4 5–14 15–19 20–24 25–34 35–64 65+
Total: 12.9 10.2 13.7 2.6 11.9 16.7 16.8 16.6 13.0 11.2
   Male 12.1 12.2 12.1 2.6 14.6 19.6 16.3 16.0 10.8 8.6
   Female 13.6 8.1 15.1 2.5 9.1 13.7 17.4 17.1 15.1 13.3
White Non–Hispanic: 13.1 9.1 14.0 1.5 10.2 17.3 16.7 17.2 14.1 11.0
   Male 12.1 11.3 12.3 2.1* 12.8 20.1 16.4 15.5 12.0 8.4
   Female 14.1 6.8 15.8 0.8* 7.7 14.4 17.1 19.1 16.1 13.1
Black Non–Hispanic: 15.9 16.8 15.7 5.6* 20.4 22.3 19.4 20.1 14.0 11.8
   Male 14.8 16.7 14.1 4.9* 20.4 27.0 21.0 22.8 9.8 7.9
   Female 16.9 16.9 16.9 6.3* 20.4 17.8 18.0 17.9 17.6 14.3
Other Non–Hispanic: 12.0 10.8 12.5 4.7* 12.5 15.7 22.5 12.2 10.4 12.6
    Male 11.9 12.3 11.7 ** 15.2 18.7 20.8 11.5 8.9 12.1
    Female 12.2 9.1 13.2 7.1* 9.3 12.1* 24.5* 13.1 11.6 13.0
Hispanic: 10.7 8.9 11.4 2.2* 11.1 13.0 12.9 14.5 9.5 11.3
    Male 10.6 11.5 10.2 2.6* 14.8 15.2 10.9 15.7 7.6 8.0
    Female 10.7 6.2 12.5 ** 6.9 10.9 14.7 13.5 11.3 14.1
Mexican/Mexican–American:2 8.4 8.5 8.3 ** 10.8 12.7 8.4 9.7 7.2 9.1
    Male 8.5 11.2 7.2 ** 14.2 14.9 7.7* 10.0 5.8 6.2*
    Female 8.3 5.6 9.4 ** 7.0 10.8 9.0* 9.3 8.7 11.9
 Other Hispanic:2 14.0 9.5 15.8 4.5* 11.4 13.7 21.1 22.2 12.5 13.3
    Male 14.1 11.8 15.1 4.8* 15.6 16.4* 18.0* 25.3 10.5 9.7*
    Female 13.9 7.1 16.3 ** 6.9 11.2* 23.4 19.5 14.1 16.0
Region:
    Northeast 12.0 8.2 13.0 2.1* 9.1 12.8 18.9 15.2 12.6 10.5
    Midwest 13.5 11.1 14.2 3.7 12.0 20.1 16.7 17.3 13.6 10.9
    South 12.7 10.8 13.3 2.9 13.5 17.3 17.6 16.8 12.2 10.3
    West 13.2 9.6 14.3 1.3* 11.2 15.6 14.4 16.4 13.8 13.6
Ratio of Family Income to Poverty Threshold:3
    0–0.99 16.1 13.1 17.5 2.5* 16.4 18.6 22.3 21.6 16.0 14.5
    1.00–2.49 13.2 10.0 14.3 3.5 11.7 16.0 17.3 16.2 14.1 11.6
    2.50–4.49 12.5 9.8 13.2 2.3* 11.2 16.7 16.6 16.5 12.5 10.1
    4.50 and above 11.9 9.0 12.5 1.8* 10.2 16.5 13.3 15.3 12.0 10.8

Source: National Health Interview Survey, National Center for Health Statistics, CDC
Compiled 3/27/2023

1Lifetime asthma determined by persons who answered “yes” to the question: “Have you EVER been told by a doctor or other health professional that you had asthma?”
All relative standard errors are <30% unless otherwise indicated.
*Relative standard error of the estimate is 30%–50%; the estimate is unreliable.
**Suppressed if relative standard error of the estimate exceeds 50% or if standard error is missing or 0.
2As a subset of Hispanic.
3Missing responses imputed. See NHIS “Imputed Income Technical Document”: https://ftp.cdc.gov/pub/Health_Statistics/NCHS/Dataset_Documentation/NHIS/2020/NHIS2020-imputation-techdoc-508.pdf.
Notes: Sex determined by “male” or “female” response to question: “Are you male or female?” Additional information on methods and variable description available at: https://www.cdc.gov/asthma/nhis/default.htm.

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

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