2021 National Health Interview Survey (NHIS) Data

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Standard Errors1 for Percentage of Persons With Lifetime Asthma2
by Age, United States: National Health Interview Survey, 2021

Table 2-2
Standard Errors1 for Percentage of Persons With Lifetime Asthma2
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: 0.23 0.38 0.26 0.38 0.55 1.00 1.23 0.69 0.34 0.38
   Male 0.28 0.58 0.33 0.54 0.87 1.46 1.54 0.95 0.43 0.51
   Female 0.32 0.46 0.38 0.53 0.69 1.44 1.77 0.96 0.51 0.53
White Non–Hispanic: 0.28 0.50 0.31 0.38 0.77 1.44 1.65 0.88 0.42 0.41
   Male 0.37 0.81 0.41 0.65 1.20 2.01 2.12 1.19 0.54 0.54
   Female 0.40 0.62 0.45 0.37 0.93 2.16 2.41 1.33 0.65 0.61
Black Non–Hispanic: 0.70 1.44 0.79 1.67 2.21 3.12 3.19 2.28 0.96 1.26
   Male 1.04 2.04 1.18 2.34 3.22 4.76 4.65 3.50 1.28 1.80
   Female 0.94 2.05 1.04 2.42 3.14 4.08 4.33 2.70 1.42 1.61
Other Non–Hispanic: 0.77 1.13 0.97 1.56 1.60 2.84 4.83 1.64 1.09 1.89
    Male 1.00 1.66 1.16 1.39 2.50 3.85 5.53 2.09 1.32 3.16
    Female 1.27 1.47 1.61 2.61 1.85 4.01 8.00 2.38 1.75 2.36
Hispanic: 0.47 0.73 0.59 0.67 1.05 1.66 1.88 1.48 0.78 1.49
    Male 0.66 1.13 0.81 0.94 1.70 2.59 2.69 2.27 0.95 1.92
    Female 0.63 0.78 0.81 0.95 1.11 1.97 2.68 1.86 1.06 1.95
Mexican/Mexican–American:3 0.55 0.96 0.62 0.34 1.37 1.90 2.06 1.52 0.83 1.92
    Male 0.75 1.50 0.85 0.58 2.24 3.01 3.00 2.10 1.10 2.38
    Female 0.73 0.99 0.93 0.30 1.55 2.40 2.76 2.28 1.24 2.69
Other Hispanic:3 0.87 1.17 1.10 1.58 1.69 3.09 3.93 2.90 1.31 2.29
    Male 1.28 1.84 1.66 2.11 2.74 4.91 5.80 4.64 1.69 3.27
    Female 1.10 1.32 1.39 2.32 1.56 3.42 5.54 3.17 1.70 2.89
Region:
    Northeast 0.60 1.00 0.66 0.87 1.31 2.21 3.49 1.78 0.84 0.91
    Midwest 0.52 0.79 0.58 1.01 1.23 2.42 2.31 1.48 0.73 0.78
    South 0.35 0.63 0.42 0.64 0.96 1.66 1.95 1.17 0.55 0.60
    West 0.44 0.71 0.51 0.50 0.99 1.87 2.39 1.27 0.68 0.83
Ratio of Family Income to Poverty Threshold:4
    0–0.99 0.73 1.21 0.92 0.99 1.77 3.12 3.29 2.39 1.17 1.61
    1.00–2.49 0.44 0.68 0.53 0.82 1.01 1.85 2.21 1.29 0.76 0.71
    2.50–4.49 0.43 0.73 0.51 0.70 1.09 2.14 2.26 1.21 0.66 0.72
    4.50 and above 0.34 0.64 0.38 0.60 0.89 1.86 2.13 1.12 0.48 0.65

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

1Standard Error which measures the variability in the estimates.
2Lifetime 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?”
3As a subset of Hispanic.
4Missing 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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