2021 National Health Interview Survey (NHIS) Data

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Standard Errors1 for Lifetime Asthma2 Population Estimates—Rounded by Age, United States: National Health Interview Survey, 2021

Table 1-2
Standard Errors1 for Lifetime Asthma2 Population Estimates—Rounded
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: 973,700 297,200 854,000 72,300 245,300 227,500 277,100 350,200 509,900 242,200
   Male 541,000 231,700 473,400 52,100 200,500 171,500 177,200 230,900 291,800 139,600
   Female 651,400 171,900 600,500 49,400 144,900 153,300 198,500 234,700 375,800 184,700
White Non–Hispanic: 760,200 202,400 673,200 36,000 174,200 172,500 198,300 258,300 408,300 206,000
   Male 427,500 160,100 379,000 31,500 134,400 129,700 137,400 168,800 236,500 113,200
   Female 508,400 118,900 471,600 17,300 104,700 121,700 135,400 185,700 296,700 162,200
Black Non–Hispanic: 344,700 145,200 282,300 41,300 119,700 91,300 94,400 152,100 160,100 73,000
   Male 212,100 108,400 171,600 29,600 95,900 71,800 64,100 110,300 88,900 40,700
   Female 234,600 96,700 201,300 28,700 79,400 57,300 69,700 93,900 132,600 56,600
Other Non–Hispanic: 300,900 96,900 271,000 34,000 77,700 55,100 117,400 74,900 144,200 73,200
    Male 164,800 75,500 133,900 15,000 68,400 41,800 67,100 49,600 65,500 58,800
    Female 237,000 57,400 228,100 28,700 39,600 36,600 96,500 53,300 126,500 45,100
Hispanic: 373,800 152,800 302,300 34,000 126,700 92,500 95,700 155,900 189,600 85,400
    Male 239,100 120,800 192,300 24,800 105,500 69,900 61,700 114,000 110,700 48,900
    Female 224,400 74,200 200,100 23,300 60,100 54,800 74,400 98,900 128,500 58,800
Mexican/Mexican–American:3 254,500 120,600 188,300 10,100 101,400 65,000 64,000 93,400 116,100 57,400
    Male 165,800 98,900 121,600 9,100 87,600 47,000 44,400 61,500 76,700 34,300
    Female 147,100 55,600 128,800 4,400 50,500 41,200 44,200 70,600 79,800 37,500
 Other Hispanic:3 259,900 91,200 223,100 31,800 72,700 64,700 74,000 123,400 129,000 60,800
    Male 169,400 72,400 147,000 22,100 62,400 52,000 44,300 94,000 73,600 34,000
    Female 161,100 48,500 144,700 22,800 31,100 35,900 60,900 70,800 90,000 44,300
Region:
    Northeast 413,000 118,100 371,400 25,600 83,400 82,600 141,600 139,800 209,400 107,000
    Midwest 418,400 124,800 367,700 39,700 109,200 107,900 108,900 150,900 221,900 104,700
    South 584,400 191,000 516,800 49,700 164,700 153,800 168,700 218,300 317,200 143,300
    West 510,400 149,300 434,900 22,800 119,000 98,100 128,100 180,800 257,500 125,300
Ratio of Family Income to Poverty Threshold:4
    0–0.99 315,200 152,300 260,200 34,100 132,600 94,700 108,600 129,700 149,000 79,500
    1.00–2.49 450,600 160,200 400,000 49,200 135,400 134,200 155,100 167,500 243,700 129,500
    2.50–4.49 420,500 143,300 377,700 31,800 121,200 128,900 141,400 172,100 226,300 123,100
    4.50 and above 493,700 138,800 443,400 30,700 107,700 114,400 118,100 197,900 288,700 136,000

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

1Standard error 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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