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. 2021 Nov 10;11:22008. doi: 10.1038/s41598-021-01233-2

Table 2.

Demographics by ADHD status, as counts of the NSCH sample and as estimated percentages of the United States 3–17-year-old population, from 2018–2019.

Sample count Ever diagnosed n = 5886 Currently diagnosed n = 5416 Sample count Currently diagnosed and medicated n = 3476
% C.I % C.I % C.I
All 51,939 9.5 9–10.2 8.7 8.3–9.2 51,916 5.4 5.0–5.7
Sex
Male 27,046 13 12.1–14.1 11.9 11.2–12.7 27,030 7.4 6.8–8.0
Female 24,893 5.8 5.3–6.5 5.3 4.9–5.8 24,886 3.2 2.9–3.6
Age
3–5 years old 9268 2 1.4–2.9 1.9 1.4–2.5 9267 0.8 0.5–1.4
6–11 years old 18,182 9.8 9–10.9 9.3 8.6–10.1 18,171 5.9 5.3–6.5
12–17 years old 24,489 12.8 11.8–14 11.4 10.6–12.2 24,478 7 6.4–7.7
Race/ethnicity
Hispanic 6143 7.3 6–9 6.5 5.5–7.7 6142 3.5 2.8–4.4
White, non-Hispanic 36,010 10.9 10.2–11.5 10.1 9.5–10.6 35,994 6.5 6.1–6.9
Black, non-Hispanic 3373 11.2 9.3–13.5 9.9 8.5–11.5 3368 6.3 5.2–7.5
Asian, non-Hispanic 2522 2.9 1.8–4.5 2.7 1.7–4.0 2521 1.3 0.6–2.5
Other, non-Hispanic 3891 9.6 7.8–11.7 8.8 7.4–10.3 3891 5.1 4.1–6.3
Family structure
Two parents, currently married 35,590 8.1 7.5–8.8 7.4 6.9–8.0 35,580 4.4 4.0–4.8
Two parents, not currently married 3293 10.6 8.2–14 9.2 7.5–11.2 3293 5.7 4.4–7.3
Single parent (mother or father) 9931 11.4 10–12.9 10.5 9.4–11.6 9922 6.6 5.8–7.6
Grandparent household 1679 17.6 13.8–23.6 15.9 13.1–19.2 1677 10.3 8.3–12.8
Other family type 509 20 14.3–28.3 18.6 13.7–24.8 508 14.4 10.1–20.2
Household income (*multiply imputed)
0–99% FPL 5905 10.9 8.9–12.8 10 8.9–11.3 5896 6.2 5.3–7.3
100–199% FPL 8490 9.8 8.4–11.4 9 7.9–10.1 8484 5.6 4.8–6.6
200–399% FPL 16,197 9.2 8.2–10.5 8.3 7.6–9.2 16,194 4.9 4.4–5.6
 ≥ 400% FPL 21,347 8.7 8–9.6 8 7.4–8.7 21,342 5 4.6–5.5
Highest education of adult in household
 < High school 1324 7.6 5.4–10.9 7 5.2–9.3 1324 4.5 3.2–6.5
High school or GED 6908 11.1 9.5–12.8 10.1 8.9–11.4 6900 6 5.1–7.0
Some college or technical school 12,422 11.3 10.1–12.7 10.4 9.5–11.4 12,415 6.2 5.5–6.9
College degree or higher 31,285 8.5 7.8–9.3 7.7 7.2–8.3 31,267 4.9 4.5–5.3
Current insurance status
Insured 49,354 9.7 9.2–10.4 8.9 8.5–9.4 49,331 5.6 5.2–5.9
Not insured 2400 6.6 4.7–9.1 5.6 4.2–7.3 2400 2.6 1.9–3.6
Primary household language
English 48,387 10.5 9.9–11.2 9.6 9.1–10.1 48,365 6 5.7–6.4
Other than English 3307 3.7 2.4–5.9 3.4 2.3–4.9 3306 1.2 0.6–2.6
Region
Midwest 11,948 10.1 9.2–11.1 9.3 8.4–10.3 11,946 5.9 5.3–6.5
Northeast 9105 8.7 7.7–9.7 7.8 6.9–8.7 9102 3.9 3.3–4.7
South 17,905 11.0 9.8–12.4 10.1 9–11.4 17,889 7.0 6.2–7.9
West 12,981 7.3 6.2–8.5 6.6 5.5–7.8 12,979 3.3 2.4–4.4

GED stands for General Educational Development. *Percent of Federal Poverty Level (FPL) was multiply imputed for analysis.