TABLE 3. Prevalence* of autism spectrum disorder among children aged 8 years, by race and ethnicity† — Autism and Developmental Disabilities Monitoring Network, 11 sites, United States, 2020.
| Site | Prevalence (95% CI) |
Prevalence Ratio (95% CI) |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| A/PI | Black |
Hispanic | White | Two or more races | Black to White | Hispanic to White | A/PI to White | Two or more races to White | |
| Arizona |
—§ |
25.9 (17.3–38.6) |
26.6 (22.7–31.2) |
29.7 (25.5–34.7) |
20.9 (12.5–34.8) |
0.9 (0.6–1.3) |
0.9 (0.7–1.1) |
— |
0.7 (0.4–1.2) |
| Arkansas |
58.8 (34.0–100.0) |
23.9 (19.4–29.3) |
31.0 (23.2–41.4) |
22.5 (19.7–25.7) |
— |
1.1 (0.8–1.4) |
1.4 (1.0–1.9)¶ |
2.6 (1.5–4.6)¶ |
— |
| California |
56.5 (46.9–67.9) |
44.4 (33.8–58.1) |
45.3 (40.9–50.1) |
38.3 (32.6–45.1) |
39.7 (30.4–51.7) |
1.2 (0.8–1.6) |
1.2 (1.0–1.4) |
1.5 (1.2–1.9)¶ |
1.0 (0.8–1.4) |
| Georgia |
25.3 (18.7–34.1) |
28.6 (25.7–31.8) |
25.2 (19.8–32.0) |
19.0 (15.7–22.9) |
17.6 (10.7–28.9) |
1.5 (1.2–1.9)¶ |
1.3 (1.0–1.8) |
1.3 (0.9–1.9) |
0.9 (0.5–1.6) |
| Maryland |
36.5 (29.2–45.6) |
33.6 (29.0–39.0) |
17.2 (12.2–24.0) |
16.8 (14.5–19.4) |
19.1 (13.0–28.1) |
2.0 (1.6–2.5)¶ |
1.0 (0.7–1.5) |
2.2 (1.7–2.8)¶ |
1.1 (0.8–1.7) |
| Minnesota |
24.3 (19.1–30.9) |
27.9 (23.1–33.7) |
40.4 (32.2–50.7) |
30.0 (26.2–34.4) |
31.0 (22.1–43.2) |
0.9 (0.7–1.2) |
1.3 (1.0–1.8)¶ |
0.8 (0.6–1.1) |
1.0 (0.7–1.5) |
| Missouri |
34.3 (24.0–48.9) |
28.1 (24.2–32.7) |
16.8 (10.9–25.8) |
23.4 (21.1–25.9) |
10.2 (5.8–7.7) |
1.2 (1.0–1.4)¶ |
0.7 (0.5–1.1) |
1.5 (1.0–2.1)¶ |
0.4 (0.2–0.8)¶ |
| New Jersey |
27.5 (19.6–38.3) |
32.9 (28.6–37.8) |
32.7 (28.6–37.3) |
19.7 (16.2–23.9) |
— |
1.7 (1.3–2.1)¶ |
1.7 (1.3–2.1)¶ |
1.4 (0.9–2.1) |
— |
| Tennessee |
38.3 (27.4–53.3) |
32.9 (28.0–38.6) |
26.3 (21.5–32.2) |
25.2 (22.9–27.8) |
25.7 (18.5–35.6) |
1.3 (1.1–1.6)¶ |
1.0 (0.8–1.3) |
1.5 (1.1–2.2)¶ |
1.0 (0.7–1.4) |
| Utah |
27.9 (19.5–39.8) |
— |
23.6 (19.8–28.1) |
24.8 (22.5–27.2) |
18.2 (11.7–28.3) |
— |
1.0 (0.8–1.2) |
1.1 (0.8–1.6) |
0.7 (0.5–1.2) |
| Wisconsin |
29.2 (22.0–38.7) |
23.8 (19.9–28.5) |
35.6 (30.8–41.1) |
25.9 (23.5–28.5) |
30.0 (22.4–40.2) |
0.9 (0.8–1.1) |
1.4 (1.2–1.6)¶ |
1.1 (0.8–1.5) |
1.2 (0.9–1.6) |
| Total | 33.4 (30.5–36.4) | 29.3 (27.9–30.9) | 31.6 (30.0–33.3) | 24.3 (23.4–25.2) | 22.9 (20.3–25.8) | 1.2 (1.1–1.3) ¶ | 1.3 (1.2–1.4) ¶ | 1.4 (1.2–1.5) ¶ | 0.9 (0.8–1.1) |
Abbreviation: A/PI = Asian or Pacific Islander.
* Per 1,000 children aged 8 years. Overall American Indian/Alaska Native autism spectrum disorder prevalence per 1,000 was 26.5 (95% CI = 18.5–37.8). Arizona was the only Autism and Developmental Disabilities Monitoring Network site meeting the threshold for statistical precision for American Indian/Alaska Native autism spectrum disorder prevalence; the site-specific prevalence per 1,000 was 26.8 (95% CI = 15.0–47.3). None of ratios with AI/AN children that met the threshold for suppression were statistically significant.
† Persons of Hispanic origin might be of any race but are categorized as Hispanic; all racial groups are non-Hispanic.
§ Dash indicates estimate was suppressed because SE for prevalence was ≥30% of estimate, or prevalence ratio was based on an estimate that was suppressed.
¶ 95% CI does not include 1.0.