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. 2019 Apr 12;68(2):1–19. doi: 10.15585/mmwr.ss6802a1

TABLE 7. Number and prevalence* of children aged 4 years meeting DSM-IV-TR or DSM-5 autism spectrum disorder case definition — Autism and Developmental Disabilities Monitoring Network, seven sites, United States, 2014.

Site and record source DSM-IV-TR
DSM-5
Prevalence ratio (95% CI),
DSM-IV-TR to DSM-5
No. Prevalence (95% CI) No. Prevalence (95% CI)
Health care and education
Arizona
130
13.5 (11.3–16.0)
102
10.6 (8.6–12.9)
1.3 (1.0–1.7)
Colorado
113
13.4 (11.0–16.1)
93
11.0 (8.9–13.5)
1.2 (0.9–1.6)
New Jersey§
514
28.4 (26.0–30.9)
406
22.4 (20.3–24.7)
1.3 (1.1–1.4)
North Carolina§
231
15.5 (13.6–17.6)
204
13.7 (11.9–15.7)
1.1 (0.9–1.4)
Health care only
Missouri
112
9.6 (7.9–11.6)
105
9.0 (7.4–10.9)
1.1 (0.8–1.4)
Wisconsin§
108
13.2 (10.8–15.9)
93
11.3 (9.1–13.9)
1.2 (0.9–1.5)
Total 1,208 17.0 (16.1–18.0) 1,003 14.1 (13.3–15.1) 1.2 (1.1–1.3)

Abbreviations: CI = confidence interval; DSM-IV-TR = Diagnostic and Statistical Manual of Mental Disorders, 4th Edition, Text Revision; DSM-5 = Diagnostic and Statistical Manual of Mental Disorder, Fifth Edition.

* Prevalence per 1,000 children aged 4 years living in the surveillance areas according to the vintage 2016 postcensal bridged-race population estimates for 2014 (http://www.cdc.gov/nchs).

Results for PRs considered statistically significant when the CI excludes the null value (PR = 1.0).

§ Site also reviewed records from early intervention sources.