Table 3. Estimated Weighted Prevalence for Specific Classifications of Fetal Alcohol Spectrum Disorders for 8 Samples at 4 Community Sites in the United States (Prevalence per 1000 Children)^a.

Site and Sample	Sampling Method	Year Initiated	No. of Children Classifiedb	Fetal Alcohol Syndrome		Partial Fetal Alcohol Syndrome		Alcohol-Related Neurodevelopmental Disorder		Total Fetal Alcohol Spectrum Disorders
				No. of Cases	Prevalence (95% CI)	No. of Cases	Prevalence (95% CI)	No. of Cases	Prevalence (95% CI)	No. of Cases	Prevalence (95% CI)
Midwestern City
1	1	2010	512	11	7.8 (4.2-13.5)	21	31.0 (14.6-57.6)	4	9.7 (2.1-30.4)	36	48.5 (27.8-77.7)
2	2	2012	236	0	0.0 (0.0-12.7)	2	8.4 (0.0-20.2)	6	25.4 (5.3-45.5)	8	33.9 (10.8-57.0)
Rocky Mountain City
3	1	2012	265	3	6.6 (1.9-17.9)	10	22.2 (11.6-38.5)	5	37.7 (13.9-81.2)	18	66.5 (36.5-108.6)
4	2	2013	203	1	4.9 (0.0-14.6)	12	59.1 (26.7-91.6)	7	34.5 (9.4-59.6)	20	98.5 (57.5-139.5)
Southeastern Countyc
5	1	2013	382	3	2.6 (0.7-7.2)	10	13.8 (4.9-32.0)	15	50.4 (25.3-88.3)	28	66.8 (38.3-105.8)
6	1	2014	444	5	3.8 (1.5-8.5)	6	8.9 (2.3-25.4)	10	18.4 (7.3-38.8)	21	31.1 (16.1-54.0)
Pacific Southwestern City
7	3	2012	424	1	2.0 (0.2-10.9)	19	38.8 (26.1-55.1)	22	49.2 (28.8-77.5)	42	90.0 (65.9-118.6)
8	3	2013	496	3	4.9 (1.3-13.7)	24	41.4 (28.4-58.1)	22	38.2 (21.2-62.8)	49	84.4 (61.2-112.3)

^aSee supplemental materials for detailed methods and example calculations.

^bNumber of children classified is the number of children reviewed in case conferences. Those with sufficient information from the full evaluation to classify as fetal alcohol spectrum disorders are included in the denominators for the weighted prevalence estimates.

^cConsists of 1 county that included 3 midsized to small cities and rural areas.