FMR1 CGG allele size and prevalence ascertained through newborn screening in the United States

Table 4 Summary of CGG distribution across ethnicity groups in the three categories

	N	Mean	SD
Combine
Normal^a	20,710	29	4
Gray	170	48	3
Pre	50	70	20
White/Caucasian
Normal^a	6,044	29	4
Gray	70	48	3
Pre	16	76	24
African-American/Black
Normal^a	4,506	29	4
Gray	31	48	2
Pre	11	71	21
Hispanic/Latino
Normal^a	5,126	29	4
Gray	38	48	3
Pre	6	75	26
Asian, including Indian
Normal^a	1,147	30	3
Gray	5	47	1
Pre	4	62	9
Other, including Native American
Normal^a	1,864	29	4
Gray	14	48	3
Pre	9	63	6
Unknown
Normal^a	2,023	29	4
Gray	12	50	3
Pre	4	57	1

ISSN: 1756-994X