Table 4. Maternal and Infant Characteristics Among Cases of Small Intestinal Atresia/Stenosis with and without Trisomy 21 from 25 U.S. States, 2010–2014^a.

	Cases with trisomy 21		Cases without trisomy 21
Characteristic	Count	Column percent	Count	Column percent	p-valueb
Maternal race/ethnicityc
White, non-Hispanic	269	55.5	1447	51.7	<0.001
Black, non-Hispanic	38	7.8	515	18.4
Hispanic	151	31.1	689	24.6
Asian or Pacific Islander, non-Hispanic	27	5.6	134	4.8
American Indian or Alaska Native, non-Hispanic	0	0.0	14	0.5
Maternal age (years)c
<20	16	3.3	301	10.6	<0.001
20–24	61	12.4	721	25.4
25–29	91	18.6	749	26.4
30–34	94	19.2	678	23.9
35–39	105	21.4	311	11.0
40+	123	25.1	79	2.8
Infant sexc
Male	265	53.6	1386	48.6	0.040
Female	229	46.4	1463	51.4

^aPrograms contributing to the table: Arkansas (2010–2013), Delaware, Florida, Georgia (Metropolitan Atlanta Congenital Defects Program), Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Massachusetts, Mississippi, Missouri, Nebraska, Nevada, New Jersey, New York, Oklahoma, Oregon, Rhode Island, Tennessee, Texas, Vermont, West Virginia, and Wisconsin.

^bPearson chi-square test was used to perform all tests of proportions.

^cCounts of other and/or unknown are not shown.