TABLE 1.
Subject demographics
| Total N = 152 | |
|---|---|
| Race | N (%) |
| White | 139 (91) |
| Asian | 11 (7) |
| Native American | 3 (2) |
| African American | 2 (1) |
| Ethnicity | |
| Non-Hispanic | 134 (88) |
| Hispanic | 18 (12) |
| Annual household income | |
| <$100k | 42 (28) |
| $100–$150k | 36 (24) |
| $150–$250k | 39 (26) |
| >$250k | 23 (15) |
| Unreported | 12 (8) |
| Gestational age at NIPT (wks) | 13 ± 5.4 |
| Fetal fraction on NIPT (%) | 9.2 ± 3.9 |
| Maternal prepregnancy BMI, M ± SD (kg/cm2) | 26 ± 6.0 |
| Prenatal diagnostic testing (CVS or amniocentesis) | 65 (43) |
| Final karyotype result | |
| 47,XXY | 104 (68) |
| 47,XXX | 27 (18) |
| 47,XYY | 15 (10) |
| 48,XXYY | 6 (4) |
| Birthweight (kg) | 3.25 ± 0.7 |
| Gestational age at delivery (wks) | 38.7 ± 1.4 |
| Maternal age at delivery (years) | 35.3 ± 4.8 |
| Geographic regiona | |
| Northeast | 31 (20) |
| Midwest | 24 (16) |
| South | 42 (28) |
| West | 53 (35) |
| International | 2 (1) |
Note: Data are mean ± standard deviation (SD) or n (%).
Abbreviations: BMI, body mass index; CVS, chorionic villus sampling; NIPT, noninvasive prenatal testing.
a
US Geographic Regions as designated by the US Census BureauNortheast: CT, MA, ME, NH, NJ, NY, PA, RI, VT; Midwest: IA, IL, IN, KS, MI, MN, MO, NE, ND, OH, SD, WI; South: AL, AR, DC, DE, FL, GA, KY, LA, MD, MS, NC, OK, SC, TN, TX, VA, WV; West: AK, AZ, CA, CO, HI, ID, MT, NM, NV, OR, UT, WA WY.