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Table 1 Description of Chemicals in Our Bodies analytic sample analyzing per- and poly-fluoroalkyl substances, and polybrominated diphenyl ethers and maternal and newborn telomere length

From: Mixture effects of prenatal exposure to per- and polyfluoroalkyl substances and polybrominated diphenyl ethers on maternal and newborn telomere length

  Newborn Subsample (N = 292) Maternal Subsample (N = 110) Matched Maternal–Fetal Unit Pairs Subsample (N = 76)
N (%) or Mean (SD) N (%) or Mean (SD) N (%) or Mean (SD)
Maternal Age at Enrollment, years
 Mean (SD) 34 (5.0) 33 (5.4) 34 (5.1)
Gestational age at delivery
 Mean (SD) 39 (1.7) 39 (1.5) 39 (1.7)
Pre-pregnancy BMI (kg/m2)
 Mean (SD) 25 (5.1) 26 (5.6) 25 (5.2)
Maternal Education
 Less than High School 25 (9%) 14 (13%) 4 (5%)
 High School Degree or Some College 59 (20%) 24 (22%) 11 (14%)
 College Degree 81 (28%) 34 (31%) 28 (37%)
 Graduate Degree 127 (43%) 38 (35%) 33 (43%)
Maternal Race/Ethnicity
 Non-Hispanic White 126 (43%) 46 (42%) 40 (53%)
 Non-Hispanic Black 10 (3%) 4 (4%) 2 (3%)
 Asian/Pacific Islander 62 (21%) 16 (15%) 14 (18%)
 Latina 85 (29%) 39 (35%) 17 (22%)
 Other 9 (3%) 5 (5%) 3 (4%)
Parity
 No Prior Births 162 (55%) 52 (47%) 40 (53%)
 One or More Prior Births 130 (45%) 58 (53%) 36 (47%)
  1. Abbreviations: SD Standard deviation
  2. Note: There are 326 pregnant participants, of which there are 76 matched maternal–fetal unit pairs