Prenatal Exposure to Perfluorocarboxylic Acids (PFCAs) and Fetal and Postnatal Growth in the Taiwan Maternal and Infant Cohort Study

http://dx.doi.org/10.1289/ehp.1509998



Table 2. Prenatal PFOA and long-chain PFCAs concentrations in serum samples in the Taiwan Maternal and Infant Cohort Study, 2000–2001.
Prenatal exposure (ng/mL) Molecular formula Detection rate (%) Geometric mean (95% CI) Mina 25th 50th 75th 90th Max
Abbreviations: Max, maximum; Min, minimum. 25th, 50th, 75th, and 90th are percentiles.
aMinimum values correspond to imputed values for concentrations < LOQ. Values were imputed as expected values (E) conditional on being below the LOQ (E[x|x ≤ LOQ]).
Female (= 106)
PFOA C7F15CO2H 86 1.98 (1.69, 2.32) 0.39 1.57 2.34 3.43 4.64 7.70
PFNA C8F17CO2H 97 1.44 (1.19, 1.74) 0.08 0.84 1.58 2.42 4.54 10.30
PFDeA C9F19CO2H 75 0.37 (0.32, 0.42) 0.16 0.16 0.43 0.64 0.83 1.24
PFUnDA C10F21CO2H 90 2.89 (2.12, 3.94) 0.10 1.46 3.31 9.15 14.05 38.00
PFDoDA C11F23CO2H 82 0.30 (0.25, 0.35) 0.06 0.23 0.37 0.51 0.67 1.26
Male (= 117)
PFOA C7F15CO2H 85 1.97 (1.67, 2.31) 0.39 1.35 2.37 3.47 4.60 13.50
PFNA C8F17CO2H 97 1.39 (1.16, 1.66) 0.08 0.92 1.55 2.60 4.24 10.25
PFDeA C9F19CO2H 73 0.40 (0.35, 0.46) 0.16 0.16 0.46 0.72 0.96 1.57
PFUnDA C10F21CO2H 92 3.12 (2.36, 4.14) 0.10 1.67 3.52 9.35 15.40 43.10
PFDoDA C11F23CO2H 80 0.28 (0.23, 0.33) 0.06 0.19 0.37 0.56 0.73 1.17