Table 2.
Descriptive statistics for six individual PFAS species included in analysis. Statistics are shown separately for VDAART mothers and children.
| PFAS Analyte | N | Limit of Detection (ng/mL) | Percent detection above LOD (%) | Median (ng/mL) | 25th–75th Percentiles |
|---|---|---|---|---|---|
| VDAART Mothers at 32-38 gestational weeks | |||||
| PFOA | 459 | 0.1 | 99.7 | 1.3 | 0.9–1.8 |
| PFOS a | 459 | 0.1 | 100 | 3.9 | 2.7–5.2 |
| PFDEA | 459 | 0.1 | 90.2 | 0.2 | 0.2–0.3 |
| PFHXS | 459 | 0.1 | 99.6 | 0.8 | 0.5–1.4 |
| PFNA | 459 | 0.1 | 99.3 | 0.5 | 0.4–0.7 |
| PFUA b | 459 | 0.1 | 68.0 | 0.2 | 0.1–0.2 |
| VDAART Children at age 6 years | |||||
| PFOA | 401 | 0.1 | 99.0 | 1.4 | 1.1–2.0 |
| PFOS a | 401 | 0.1 | 99.8 | 2.3 | 1.7–3.4 |
| PFDEA | 401 | 0.1 | 78.3 | 0.2 | 0.1–0.2 |
| PFHXS | 401 | 0.1 | 99.8 | 0.7 | 0.5–1.1 |
| PFNA | 401 | 0.1 | 96.3 | 0.4 | 0.3–0.5 |
| PFUA b | 401 | 0.1 | 24.2 | 0.1 | 0.1–0.2 |
a
Linear and branched PFOS were combined
b
PFUA was converted to a binary variable for yes/no detected due to low percent of detection