Table 2.
Geometric mean or 75th percentile of serum concentrations of PFAS (in μg/L) in HCC cases and controls.
| PFAS | Controls (n = 50) | Cases (n = 50) |
|---|---|---|
| PFOS, GM (GSD) | 29.2 (1.95) | 29.2 (2.37) |
| PFOA, GM (GSD) | 4.78 (1.89) | 4.21 (2.13) |
| PFHxS, GM (GSD) | 2.07 (2.25) | 1.84 (3.11) |
| PFNA, GM (GSD) | 0.827 (1.85) | 0.844 (2.05) |
| PFDA, GM (GSD) | 0.278 (2.84) | 0.27 (2.97) |
| PFUnDA, 75th percentile | ∗ | 0.89 |
GM, geometric mean; GSD, geometric standard deviation; HCC, hepatocellular carcinoma; PFAS, perfluoroalkyl substances; PFDA, perfluorodecanoate; PFHxS, perfluorohexane sulfonate; PFNA, perfluorononanoate; PFOA, perfluorooctanoate; PFOS, perfluorooctane sulfonate; PFUnDA, perfluoroundecanoic acid.
∗
Geometric mean not calculated for PFAS with >40% of samples below limit of detection.