Serum PFAS concentrations in younger versus older never-pregnant women, N=158
| Women aged | Sum PFOS ng/mL | P value | Sum PFSA ng/mL | P value | Sum PFAS ng/mL | P value* |
| 18–30 years N=135 | 4.12 (2.99–5.71) | 0.002 | 4.95 (3.71–6.53) | 0.004 | 7.57 (5.67–9.37) | 0.009 |
| 31–39 years N=23 | 6.18 (4.40–8.39) | 6.86 (5.30–9.63) | 9.37 (7.54–12.89) |
*Values are given as median (IQR) and compared by Mann-Whitney U test.
PFAS, perfluoroalkyl substance; PFOS, perfluorooctanesulfonic acid; PFSA, perfluorosulfonic acids.