Pregnancy complications and birth outcomes following low-level exposure to per- and polyfluoroalkyl substances in the vitamin D antenatal asthma reduction trial.

PFDEA, PFNA and PFUA concentrations were found to be nominally significantly associated with a higher number of gestational weeks at delivery (PFDEA: β 0.36, 95% CI 0.03–0.69, p = 0.04; PFNA: β 0.34, 95%CI 0.01–0.66, p = 0.04; PFUA: β 0.34, 95% CI 0.05–0.63, p = 0.04) but were not robust to multiple testing correction ( Table 4 ).

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