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. 2016 Jan 22;124(8):1269–1275. doi: 10.1289/ehp.1509869

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Difference in levels of sex hormones and IGF-1 in relation to PFAS (continuous or quartiles) in girls 6–9 years of age (n = 1,123), Mid-Ohio Valley (USA), 2005–2006. Abbreviations: IGF-1, insulin-like growth factor-1; PFAS, perfluoroalkyl substances; PFHxS, perfluorohexane sulfonate; PFNA, perfluorononanoic acid; PFOA, perfluorooctanoate; PFOS, perfluorooctane sulfonate; Q, quartile; Ref, reference. Models were adjusted for age and month of sampling. In addition, testosterone models were adjusted for time of sample collection. Estimates and 95% confidence intervals are presented. p-Trend was < 0.05 for PFOS and total testosterone or IGF-1, and PFNA and IGF-1.