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Fig. 2 | BMC Oral Health

Fig. 2

From: Association of per- and polyfluoroalkyl substances (PFAS) with periodontitis: the mediating role of sex hormones

Fig. 2

The associations of PFAS mixtures and single-PFAS with periodontitis in NHANES 2009–2014 (N = 3248). A: Heatmap of seven PFASs correlation; B: The overall effect of PFAS mixtures using the BKMR model; C: Association of single PFAS with periodontitis when other PFAS are fixed at a specific quantile (25th, 50th, and 75th). Adjusted by age, sex, race/ethnicity, educational attainment, marital status, BMI, smoking status, alcohol intake, milk product consumption, poverty income ratio, and serum cotinine

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BMC Oral Health

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