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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: Environ Int. 2013 Feb 15;54:74–84. doi: 10.1016/j.envint.2012.12.014

Table 2.

Spearman correlations between estimated dietary intake of PFOS and PFOA and PFAS plasma concentrations, n=487

Plasma concentrations
PFOS PFOA PFHxS2 PFNA
Estimated intakes1 Median Spearman correlation coefficients r (95% CI)
PFOS 44.6 ng/day 0.25 (0.16, 0.33) 0.13 (0.04, 0.22) 0.16 (0.07, 0.25) 0.26 (0.17, 0.34)
PFOA 34.2 ng/day 0.23 (0.14, 0.31) 0.17 (0.09, 0.26) 0.22 (0.13, 0.30) 0.28 (0.20, 0.36)
1

PFOS and PFOA estimated from food intakes by FFQ and a database of PFAS concentrations in Norwegian food items

2

For PFHxS n=485