Urinary Paraben Concentration and Its Association with Serum Triglyceride Concentration in 2013-2014 NHANES Participants: A Cross-Sectional Study

Table 4

Distribution of methylparaben, ethylparaben, and propylparaben concentrations (ng/ml) among participants (N = 827).

Parabens (ng/ml)	Methyl	Ethyl	Propyl
(1) Geometric mean	57.1	2.54	6.54
(2) Detection frequency (%)	99.3	50.1	98.8
(3) Interquartile range	182.4	6.49	39.1
(i) 25%	17.5	0.71	1.10
(ii) 50%	55.4	1.00	6.30
(iii) 75%	199.9	7.20	40.2

Note. The limit of detection was 1.0 μg/L for methylparaben, 1.0 μg/L for ethylparaben, and 0.1 μg/L for propylparaben.