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. 2017 Mar 15;22:5. doi: 10.1186/s12199-017-0618-7

Table 1.

Urinary concentrations of each parabens of this subjects (n = 42) a

Unit GM SD Median Min Max Detection rate (%)
MP SG-adjusted ng/mL 48.2 4.52 43.8 5.32 1042 100
Creatine-adjusted μg/g cre 37.4 4.47 28.6 3.11 571
EP SG-adjusted ng/mL 1.88 4.72 1.38 0.0895 157 100
Creatine-adjusted μg/g cre 1.46 4.91 1.11 0.0907 151
PP SG-adjusted ng/mL 1.13 6.75 1.49 <0.065 75.1 93
Creatine-adjusted μg/g cre 0.890 6.18 0.985 70.3
BP SG-adjusted ng/mL 0.184 11.1 0.166 <0.0090 29.9 88
Creatine-adjusted μg/g cre 0.148 10.9 0.124 18.5
ETP b SG-adjusted μM 2.45 4.50 2.01 0.201 57.5 NA c
Creatine-adjusted 1.90 4.47 1.69 0.192 48.1

Abbreviations: MP methyl paraben, EP ethyl paraben, PP propyl paraben, BP butyl paraben, ETP estrogen-equivalent total paraben

a Means and median were calculated by substituting 1/2 of LOD for subjects with urinary concentration below detection limit

b ETP was the sum of the urinary concentrations of 4 parabens weighted by relative estrogenic activity obtained in a yeast estrogen screen assay by Routledge et al. [8]

c Not Applicable