Table 7. Urine paraben and phenol total concentration (μg/L) quintiles and between visit correlations.

Compound	Visit (n)	Min	5^th	25^th	Median	75^th	95^th	Max	Significance
Butyl paraben	1 (34)	<LOD	<LOD	0.4	1.4	4.6	16.7	65.5	^*
	2 (33)	<LOD	<LOD	0.5	2.9	6.8	69.6	110	^*
Ethyl paraben	1(34)	<LOD	<LOD	<LOD	5.3	19.4	84	135	^***
	2(33)	<LOD	<LOD	<LOD	1.0	29	63.6	497	^***
Methyl paraben	1(34)	<LOD	11.6	75.3	143	266	1610	1710	^**
	2(33)	6.7	17.1	45.8	125	248	968	993	^**
Propyl paraben	1(34)	<LOD	1	13.8	28.6	69	207	243	^**
	2(33)	0.4	0.5	7.5	41.3	93.9	208	279	^**
Triclosan	1(34)	<LOD	<LOD	8.2	18.4	54.7	405	567	^**
	2(33)	<LOD	<LOD	6.3	17.9	71.5	289	295	^**
Benzophenone-3	1(34)	<LOD	<LOD	<LOD	4.7	22.3	1440	3200	No
	2(33)	<LOD	<LOD	0.7	36.7	158	1880	2710	No
Bisphenol A	1(34)	<LOD	0.6	0.6	1.1	4.1	16.9	20	No
	2(33)	<LOD	<LOD	0.5	1.0	3	28.3	31.9	No
2,4-Dichlorophenol	1(34)	<LOD	<LOD	0.3	0.5	0.9	3.1	3.2	^***
	2(33)	<LOD	<LOD	0.2	0.7	1.1	3.8	19.5	^***
2,5-Dichlorophenol	1(34)	<LOD	<LOD	0.6	1.9	6.2	53.5	65.3	^***
	2(33)	<LOD	<LOD	0.6	3.1	6.9	84.1	778	^***

‘Total’ concentrations refer to the sum of the free plus conjugated species. Urine paraben/phenol significant between visit correlation, p-value

<0.05,

^**

<0.01,

^***

<0.001.

Concentrations below the limit of detection (LOD) were assigned a value equal to LOD divided by the square root of 2, for all calculations.