Table 3.

Distribution of urinary parabens concentration in urine samples

Parabens in urine (μg/L)	Statistics
	A Mean ± SD	G Mean ± SD	LOD	Q25	Median	Q75	Q95	Max	>LOD (%)
First urine sample N = 511
MP	198.91 ± 224.37	92.68 ± 4.28	0.5	37.69	119.74	280.89	688.12	1260.36	93.92
EP	57.21 ± 112.02	11.28 ± 7.00	0.5	2.00	9.52	56.42	258.96	785.72	84.31
PP	97.80 ± 430.61	16.20 ± 6.33	0.5	4.06	15.54	59.21	371.12	7193.09	84.11
BP	10.13 ± 20.22	4.70 ± 2.96	1.0	1.99	3.95	8.60	40.89	202.43	64.12
iBuP	5.19 ± 6.53	3.16 ± 2.55	1.0	1.35	2.47	6.07	19.06	34.95	10.60
∑ Parabens (nmol/ml)	176.61 ± 158.75	25.60 ± 4.62	0.5	9.42	30.24	82.24	275.63	1895.31
SG adjusted (μg/L)
MP	232.97 ± 287.21	107.93 ± 4.39	0.5	43.1	145.76	316.12	731.34	2922.30	93.92
EP	62.64 ± 121.45	12.90 ± 7.04	0.5	2.37	13.10	62.76	264.13	42.43	84.31
PP	98.94 ± 382.95	18.67 ± 6.25	0.5	4.56	18.49	72.70	359.68	5394.81	84.11
BP	10.90 ± 21.58	5.02 ± 3.05	1.0	2.27	4.29	9.73	37.21	197.77	64.12
iBuP	4.61 ± 5.54	2.80 ± 2.68	1.0	1.24	2.53	4.86	15.38	30.92	10.60
Second urine sample N = 120
MP	116.62 ± 154.42	49.13 ± 105.39	0.5	19.08	61.22	154.14	216.85	993.87	90.83
EP	33.91 ± 71.06	5.71 ± 44.97	0.5	1.19	3.51	24.09	37.21	391.51	71.67
PP	32.91 ± 71.06	9.14 ± 38.58	0.5	2.44	9.86	25.65	42.11	504.93	70
BP	9.44 ± 30.90	3.99 ± 9.90	1.0	1.90	3.43	7.76	9.21	235.34	47.5
∑ Parabens (nmol/ml)	48.22 ± 81.86	16.99 ± 198.84	0.5	6.16	4.88	52.91	76.34	531.41
SG adjusted (μg/L)
MP	149.84 ± 207.56	67.18 ± 125.60	0.5	24.20	91.16	204.18	312.78	1715.13	90.83
EP	38.45 ± 77.20	7.85 ± 8.85	0.5	1.58	4.73	37.71	42.15	534.96	71.67
PP	39.75 ± 82.17	46.49 ± 52.13	0.5	3.46	11.49	10.02	17.21	470.18	70
BP	8.95 ± 17.41	4.74 ± 7.73	1.0	2.23	4.37	9.51	11.22	126.08	47.5

A Mean artimetic mean, G Mean geometric mean, Q25 25 quartile, Q75 75 quartile, Q95 95 quartile, LOD limit of detection, MP methyl-paraben, EP ethyl-paraben, PP propyl-paraben, BP butyl-paraben, iBuP izobuthyl-paraben