Table 1.

Unadjusted phthalate metabolite concentrations (μg/L) in maternal second trimester urine.

Metabolite	% > LOD	Range	GM	25th Percentile	50th Percentile	75th Percentile
MEHPa	99.1	< LOD–120.13	3.31	1.59	3.31	6.68
MEHHPa	100	0.61–250.47	10.38	5.31	10.74	19.36
MEOHPa	100	0.60–192.35	8.45	4.50	8.73	16.12
MECPPa	100	0.87–336.18	14.81	7.88	15.51	27.80
MBzPa	99.2	< LOD–515.52	8.13	3.55	8.56	17.66
ΣHMWPb	99.1	< LOD–17.03	0.18	0.10	0.19	0.33
MBPa	99.1	< LOD–1129.72	16.66	8.82	16.96	32.09
MiBPa	98.9	< LOD–374.22	9.71	5.49	10.30	17.90
MEPa	100	1.39–22520.68	50.41	17.29	46.00	144.17
MMPa	99.4	< LOD–86.09	2.35	1.29	2.36	4.28
ΣLMWPb	99.1	< LOD–116.30	0.49	0.22	0.43	1.07

LOD = limit of detection; GM = geometric mean.

^aLOD = 0.10 μg/L.

^bμmol/L.