Table 1.

Geometric means (95% CI) of urinary creatinine-corrected concentrations (μg/g creatinine) of low molecular weight phthalates^a, high molecular weight phthalates^b, and the sum of four metabolites of di-2-ethylhexyl phthalate (ΣDEHP)^c in relation to selected baseline characteristics.

Characteristic	No. (%)	Low Molecular Weight Phthalates		High Molecular Weight Phthalates		ΣDEHP
		Geometric Mean	95% CI	Geometric Mean	95% CI	Geometric Mean	95% CI
Age (years) at baseline	1017
6 to <7	262 (26)	184	165–206	199	186–213	182	164–203
7 to <8	537 (53)	136	126–147	234	212–258	152	142–164
≥8	218 (21)	163	143–186	195	173–220	152	134–174

Race/Ethnicity	1017
Non-Hispanic White	365 (36)	102	94–111	182	169–196	138	127–150
Non-Hispanic Black	304 (30)	202	182–224	193	175–214	148	133–165
Hispanic	296 (29)	204	184–226	264	239–291	209	188–233
Asian	52 (5)	101	81–127	180	146–222	144	114–182

Caregiver Education	993
≤High School	485 (49)	192	177–209	233	216–252	182	168–198
College	334 (34)	131	119–143	188	174–204	146	133–159
<College	174 (17)	104	91–118	176	156–198	130	115–148

Season of urine sample collection	1017
Summer	279 (27)	177	158–199	208	191–227	160	145–176
Other Season	738 (73)	145	136–155	206	193–219	159	149–170

Baseline BMI Percentile	1017
≤50	343(34)	134	122–147	210	192–230	161	146–177
>50^th to <85th	349 (34)	150	136–165	203	186–221	156	142–171
≥85th	325 (32)	180	163–200	109	191–229	163	148–179

Site	1017
MSSM	306 (30)	253	229–279	305	276–555	242	217–270
Cincinnati	309 (30)	128	116–142	179	165–195	135	123–147
KPSF	402 (40)	120	110–130	171	159–183	132	122–143

Low Molecular Weight Phthalates: molar sum of MEP, MBP, and MiBP (metabolites of diethyl phthalate (DEP), dibutyl phthalate, (DBP), and diisobutyl phthalate (DiBP), respectively)

High Molecular Weight Phthalates: molar sum of MEHP, MEHHP, MEOHP, MECPP (metabolites of DEHP)), MCPP (metabolite of di-n-octyl phthalate (DnOP)), and MBzP (metabolite of benzylbutyl phthalate (BzBP))

ΣDEHP: the molar sum of MEHP, MEHHP, MEOHP, MECPP (metabolites of DEHP)