Table 5.

Summary statistics for DAP metabolites in children’s urine samples collected on the same day as dust samples by location and collection time point (nmol/l).^a,^b,^c

DAPs	Community	Collection time point	nc	% DF	Metabolite concentrations in children’s urine (nmol/l)
					p25	p50	p75	p95	Max
DEP	Agricultural	1	20	45	<LOD	<LOD	32	142	205
		2	20	45	<LOD	<LOD	121	307	401
	Urban	1	20	65	<LOD	16	47	121	181
		2	19	79	7	20	33	118	119
DETP	Agricultural	1	20	65	<LOD	19	36	103	104
		2	20	50	<LOD	4	42	78	81
	Urban	1	20	60	<LOD	6	13	139	169
		2	19	32	<LOD	<LOD	12	49	49
DEDTP	Agricultural	1	20	5	<LOD	<LOD	<LOD	<LOD	4
		2	20	0	—	—	—	—	—
	Urban	1	20	15	<LOD	<LOD	<LOD	37	63
		2	19	5	<LOD	<LOD	<LOD	90	90
DMP	Agricultural	1	20	40	<LOD	<LOD	62	192	206
		2	20	45	<LOD	<LOD	34	188	227
	Urban	1	20	80	8	20	46	149	223
		2	19	63	<LOD	15	40	57	57
DMTP	Agricultural	1	20	100	47	119	199	426	525
		2	20	90	24	54	151	669	993
	Urban	1	20	95	24	51	134	527	777
		2	19	84	9	19	98	259	259
DMDTP	Agricultural	1	20	25	<LOD	<LOD	2	36	39
		2	20	20	<LOD	<LOD	<LOD	57	69
	Urban	1	20	40	<LOD	<LOD	11	97	98
		2	19	11	<LOD	<LOD	<LOD	10	10

Abbreviations: LOD, limit of detection; DF, detection frequency; “—”, statistic not reported when analyte was not detected.

^aDetection limits: DEP = 0.2 μg/l (1.3 nmol/l), DETP and DEDTP = 0.1 μg/l (0.6 nmol/l), DMP = 0.6 μg/l (4.8 nmol/l), DMTP = 0.2 μg/l (1.4 nmol/l), and DMDTP = 0.1 μg/l (0.6 nmol/l).

^bConcentrations reported are not creatinine adjusted.

^cOne participant in the urban cohort (Oakland, CA) was lost to follow-up before collection of the second urine sample.