Intra-individual variations of organophosphate pesticide metabolite concentrations in repeatedly collected urine samples from pregnant women in Japan

Table 4 Surrogate category analyses based on a single random Cr-adjusted sample obtained from a set of 1000 resamples (%)

Compounds	All	FMV	PM
DMP/Cr	97.4	96.3	99.8
DMTP/Cr	95.6	95.6	94.7
DMDTP/Cr	75.4	74.7	87.5
DEP/Cr	90.2	93.6	91.2
DETP/Cr	84.6	86.6	91.4
DEDTP/Cr	93.0	88.1	98.9
ΣDMAP/Cr	97.8	95.5	99.3
ΣDEAP/Cr	90.9	94.2	91.9
ΣDAP/Cr	98.9	98.9	99.5

DMP dimethylphosphate; DMTP dimethylthiophosphate; DMDTP dimethyldithiophosphate; DEP diethylphosphate; DETP diethylthiophosphate; DEDTP diethyldithiophosphate; ΣDMAP sum of DMP, DMTP, and DMDTP; ΣDEAP, sum of DEP, DETP, and DEDTP; ΣDAP sum of six DAPs; Cr urinary creatinine; FMV first morning void; PM spot urine in afternoon

ISSN: 1347-4715