Table 2.
Specific gravity (SG) standardized maternal urinary OPE metabolite concentrations (μg/L) during gestation, HOME Study (2003-2006)
OPE metabolite | N | N<LOD (%) | GM (GSD) | Percentiles |
||
---|---|---|---|---|---|---|
25th | 50th | 75th | ||||
16-week | ||||||
BCEP | 339 | 40 (11.9%) | 0.60 (3.16) | 0.32 | 0.59 | 1.06 |
BDCIPP | 335 | 14 (4.2%) | 0.80 (2.52) | 0.40 | 0.76 | 1.49 |
DNBP | 339 | 54 (16.0%) | 0.26 (2.05) | 0.16 | 0.25 | 0.37 |
DPHP | 339 | 4 (1.2%) | 1.82 (2.58) | 0.97 | 1.61 | 3.19 |
26-week | ||||||
BCEP | 329 | 54 (16.5%) | 0.51 (4.33) | 0.22 | 0.49 | 1.08 |
BDCIPP | 329 | 35 (10.7%) | 0.60 (3.29) | 0.27 | 0.60 | 1.12 |
DNBP | 329 | 81 (25.2%) | 0.20 (2.29) | 0.12 | 0.20 | 0.30 |
DPHP | 328 | 8 (2.4%) | 1.24 (2.55) | 0.68 | 1.23 | 2.07 |
Abbreviations: Bis(2-chloroethyl) phosphate (BCEP), bis(1,3-dichloro-2-propyl) phosphate (BDCIPP), di-n-butyl phosphate (DNBP), and diphenyl phosphate (DPHP)
GM, geometric mean; GSD, geometric standard deviation. LOD, limit of detection. LOD was 0.1 μg/L for all OPE metabolites.