Table 4. Comparison of geometric mean (GMs) and geometric standard deviations (GSDs) and the observed 95th percentiles for the distributions of spot and 24 h composite samples in the two studies (see Table 2).
| Study, compound |
GM (GSD) |
Observed concentration @ 95th %ile |
Maximum observed multiday average | Ratio, spot:24 h GMs | Ratio, spot:24 h 95th %iles |
Ratio, spot 95th %ile to maximum multiday avg |
||||
|---|---|---|---|---|---|---|---|---|---|---|
| Spot | 24 h | All spots | Daytime spots | 24 h | All spots | Daytime spots | ||||
| Unadj., ng/ml: | ||||||||||
| CEFIC, MP | 55.2 (4.4) | 59.7 (3.8) | 431.5 | 337 | 940.8 | 545.3 | 0.9 | 0.5 | 0.8 | 0.6 |
| CEFIC, Triclosan | 104.4 (17.7) | 102.5 (18.6) | 2050 | 1750 | 1626.6 | 1426.7 | 1.0 | 1.3 | 1.4 | 1.2 |
| CEFIC, BPA | 1.17 (2.7) | 1.4 (2) | 5.8 | 5.2 | 4.7 | 2.6 | 0.8 | 1.2 | 2.2 | 2.0 |
| CDC, BPA | 1.7 (2.8) | 2.2 (1.9) | 9.8 | 8.1 | 6.2 | 4.5 | 0.8 | 1.6 | 2.2 | 1.8 |
| CDC, MEHHP | 22.9 (5.5) | 37.8 (3.3) | 370.6 | 432 | 278.6 | 132.3 | 0.6 | 1.3 | 2.8 | 3.3 |
| CDC, MEP | 59.3 (5.6) | 100.1 (4.8) | 1410.8 | 1446 | 894.4 | 881.1 | 0.6 | 1.6 | 1.6 | 1.6 |
| Cr-adj., μg/g cr: | ||||||||||
| CEFIC, MP | 70.3 (4.2) | 73.1 (4.1) | 630.8 | 580 | 744.6 | 411.1 | 1.0 | 0.8 | 1.5 | 1.4 |
| CEFIC, Triclosan | 133 (15.4) | 125.5 (16.3) | 1359.2 | 1446.5 | 1227.5 | 1075.7 | 1.1 | 1.1 | 1.3 | 1.3 |
| CEFIC, BPA | 1.6 (2.5) | 1.9 (2.1) | 7.2 | 6.6 | 7.8 | 3.8 | 0.8 | 0.9 | 1.9 | 1.7 |
| CDC, BPA | 2.6 (2.3) | 2.9 (1.8) | 11.4 | 11.8 | 6.7 | 6.2 | 0.9 | 1.7 | 1.8 | 1.9 |
| CDC, MEHHP | 35.2 (3.7) | 49 (2.9) | 482.8 | 594.9 | 304.8 | 182.7 | 0.7 | 1.6 | 2.6 | 3.3 |
| CDC, MEP | 91 (5.4) | 132.1 (4.8) | 2640.1 | 2932.9 | 2250.0 | 2496.6 | 0.7 | 1.2 | 1.1 | 1.2 |
Assessments are presented on the basis of unadjusted concentrations (ng/ml) and on the basis of cr-adjusted concentrations (μg/g cr). “Daytime” spots are those restricted to typical times of collection in NHANES, 9:00 to 21:00.