Table 2:
Distribution of uncorrected and specific-gravity corrected (italics) prenatal urinary phthalate metabolites, CHAMACOS study 1999–2000
| % > LOD |
Average of two measurements |
||||||
|---|---|---|---|---|---|---|---|
| Phthalate Metabolite | 1st measurementa | 2nd measurementb | Geo. Mean | 25th% | 50th% | 75th% | 95th% |
| MEP (ng/ml) | 100.0% | 99.8% | 184.6 | 78.2 | 181.5 | 422.5 | 1287.8 |
| 236.7 | 105.5 | 230.5 | 520.1 | 1662.8 | |||
| MBP (ng/ml) | 98.3% | 100% | 22.9 | 12.3 | 21.9 | 45.9 | 107.8 |
| 28.5 | 16.0 | 27.2 | 51.1 | 121.2 | |||
| MiBP (ng.ml) | 92.5% | 94.9% | 2.7 | 1.5 | 2.8 | 5.4 | 15.8 |
| 3.3 | 1.8 | 3.4 | 6.3 | 16.3 | |||
| MBzP (ng/ml) | 97.6% | 98.7% | 7.2 | 3.8 | 7.8 | 14.9 | 34.4 |
| 8.9 | 4.9 | 9.4 | 17.8 | 40.2 | |||
| ΣDEHP (nmol/ml) | NA | NA | 0.2 | 0.1 | 0.2 | 0.3 | 0.8 |
| 0.2 | 0.1 | 0.2 | 0.4 | 0.9 | |||
| MCPP (ng.ml) | 87.6% | 93.7% | 1.7 | 1 | 2.1 | 3.2 | 6.3 |
| 2.1 | 1.3 | 2.4 | 3.7 | 7.0 | |||
| MCOP (ng/ml) | 97.3% | 96.7% | 2.9 | 1.7 | 3.1 | 4.9 | 10.5 |
| 3.7 | 2.3 | 3.8 | 5.5 | 10.8 | |||
| MCNP (ng.ml) | 95.4% | 97% | 1.8 | 1.2 | 1.9 | 3 | 6.0 |
| 2.2 | 1.5 | 2.3 | 3.3 | 7.4 | |||
Abbreviations: LOD = limit of detection
a
Mean 14.2 SD ± 5.0 weeks gestation
b
Mean 26.9 SD ± 2.4 weeks gestation