Table 1.
Urinary concentrations of MEP and MEHHP for all spot urine samples, first morning voids, and reconstructed 24-hr collections from all eight participants.a
| Urinary concentrations [uncorrected (μg/L) and creatinine corrected (μg/g)] |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| All spot samples (n = 427) |
First morning void (n = 56) |
Reconstructed 24-hr collection (n = 56) |
|||||||
| Phthalate metabolite | GM | Median | Interquartile | GM | Median | Interquartile | GM | Median | Interquartile |
| MEP | |||||||||
| μg/L | 61.7 | 50.8 | 20–199 | 103 | 69 | 20.1–309 | 97.1 | 68.5 | 30.1–411 |
| μg/g creatinine | 105 | 75 | 32–280 | 86.7 | 45 | 30.3–161 | 136 | 97.1 | 41–409 |
| MEHHP | |||||||||
| μg/L | 22.2 | 21.3 | 6.7–71.6 | 40.2 | 36.5 | 22.9–73.9 | 38.8 | 28.4 | 16.5–115 |
| μg/g creatinine | 37.6 | 29.8 | 15.5–76.2 | 33.6 | 28.05 | 18.4–55.4 | 55.9 | 44.7 | 21.8–163 |
a
For comparison purposes, the National Health and Nutrition Examination Survey (NHANES) 2005–2006 urinary concentrations (GM, median, 75th percentile) in micrograms per liter for adults are MEP (173, 168, 453) and MEHHP (23.4, 21.4, 48.6) (CDC 2010).