Table 4.
Dialkylphosphate Urinary Metabolite Molar Weights (µmol/L) for Farmworkers and Non-Farmworkers, 2012 and 2013.
| Dialkylphosphate Urinary Metabolites |
Farmworkers | Non-farmworkers | Farmworkers Compared to Non- Farmworkers |
p-value | |||
|---|---|---|---|---|---|---|---|
| Mean | SE | Mean | SE | Mean | SE | ||
| 2012 | |||||||
| N=203 | N=129 | ||||||
| DMP | 0.81 | 0.18 | 0.34 | 0.11 | 2.42 | 0.91 | 0.0197 |
| DMTP | 1.68 | 0.28 | 1.10 | 0.24 | 1.52 | 0.39 | 0.0998 |
| DMDTP | 0.0042 | 0.0027 | 0.0028 | 0.0019 | 1.48 | 1.46 | 0.6979 |
| DEP | 0.97 | 0.17 | 0.20 | 0.05 | 4.89 | 1.37 | <.0001 |
| DETP | 0.06 | 0.01 | 0.04 | 0.01 | 1.30 | 0.51 | 0.5072 |
| ΣDAPs | 71.97 | 7.79 | 40.87 | 5.41 | 1.76 | 0.28 | 0.0003 |
| 2013 | |||||||
| N=112 | N=78 | ||||||
| DMP | 1.56 | 0.35 | 1.23 | 0.36 | 1.27 | 0.45 | 0.4970 |
| DMTP | 4.14 | 0.83 | 3.85 | 0.87 | 1.08 | 0.31 | 0.8007 |
| DMDTP | 0.01 | 0.01 | 0.01 | 0.01 | 1.49 | 1.35 | 0.6665 |
| DEP | 7.08 | 1.55 | 6.18 | 1.41 | 1.15 | 0.34 | 0.6447 |
| DETP | 0.08 | 0.02 | 0.03 | 0.01 | 2.82 | 1.22 | 0.0201 |
| ΣDAPs | 157.51 | 20.48 | 147.83 | 21.27 | 1.07 | 0.20 | 0.7318 |
The model included farmworker status, year, farmworker by year interaction, the total number of urinary samples, and urinary creatinine. All analyses were based on 10 multiply imputed datasets. All results were back transformed to the original scale.