Table 2.
Concentrations of organophosphate pesticide urinary metabolites in study population
| Pesticide Metabolite (ng/mL) |
Unadjusted (nmol/L) |
Creatinine adjusted (nmol/g creatinine) |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LOD | Percent > LOD |
Mean | GM | Median | IQR | Max | Mean | GM | Median | IQR | Max | |
| DEP | 1.0 | 28.8 | 6.1 | 4.9 | 3.5 | 2.5 | 31.0 | 5.4 | 3.9 | 3.5 | 4.3 | 57.7 |
| DETP | 1.0 | 28.8 | 1.6 | 1.0 | 0.7 | 0.3 | 28.0 | 1.5 | 0.8 | 0.7 | 0.8 | 20.5 |
| DEDTP | 1.0 | 0.7 | 0.7 | 0.7 | 0.7 | 0.0 | 1.0 | 0.7 | 0.6 | 0.5 | 0.4 | 11.5 |
| DMP | 5.0 | 35.3 | 10.2 | 5.9 | 3.5 | 4.5 | 177.0 | 9.5 | 4.7 | 3.7 | 5.3 | 273.8 |
| DMTP | 5.0 | 64.0 | 11.1 | 4.4 | 4.0 | 5.3 | 384.0 | 10.9 | 3.5 | 2.6 | 4.1 | 594.0 |
| DMDTP | 2.5 | 18.7 | 2.4 | 1.0 | 0.7 | 0.0 | 65.0 | 2.2 | 0.8 | 0.6 | 0.7 | 43.2 |
| EDE | - | - | - | - | - | - | - | 125.4 | 81.0 | 71.2 | 79.9 | 1324.9 |
| EDM | - | - | - | - | - | - | - | 166.2 | 71.8 | 58.3 | 77.5 | 6591.1 |
| EDAP | - | - | - | - | - | - | - | 291.6 | 168.0 | 142.9 | 197.3 | 6696.8 |
• Abbreviations: LOD, limit of detection; GM, geometric mean; IQR, interquartile range; DMP, dimethyl phosphate; DMTP, dimethyl thiophosphate; DMDTP, dimethyl dithiophosphate; DEP, diethyl phosphate; DETP, diethyl thiophosphate; DEDTP, diethyl dithiophosphate; EDE, diethyl alkylphosphates; EDM, dimethyl alkylphosphate; EDAP, total dialkylphosphate.
• Metabolites were adjusted to creatinine standards of 100mg/dl.