Table 5.
Median relative error percentages and prediction accuracy of supervised statistical model predictions for OH-PAH concentrations (conc.) in urine and PAH conc. in wristbands.
| PAH in Wristbands | OH-PAH in Urine | Median Relative Error Percentage for Linear Model Predictions |
Prediction Accuracy of Linear Discriminant Analysis Model |
||
|---|---|---|---|---|---|
| Using PAH Conc. to Predict OH-PAH Conc. | Using OH-PAH Conc. to Predict PAH Conc. | Using PAH Conc. to Predict OH-PAH Tertiles | Using OH-PAH Conc. to Predict PAH Tertiles | ||
| Phenanthrene (PHEN) | 2-OH- & 3-OH-PHEN | 20.8 | 27.7 | 0.47 | 0.49 |
| PHEN | 1-OH-PHEN | 33.1 | 28.4 | 0.49 | 0.49 |
| Fluorene (FLU) | 2-OH-FLU | 23.9 | 27.3 | 0.53 | 0.49 |
| Naphthalene (NAPH) | 1-OH-NAPH | 42.7 | 46.7 | 0.49 | 0.43 |
| Pyrene (PYR) | 1-OH-PYR | 33.8 | 36.7 | 0.45 | 0.48 |
| FLU | 3-OH-FLU | 31.8 | 36.3 | 0.37 | 0.36 |
| NAPH | 2-OH-NAPH | 49.2 | 50.4 | 0.35 | 0.30 |