Table 4.
Parameter estimates, standard error (SE) estimates, 95% confidence intervals (CIs), and factors for covariate of interest resulting from analyses of the urine dataset.
| Pesticide | Method | Quantile | Estimate | SE | 95% CI | Factora |
|---|---|---|---|---|---|---|
| Chlorpyrifos | Substitution | 0.16 | 0.10 | −0.03 – 0.35 | 1.18 | |
| (0.43b) | MLE | 0.16 | 0.09 | −0.03 – 0.35 | 1.17 | |
| (0c) | Quantile | 25th | 0.10 | 0.09 | −0.09 – 0.29 | 1.10 |
| 50th | 0.09 | 0.08 | −0.07 – 0.25 | 1.10 | ||
| 75th | 0.14 | 0.10 | −0.06 – 0.33 | 1.14 | ||
| Metolachlor | Substitution | 0.39 | 0.23 | −0.06 – 0.85 | 1.48 | |
| (37.45b) | MLE | 0.43 | 0.29 | −0.14 – 1.01 | 1.54 | |
| (41.21c) | Quantiled | 50th | 0.49 | 0.36 | −0.24 – 1.22 | 1.63 |
| 75th | 0.39 | 0.25 | −0.11 – 0.88 | 1.47 | ||
| Glyphosate | Substitution | −0.24 | 0.16 | −0.55 – 0.07 | 0.79 | |
| (18.72b) | MLE | −0.24 | 0.14 | −0.52 – 0.04 | 0.79 | |
| (12.09c) | Quantile | 25th | −0.09 | 0.21 | −0.52 – 0.34 | 0.92 |
| 50th | −0.05 | 0.16 | −0.37 – 0.28 | 0.95 | ||
| 75th | −0.14 | 0.13 | −0.39 – 0.12 | 0.87 |
Exponent of the estimate.
Censoring proportions for farm household.
Censoring proportions for non-farm household.
Result of 25th quantile level for metolachlor not presented because the censoring proportions (37.45% and 41.21%) are greater than 25%. Any quantile levels larger than or equal to 42th can be calculated (see the Figure 2).