Table 4.
Results from partitioning modeling of chlorpyrifos concentrations, explaining 79% of total variability, measured from June 2010 to October 2011, ISA study, Matina County, Costa.
| Group | Schools | Mean (95% CI) | Mean difference compared with low group |
|---|---|---|---|
| Low | Corina, San Juan | 3.5 (0.7–6.2) | .. |
| Moderate | Boston, Larga Distancia, Almendros | 11.8 (9.6–14.1) | 8.3 (3.6–13.1) |
| High | 4-Millas, la Maravilla, Saborio, Zent, Santa María | 18.8 (17.1–20.6) | 15.4 (11.0–19.7) |
| Very high | Barmouth, Venecia | 26.0 (23.2–28.8) | 22.5 (17.3–27.7) |