Table 5.
Determinants of manganese dust loadings (μg/m2) from mixed-effects model using samples collected at prenatal and postnatal visits (n=465).
| Predictor Variable | % Change (95% CI) | p-value | Partial R2 |
|---|---|---|---|
| Housekeeping (Poor/average vs. excellent) | 144 (85, 222) | <0.0001 | 8.1% |
| Residence in South County | 278 (143, 489) | <0.0001 | 7.5% |
| Antioch Loam soil type (yes vs. no) | 141 (61, 262) | <0.0001 | 5.4% |
| Farm worker in the home | 13 (3, 23) | 0.007 | 1.4% |
| Wind weighted Agricultural Mn Use 3000 m, 4 weeks (per IQR =37 kg) | 26 (6, 50) | 0.009 | 1.4% |
| Doormat used (yes vs. no) | 24 (4, 48) | 0.02 | 1.3% |
| Overall model | <0.0001 | 27.0% |
*
Adjusted for maternal education, room and surface sampled.