Table 3 Sample characteristics by school district
From: A cross-sectional study of well water arsenic and child IQ in Maine schoolchildren
Characteristics | District “A” (n = 78) | District ”B” (n = 51) | District ”C” (n = 143) |
|---|---|---|---|
WAs ≥10 μg/L | 21.8% (17) | 37.3% (19) | 34.3% (49) |
HOME score | |||
≥53 | 61.5% (48) | 51.0% (26) | 40.6% (58) |
<53 | 35.9% (28) | 49.0% (25) | 40.6% (58) |
Missing 6+ items | 2.6% (2) | 0% (0) | 18.9% (27) |
Maternal education ≥ 16 years | 64.1% (50) | 33.3% (17) | 51.1% (73) |
Maternal IQ mean ± SD | 118.47 ± 8.65 | 113.25 ± 11.95 | 113.43 ± 11.96 |
Home has filtration or water treatment system | 68.0% (53) | 52.9% (27) | 47.6% (68) |