Table 5.
Odds ratios for childhood leukemia by levels calculated fields exposure and proximity to 200 + kV power lines, adjusted for variables associated with mobility using propensity scores.
| Variable |
Without Dwelling |
With Dwelling |
||
|---|---|---|---|---|
| Case/Control | AOR (95% CI)a | Case/Control | AOR (95% CI)b | |
| Distance (m) | ||||
| ≥ 600 | 4,318/4,244 | 1.00 (reference) | 33/43 | 1.00 (reference) |
| 100- < 200 | 51/66 | 0.76 (0.67–0.87) | 17/15 | 1.48 (1.05–2.07) |
| 50- < 100 | 27/27 | 0.98 (0.81–1.19) | 17/18 | 1.23 (0.89–1.71) |
| < 50 | 22/15 | 1.44 (1.14–1.82) | 16/8 | 2.61 (1.76–3.86) |
| Calculated Fields (μT) | ||||
| < 0.1 | 4,604/4,533 | 1.00 (reference) | 47/50 | 1.00 (reference) |
| 0.1- < 0.4 | 37/40 | 0.91 (0.70–1.18) | 24/29 | 0.88 (0.60–1.30) |
| ≥0.4 | 17/11 | 1.52 (0.98–2.36) | 13/7 | 1.98 (1.11–3.52) |
a
Adjusted for age of child, sex, race/ethnicity, SES, maternal age at birth, mother’s place of birth, and number of siblings.
b
Adjusted for age of child, sex, race/ethnicity, SES, maternal age at birth, mother’s place of birth, number of siblings, and dwelling type.