Table 4.
Odds ratios for childhood leukemia by levels of calculated fields and proximity to 200 + kV power lines adjusted for various characteristics associated with mobility, stratified by mobility status of cases.
| Characteristic | Adjustment | Total | Did Not Move | Moved | |
|---|---|---|---|---|---|
| Distance to 200 + kV Line < 50 m (vs. ≥600 m) | Race/Ethnicity | Not adjusteda | 1.43 (0.74–2.77) | 1.61 (0.71–3.62) | 1.31 (0.61–2.82) |
| Adjustedb | 1.37 (0.71–2.66) | 1.59 (0.70–3.57) | 1.28 (0.60–2.76) | ||
| SES | Not adjusteda | 1.52 (0.79–2.91) | 1.62 (0.72–3.64) | 1.43 (0.68–3.02) | |
| Adjustedb | 1.52 (0.79–2.92) | 1.69 (0.75–3.81) | 1.42 (0.67–3.00) | ||
| Maternal Age at Birth | Not adjusteda | 1.51 (0.79–1.61) | 1.63 (0.72–3.67) | 1.42 (0.67–3.00) | |
| Adjustedb | 1.51 (0.79–2.90) | 1.75 (0.77–3.96) | 1.43 (0.68–3.02) | ||
| Mother’s Place of Birth | Not adjusteda | 1.51 (0.79–2.91) | 1.63 (0.73–3.67) | 1.42 (0.67–3.00) | |
| Adjustedb | 1.51 (0.79–2.91) | 1.63 (0.72–3.67) | 1.42 (0.68–3.01) | ||
| Number of Siblings | Not adjusteda | 1.51 (0.79–2.91) | 1.63 (0.73–3.67) | 1.42 (0.67–3.00) | |
| Adjustedb | 1.51 (0.79–2.91) | 1.74 (0.77–3.93) | 1.41 (0.67–2.98) | ||
| Dwelling Typec | Not adjusteda | 2.82 (1.08–7.35) | 3.99 (1.09–14.57) | 2.31 (0.79–6.74) | |
| Adjustedb | 2.94 (1.12–7.72) | 4.18 (1.11–15.81) | 2.49 (0.84–7.36) | ||
| Calculated Fields ≥0.4 μT (vs. <0.1 μT) | Race/Ethnicity | Not adjusteda | 1.51 (0.70–3.22) | 1.65 (0.63–4.35) | 1.51 (0.64–3.58) |
| Adjustedb | 1.48 (0.69–3.18) | 1.72 (0.65–4.55) | 1.50 (0.63–3.59) | ||
| SES | Not adjusteda | 1.52 (0.71–3.25) | 1.66 (0.63–4.36) | 1.53 (0.64–3.62) | |
| Adjustedb | 1.52 (0.71–3.26) | 1.68 (0.64–4.42) | 1.51 (0.64–3.57) | ||
| Maternal Age at Birth | Not adjusteda | 1.52 (0.71–3.25) | 1.67 (0.63–4.41) | 1.52 (0.64–3.60) | |
| Adjustedb | 1.51 (0.71–3.23) | 1.62 (0.61–4.33) | 1.52 (0.64–3.61) | ||
| Mother’s Place of Birth | Not adjusteda | 1.52 (0.71–3.25) | 1.67 (0.63–4.41) | 1.52 (0.64–3.60) | |
| Adjustedb | 1.51 (0.71–3.23) | 1.67 (0.63–4.40) | 1.52 (0.64–3.61) | ||
| Number of Siblings | Not adjusteda | 1.52 (0.71–3.25) | 1.67 (0.63–4.41) | 1.52 (0.64–3.60) | |
| Adjustedb | 1.50 (0.70–3.21) | 1.66 (0.63–4.41) | 1.53 (0.64–3.62) | ||
| Dwelling Typec | Not adjusteda | 2.20 (0.80–6.08) | 4.45 (1.07–18.54) | 1.78 (0.54–5.81) | |
| Adjustedb | 2.17 (0.79–6.01) | 4.63 (1.11–19.29) | 1.74 (0.53–5.69) |
a
Adjusted for age and sex.
b
Adjusted for age, sex, and the variable in question.
c
Only available for small subset of site-visited residences.