Table 2.
Odds ratios (95% confidence intervals) for categories of three exposure metrics by site of cancer in children aged 0-4
| Exposure category* | Distance from nearest base station (m) | Total power output (kW) | Modelled power density (dBm) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cases | Unadjusted | Adjusted† | Adjusted‡ | Cases | Unadjusted | Adjusted† | Adjusted‡ | Cases | Unadjusted | Adjusted† | Adjusted‡ | |||
| All cancers | ||||||||||||||
| Lowest | 484 | 1.00 | 1.00 | 1.00 | 808 | 1.00 | 1.00 | 1.00 | 482 | 1.00 | 1.00 | 1.00 | ||
| Intermediate | 448 | 0.91 (0.79 to 1.05) | 0.92 (0.80 to 1.07) | 0.93 (0.80 to 1.08) | 298 | 1.00 (0.86 to 1.16) | 1.01 (0.87 to 1.17) | 1.01 (0.87 to 1.18) | 456 | 0.97 (0.84 to 1.12) | 1.00 (0.86 to 1.16) | 1.01 (0.87 to 1.18) | ||
| Highest | 465 | 0.95 (0.82 to 1.10) | 0.98 (0.84 to 1.14) | 1.00 (0.85 to 1.17) | 291 | 0.97 (0.83 to 1.13) | 1.00 (0.8 to 1.17) | 1.03 (0.87 to 1.21) | 459 | 0.98 (0.85 to 1.13) | 1.00 (0.86 to 1.17) | 1.02 (0.88 to 1.20) | ||
| P (trend) | — | 0.39 | 0. 64 | 0.85 | — | 0.68 | 0.98 | 0.75 | — | 0.70 | 0.99 | 0.79 | ||
| Brain and central nervous system | ||||||||||||||
| Lowest | 85 | 1.00 | 1.00 | 1.00 | 150 | 1.00 | 1.00 | 1.00 | 93 | 1.00 | 1.00 | 1.00 | ||
| Intermediate | 85 | 0.93 (0.67 to 1.29) | 0.94 (0.67 to 1.31) | 0.95 (0.67 to 1.34) | 56 | 1.03 (0.73 to 1.45) | 1.03 (0.72 to 1.46) | 1.02 (0.72 to 1.46) | 80 | 0.99 (0.71 to 1.37) | 1.00 (0.71 to 1.40) | 0.97 (0.69 to 1.37) | ||
| Highest | 81 | 0.93 (0.66 to 1.31) | 0.94 (0.65 to 1.36) | 0.95 (0.65 to 1.38) | 45 | 0.84 (0.58 to 1.21) | 0.84 (0.56 to 1.27) | 0.83 (0.54 to 1.25) | 78 | 0.78 (0.55 to 1.12) | 0.77 (0.53 to 1.12) | 0.76 (0.51 to 1.12) | ||
| P (trend) | — | 0.64 | 0.73 | 0.75 | — | 0.34 | 0.41 | 0.36 | — | 0.35 | 0.39 | 0.33 | ||
| Leukaemia and non-Hodgkin’s lymphoma | ||||||||||||||
| Lowest | 182 | 1.00 | 1.00 | 1.00 | 305 | 1.00 | 1.00 | 1.00 | 179 | 1.00 | 1.00 | 1.00 | ||
| Intermediate | 167 | 0.94 (0.75 to 1.19) | 0.96 (0.76 to 1.22) | 0.99 (0.78 to 1.27) | 112 | 1.04 (0.82 to 1.33) | 1.05 (0.82 to 1.34) | 1.08 (0.84 to 1.38) | 179 | 1.07 (0.85 to 1.35) | 1.11 (0.87 to 1.41) | 1.16 (0.90 to 1.48) | ||
| Highest | 178 | 0.98 (0.78 to 1.24) | 1.00 (0.78 to 1.28) | 1.05 (0.81 to 1.35) | 110 | 1.02 (0.80 to 1.31) | 1.04 (0.80 to 1.35) | 1.08 (0.8 to 1.42) | 169 | 0.98 (0.77 to 1.25) | 0.99 (0.77 to 1.28) | 1.03 (0.79 to 1.34) | ||
| P (trend) | — | 0.82 | 0.95 | 0.75 | — | 0.87 | 0.80 | 0.58 | — | 0.88 | 0.74 | 0.51 | ||
*For distance (m): lowest= ≥1071.8, intermediate=612.1-1071.7, highest=0-612.0; for total power output (kW): lowest= 0, intermediate= 0.001-4.742, highest=≥4.743; for modelled power density (dBm): lowest= −70-−26.4659, intermediate= −26.4658-−17.6966; highest= ≥−17.6965 (equivalent to lowest= 0-0.002256, intermediate=0.002257-0.016996, highest= ≥0.016997 in mW/m2).
†Percentage of population with education to degree level or higher and Carstairs deprivation score.
‡Percentage of population with education to degree level or higher, Carstairs deprivation score, population density, and population mixing.