Risk of non-Hodgkin's lymphoma by time (%) spent above selected bin values of magnetic field exposures
| Time (%) spent above various magnetic field bin levels8-150 | Exposure time window | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Career exposure | 10 y Before diagnosis | 20 y Before diagnosis | |||||||||
| Cases | Controls | OR (95% CI) | Cases | Controls | OR (95% CI) | Cases | Controls | OR (95% CI) | |||
| Bin 6 (0.2 μT)8-150: | |||||||||||
| 0–<21.21 | 16 | 79 | 1.0 — | 16 | 56 | 1.0 | 12 | 45 | 1.0 | ||
| 21.21–<27.00 | 16 | 56 | 1.22 (0.54 to 2.74) | 5 | 25 | 0.56 (0.17 to 1.89) | 10 | 27 | 1.20 (0.38 to 3.75) | ||
| >27.00 | 19 | 68 | 1.18 (0.52 to 2.68) | 13 | 43 | 0.82 (0.29 to 2.27) | 12 | 48 | 1.12 (0.37 to 3.36) | ||
| Bin 8 (0.8 μT): | |||||||||||
| 0–<4.63 | 14 | 82 | 1.0 — | 13 | 60 | 1.0 | 13 | 49 | 1.0 | ||
| 4.63–<9.38 | 22 | 57 | 1.46 (0.64 to 3.33) | 13 | 31 | 1.83 (0.62 to 5.35) | 11 | 27 | 1.72 (0.59 to 5.03) | ||
| >9.38 | 15 | 64 | 1.05 (0.42 to 2.64) | 8 | 33 | 0.84 (0.29 to 2.46) | 10 | 44 | 0.76 (0.26 to 2.27) | ||
| Bin 10 (3.0 μT): | |||||||||||
| 0–<0.46 | 13 | 70 | 1.0 — | 16 | 65 | 1.0 | 14 | 63 | 1.0 | ||
| 0.46–<2.21 | 23 | 74 | 1.26 (0.52 to 3.04) | 10 | 32 | 1.12 (0.41 to 3.09) | 10 | 21 | 3.20 (0.96 to 10.96) | ||
| >2.21 | 15 | 59 | 0.90 (0.34 to 2.44) | 8 | 27 | 1.12 (0.37 to 3.39) | 10 | 36 | 1.09 (0.36 to 3.32) | ||
| Bin 12 (12 μT): | |||||||||||
| 0–<0.09 | 15 | 67 | 1.0 — | 15 | 63 | 1.0 | 14 | 57 | 1.0 | ||
| 0.09–<0.51 | 19 | 83 | 0.83 (0.36 to 1.91) | 11 | 41 | 1.07 (0.42 to 2.88) | 10 | 29 | 1.51 (0.50 to 4.54) | ||
| >0.51 | 17 | 53 | 1.07 (0.41 to 2.79) | 8 | 20 | 1.48 (0.47 to 4.68) | 10 | 34 | 0.97 (0.33 to 2.85) | ||
| Bin 14 (50 μT): | |||||||||||
| 0–<0.02 | 13 | 78 | 1.0 — | 16 | 63 | 1.0 | 18 | 51 | 1.0 | ||
| 0.02–<0.08 | 22 | 71 | 1.52 (0.66 to 3.48) | 9 | 40 | 1.10 (0.34 to 0.51) | 5 | 30 | 0.25 (0.06 to 1.04) | ||
| >0.08 | 16 | 54 | 1.22 (0.46 to 3.23) | 9 | 21 | 1.56 (0.47 to 5.14) | 11 | 39 | 0.57 (0.20 to 1.61) | ||
↵8-150 Categorised into tertiles according to the distribution of exposure of all controls.
8-151 ( ) represent lower edge of magnetic field for specified bins.
ORs were adjusted for total duration of employment, socioeconomic status, and exposure to 2,4,5-T and benzene.