Animal exposed occupations; frequencies and odds ratios (95% CIs) for association with non-Hodgkin’s lymphoma, Hodgkin’s disease, multiple myeloma, and leukaemia*
| Controls (n = 896480) | Non-Hodgkin’s lymphoma (n = 71600) | Hodgkin’s disease (n = 5366) | Multiple myeloma (n = 35340) | Leukaemia (n = 67570) | |||||
|---|---|---|---|---|---|---|---|---|---|
| % | % | OR (95% CI) | % | OR (95% CI) | % | OR (95% CI) | % | OR (95% CI) | |
| *Odds ratios adjusted for age, sex, race, geographic region of occurrence, and socioeconomic status. | |||||||||
| †Non-farming occupations with exposure to animals consist of veterinarians, biological and life scientists, and animal caretakers, except farm. | |||||||||
| ‡Non-farming animal exposed and farming animal exposed occupations were modelled together to calculate overall ORs, using all other occupations as the referent. | |||||||||
| §Specific non-farming animal-exposed occupations were modelled together with farming animal exposed occupations to calculate ORs for each occupation, using all other occupations as the referent. | |||||||||
| All occupations without animal exposure | 95.57 | 96.08 | 1.0 (ref.) | 96.87 | 1.0 (ref.) | 95.29 | 1.0 (ref.) | 95.06 | 1.0 (ref.) |
| Non-farming occupations with animal exposure†‡ | 0.10 | 0.11 | 1.11 (0.89–1.40) | 0.15 | 0.99 (0.49–1.99) | 0.12 | 1.33 (0.98–1.81) | 0.13 | 1.22 (0.98–1.52) |
| Veterinarians§ | 0.02 | 0.02 | 0.80 (0.47–1.36) | 0.06 | 1.99 (0.63–6.35) | 0.04 | 1.96 (1.15–3.34) | 0.04 | 1.34 (0.88–2.07) |
| Biological and life scientists§ | 0.02 | 0.03 | 1.01 (0.63–1.63) | 0.02 | 0.47 (0.07–3.42) | 0.03 | 1.35 (0.71–2.58) | 0.03 | 1.14 (0.72–1.82) |
| Animal caretakers, except farm§ | 0.02 | 0.02 | 1.27 (0.71–2.29) | 0.04 | 1.65 (0.40–6.74) | 0.01 | 1.05 (0.43–2.58) | 0.02 | 1.62 (0.95–2.75) |
| Supervisors, related agricultural occupations§ | 0.04 | 0.05 | 1.34 (0.95–1.90) | 0.04 | 0.61 (0.15–2.45) | 0.04 | 1.04 (0.60–1.81) | 0.04 | 1.05 (0.71–1.54) |
| Farming occupations with animal exposure‡ | 4.33 | 3.81 | 1.25 (1.19–1.31) | 2.98 | 1.22 (1.03–1.47) | 4.58 | 1.24 (1.17–1.32) | 4.81 | 1.34 (1.28–1.40) |