Farming occupations by livestock and crop industries; odds ratios (95% CIs) for association with non-Hodgkin’s lymphoma, Hodgkin’s disease, multiple myeloma, and leukaemia*
| Controls (n = 885779) | Non-Hodgkin’s lymphoma (n = 70881) | Hodgkin’s disease (n = 5301) | Multiple myeloma (n = 34963) | Leukaemia (n = 66831) | |||||
|---|---|---|---|---|---|---|---|---|---|
| % | % | 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. | |||||||||
| †The two industries were modelled together to calculate overall ORs for each industry, using all other industries as the referent. | |||||||||
| ‡All occupations in the livestock and crop industries were modelled together to calculate ORs for each occupation, using all other industries as the referent. | |||||||||
| All other industries | 95.54 | 96.06 | 1.0 (ref.) | 96.93 | 1.0 (ref.) | 95.30 | 1.0 (ref.) | 95.05 | 1.0 (ref.) |
| Livestock industry† | 0.93 | 1.00 | 1.45 (1.34–1.58) | 0.64 | 1.16 (0.82–1.64) | 1.03 | 1.45 (1.29–1.62) | 1.17 | 1.52 (1.40–1.64) |
| Farmers‡ | 0.80 | 0.89 | 1.51 (1.39–1.65) | 0.58 | 1.32 (0.92–1.91) | 0.92 | 1.52 (1.35–1.71) | 1.06 | 1.60 (1.47–1.74) |
| Managers or supervisors‡ | 0.03 | 0.02 | 0.90 (0.54–1.52) | 0.04 | 1.69 (0.42–6.88) | 0.03 | 1.20 (0.64–2.27) | 0.02 | 0.88 (0.52–1.49) |
| Farm workers‡ | 0.07 | 0.06 | 1.27 (0.94–1.71) | 0 | – | 0.06 | 1.18 (0.77–1.81) | 0.07 | 1.20 (0.89–1.63) |
| Other occupations‡ | 0.03 | 0.03 | 1.07 (0.67–1.71) | 0.02 | 0.77 (0.11–5.50) | 0.02 | 0.68 (0.30–1.54) | 0.03 | 1.06 (0.66–1.71) |
| Crop industry† | 3.54 | 2.94 | 1.17 (1.11–1.23) | 2.43 | 1.21 (1.00–1.47) | 3.67 | 1.17 (1.09–1.25) | 3.78 | 1.27 (1.21–1.33) |
| Farmers‡ | 3.11 | 2.66 | 1.22 (1.15–1.29) | 2.13 | 1.29 (1.05–1.59) | 3.28 | 1.23 (1.14–1.31) | 3.44 | 1.32 (1.26–1.39) |
| Managers or supervisors‡ | 0.03 | 0.03 | 1.20 (0.79–1.81) | 0.02 | 0.79 (0.11–5.69) | 0.03 | 0.98 (0.54–1.79) | 0.04 | 1.37 (0.93–2.00) |
| Farm workers‡ | 0.28 | 0.12 | 0.65 (0.53–0.81) | 0.11 | 0.46 (0.21–1.04) | 0.25 | 0.81 (0.65–1.00) | 0.20 | 0.89 (0.75–1.06) |
| Other occupations‡ | 0.11 | 0.12 | 1.19 (0.95–1.49) | 0.17 | 1.76 (0.91–3.41) | 0.10 | 0.97 (0.69–1.36) | 0.10 | 0.94 (0.73–1.21) |