Table 6.
Hazard ratios (HR) and 95% confidence intervals (CI) for selected cancers among male and female livestock farmers and farm workers in CanCHEC (1991–2010)
| Cancer Site (ICD-O-3) | Men | Women | ||||
|---|---|---|---|---|---|---|
| Cases | HR | (95% CI)a | Cases | HR | (95% CI)a | |
| Any cancerb | 240 | 0.94 | (0.83–1.07) | 160 | 0.90 | (0.77–1.05) |
| Prostate (C61.9) | 90 | 1.26 | (1.03–1.55) | - | - | - |
| Breast (C50) | 0 | - | - | 45 | 0.76 | (0.57–1.02) |
| Lung (C34) | 30 | 0.69 | (0.48–0.98) | 20 | 0.61 | (0.37–0.99) |
| Colon (C18, C26.0) | 20 | 0.97 | (0.63–1.49) | 20 | 1.35 | (0.87–2.09) |
| Rectum (C19.9, C20.9) | 10 | 0.93 | (0.54–1.60) | 5 | 0.86 | (0.36–2.06) |
| Non-Hodgkin Lymphomac | 15 | 0.89 | (0.54–1.45) | 5 | 0.72 | (0.33–1.61) |
| Melanoma (C44) | 15 | 1.44 | (0.82–2.53) | 5 | 1.11 | (0.53–2.33) |
| Thyroid (C73.9) | 10 | 3.01 | (1.35–6.73) | 10 | 1.28 | (0.57–2.85) |
| Oral (C00-C14) | 10 | 1.16 | (0.62–2.15) | 5 | 2.70 | (1.28–5.68) |
| Lip (C00.0-C00.9) | 5 | 2.91 | (1.08–7.80) | <5 | - | - |
| Stomach (C16) | 10 | 1.22 | (0.63–2.35) | <5 | - | - |
| Bladder (C67) | 10 | 0.72 | (0.40–1.31) | <5 | - | - |
| Kidney (C64.9) | 5 | 0.57 | (0.26–1.27) | <5 | - | - |
| Leukemiac | 5 | 0.82 | (0.37–1.83) | <5 | - | - |
| Pancreas (C25) | <5 | - | - | 5 | 1.14 | (0.51–2.54) |
| Cervix (C53) | - | - | - | 5 | 1.55 | (0.70–3.46) |
| Larynx (C32) | 5 | 1.46 | (0.61–3.52) | 0 | - | - |
| Multiple Myelomac | <5 | - | - | <5 | - | - |
| Esophagus (C15) | <5 | - | - | <5 | - | - |
| Liver (C22.0, C22.1) | <5 | - | - | <5 | - | - |
| Brain (C70-C72) | <5 | - | - | <5 | - | - |
| Nasal (C30) | <5 | - | - | 0 | - | - |
| Bone (C40, C41) | <5 | - | - | 0 | - | - |
| Hodgkin Lymphomac | <5 | - | - | 0 | - | - |
| Ovary (C56.9) | - | - | - | <5 | - | - |
| Testis (C62) | 0 | - | - | - | - | - |
| Mesotheliomac | 0 | - | - | 0 | - | - |
Note: case counts below 5 have been suppressed and all counts have been randomly rounded to base 5 in accordance with Statistics Canada disclosure rules
aAdjusted for age at baseline (age group categories), province of residence at baseline, and education level at baseline
bIncident primary cancers excluding non-melanoma skin cancer
cCancers defined using ICD-O-3 Histology codes: Mesothelioma (9050–9055), Hodgkin lymphoma (9650–9667); non-Hodgkin lymphoma (9590–9596,9670–9719, 9727–9729, 9823, 9827); Multiple myeloma (9731,9732,9734); Leukemia (9733, 9742, 9800–9801, 9805, 9820, 9826, 9831–9837, 9840, 9860–9861, 9863, 9866–9867, 9870–9876,9891,9895–9897,9910, 9920, 9930–9931, 9940, 9945–9946, 9948, 9963–9964, 9823, 9827)