Table 3.
Age-standardized cancer incidence (per 100,000 person-years) among First Nations adults by cancer site and residence on-reserve, relative risk compared to non-Aboriginal adults and 95% confidence intervals, 1991–2009, Canada
| First Nations living on-reserve* | First Nations living off-reserve* | ||||||
|---|---|---|---|---|---|---|---|
| Site | NA ASR† | N ‡ | FN ASR† | RR§ (95% CI) | N ‡ | FN ASR† | RR§ (95% CI) |
| All sites | 514.3 | 3105 | 470.5 | 0.92 (0.89–0.96) | 1975 | 494.6 | 0.99 (0.95–1.04) |
| Colon and rectum | 63.9 | 500 | 76.6 | 1.20 (1.10–1.31) | 310 | 79.7 | 1.29 (1.16–1.44) |
| Female breast | 146.0 | 450 | 118.7 | 0.81 (0.74–0.89) | 340 | 128.7 | 0.90 (0.81–1.00) |
| Lung | 73.3 | 455 | 71.6 | 0.95 (0.87–1.04) | 320 | 86.6 | 1.16 (1.05–1.29) |
| Prostate | 157.3 | 345 | 127.8 | 0.75 (0.68–0.83) | 175 | 117.3 | 0.72 (0.63–0.83) |
| Kidney | 13.9 | 190 | 27.2 | 2.04 (1.78–2.33) | 90 | 22.8 | 1.63 (1.34–1.98) |
| NHL | 26.1 | 105 | 15.6 | 0.62 (0.52–0.74) | 75 | 18.4 | 0.76 (0.62–0.94) |
| Stomach | 10.8 | 90 | 13.2 | 1.29 (1.05–1.57) | 50 | 11.4 | 1.22 (0.93–1.60) |
| Cervix | 11.0 | 115 | 32.4 | 2.82 (2.35–3.38) | 50 | 20.7 | 1.69 (1.28–2.23) |
| Oral cavity and pharynx | 11.9 | 60 | 9.0 | 0.80 (0.64–1.00) | 55 | 13.0 | 1.11 (0.86–1.43) |
| Uterus | 28.4 | 80 | 19.7 | 0.75 (0.61–0.93) | 30 | 11.2 | 0.40 (0.29–0.57) |
| Pancreas | 11.6 | 65 | 9.8 | 0.87 (0.69–1.10) | 35 | 9.7 | 0.85 (0.63–1.16) |
| Ovary | 16.5 | 55 | 14.4 | 0.80 (0.61–1.04) | 35 | 13.8 | 0.79 (0.57–1.09) |
| Multiple myeloma | 6.1 | 50 | 7.7 | 1.17 (0.89–1.53) | 25 | 6.5 | 0.98 (0.66–1.45) |
| Liver | 3.7 | 40 | 6.4 | 1.58 (1.16–2.15) | 30 | 7.6 | 2.31 (1.65–3.25) |
| Thyroid | 10.3 | 30 | 5.4 | 0.45 (0.32–0.62) | 35 | 8.1 | 0.80 (0.60–1.08) |
| Bladder | 16.9 | 25 | 4.4 | 0.28 (0.20–0.38) | 35 | 9.0 | 0.61 (0.45–0.83) |
| Leukemia | 7.4 | 35 | 5.5 | 0.50 (0.38–0.67) | 25 | 5.4 | 0.71 (0.52–0.97) |
| Esophagus | 4.8 | 30 | 4.9 | 1.08 (0.79–1.49) | 20 | 5.2 | 1.33 (0.90–1.96) |
| Brain | 8.6 | 25 | 3.8 | 0.46 (0.31–0.67) | 25 | 5.6 | 0.67 (0.45–1.00) |
| Gallbladder | 1.3 | 40 | 5.6 | 3.95 (2.84–5.49) | 5 | 1.8 | 1.10 (0.49–2.45) |
| Larynx | 4.2 | 20 | 2.5 | 0.67 (0.44–1.02) | 25 | 6.3 | 1.98 (1.43–2.76) |
| Melanoma | 16.9 | 20 | 3.1 | 0.19 (0.13–0.28) | 10 | 1.8 | 0.18 (0.11–0.30) |
Abbreviations: FN ASR First Nations age-standardized incidence rate, NA ASR non-Aboriginal age-standardized incidence rate, RR relative risk, CI confidence interval, NHL non-Hodgkin lymphoma
*At the time of the census (1991)
†Age-standardized to the World Standard Population (Parkin et al 1992)
‡Number of cancers in First Nations
§Adjusting for age and sex (where applicable). Values in bold represent a statistically significant difference