Age standardised incidence rates
| Incidence per 100000 (95% CI) | |||
|---|---|---|---|
| Maori | Non-Maori | SRR (95% CI) | |
| *Significant difference p<0.05 (across: between ethnic groups in New Zealand or Whangarei; down: between Whangarei and New Zealand within each ethnic group). | |||
| CI, confidence interval; SRR, standardised rate ratio. | |||
| Gastric cancer | |||
| New Zealand (1996) | 20.5 (15.1 to 25.8) | 7.0 (6.2 to 7.8) | 3.0 (1.9 to 4.5)* |
| Whangarei (1996) | 68.3 (36.6 to 100.1) | 7.9 (4.6 to 11.1) | 8.7 (2.8 to 27.3)* |
| SRR (95% CI) | 3.3 (1.4 to 7.5)* | 1.1 (0.7 to 1.8) | |
| Colonic cancer | |||
| New Zealand (1996) | 12.5 (8.2 to 16.9) | 33.7 (32.0 to 35.4) | 0.4 (0.3 to 0.5)* |
| Whangarei (1996) | 36.0 (13.3 to 58.7) | 42.8 (35.0 to 50.6) | 0.8 (0.5 to 1.5) |
| SRR (95% CI) | 2.9 (1.02 to 8.12)* | 1.3 (1.02 to 1.56)* | |