Table 2

Age standardised incidence rates

Incidence per 100000 (95% CI)
MaoriNon-MaoriSRR (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)*