Table 3 The incidence rate ratio (IRR) for each birth cohort of Chinese and Malay women, relative to the reference cohort (1926 – 1930), estimated from separate models for age < 50 and age ≥ 50 at diagnosis.

1891–1895

-

-

0.27 (0.15 – 0.46)

0.60 (0.08 – 4.45)

1896–1900

-

-

0.44 (0.33 – 0.57)

0.22 (0.03 – 1.63)

1901–1905

-

-

0.53 (0.44 – 0.63)

0.64 (0.29 – 1.41)

1906–1910

-

-

0.55 (0.48 – 0.64)

0.47 (0.25 – 0.89)

1911–1915

-

-

0.69 (0.61 – 0.77)

0.67 (0.43 – 1.04)

1916–1920

-

-

0.77 (0.69 – 0.86)

0.90 (0.64 – 1.27)

1921–1925

0.78 (0.59 – 1.04)

1.14 (0.54 – 2.40)

0.83 (0.75 – 0.91)

1.08 (0.80 – 1.45)

1926–1930

1.00

1.00

1.00

1.00

1931–1935

1.19 (0.98 – 1.44)

1.48 (0.85 – 2.55)

1.21 (1.10 – 1.33)

1.09 (0.81 – 1.45)

1936–1940

1.75 (1.47 – 2.09)

1.71 (1.01 – 2.90)

1.62 (1.47 – 1.79)

1.52 (1.13 – 2.04)

1941–1945

1.96 (1.65 – 2.32)

1.71 (1.06 – 3.01)

2.10 (1.90 – 2.33)

1.74 (1.25 – 2.42)

1946–1950

2.55 (2.17 – 3.00)

3.50 (2.16 – 5.65)

2.82 (2.51 – 3.17)

2.52 (1.76 – 3.60)

1951–1955

2.76 (2.35 – 3.24)

4.04 (2.53 – 6.46)

-

-

1956–1960

3.09 (2.61 – 3.65)

4.20 (2.58 – 6.83)

-

-

1961–1965

3.26 (2.70 – 3.93)

4.60 (2.74 – 7.72)

-

-

1966–1970

3.31 (2.60 – 4.21)

5.84 (3.21 – 10.60)

-

-

1971–1975

3.03 (1.96 – 4.67)

7.15 (2.85 – 17.93)