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Table 1 Model comparison and goodness-of-fit for APC analyses of breast cancer by ethnic groups in Singapore 1968–2002 for ages 25 – 79.

From: Ethnic differences in the time trend of female breast cancer incidence: Singapore, 1968 – 2002

Population (N) Model* Deviance df p AIC
Chinese Women (13,003) Age 1534.11 66 <0.001 2058.75
  Age + drift 177.74 65 <0.001 704.38
  Age + period 168.92 60 <0.001 705.57
  Age + cohort 66.76 50 0.06 623.41
  Age + period + cohort 51.92 45 0.22 618.57
Malay Women (1,513) Age 271.88 66 <0.001 620.98
  Age + drift 87.03 65 0.04 438.13
  Age + period 80.27 60 0.04 441.36
  Age + cohort 59.38 50 0.17 440.48
  Age + period + cohort 53.77 45 0.17 444.86
Indian Women (753) Age 78.26 66 0.14 370.08
  Age + drift 54.69 65 0.82 348.52
  Age + period 53.29 60 0.72 357.11
  Age + cohort 31.44 50 0.98 355.27
  Age + period + cohort 29.30 45 0.97 363.12
  1. *Reference groups are: age group 25 – 29; and period 1968 – 1972 and cohort 1926 – 1930 wherever applicable.