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Table 2 Goodness-of-fit measures for APC analyses of breast cancer in Singapore, 1968–2002, stratified by age at diagnosis (Age < 50, Age ≥ 50) and ethnicity.

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

Population Model* Age<50 Age ≥ 50
   Deviance df p AIC Deviance df p AIC
Chinese women Age 641.30 30 <0.001 876.98 892.80 36 <0.001 1181.8
Pre: 6296 Age + drift 85.65 29 <0.001 323.32 86.65 35 <0.001 377.62
Post: 6707 Age + period 68.52 24 <0.001 316.19 57.17 30 0.002 358.15
  Age + cohort 29.71 20 0.07 285.38 31.07 25 0.19 342.05
  Age + period + cohort 22.61 15 0.09 288.28 22.84 20 0.30 343.82
Malay women Age 183.09 30 <0.001 352.17 88.79 36 <0.001 268.80
Pre: 885 Age + drift 43.11 29 0.04 214.19 39.84 35 0.26 221.86
Post: 628 Age + period 38.05 24 0.03 219.13 37.28 30 0.17 229.29
  Age + cohort 25.98 20 0.17 215.06 30.46 25 0.21 232.47
  Age + period + cohort 22.99 15 0.08 222.07 26.33 20 0.16 238.35
Indian women Age 37.64 30 0.16 170.41 40.62 36 0.27 199.67
Pre: 335 Age + drift 30.60 29 0.38 165.38 22.93 35 0.94 183.98
Post: 418 Age + period 29.41 24 0.21 174.18 21.01 30 0.89 192.06
  Age + cohort 13.99 20 0.83 166.76 11.80 25 0.99 192.85
  Age + period + cohort 13.34 15 0.58 176.12 9.96 20 0.97 201.01
  1. In models for women age below 50, reference groups are: age group 25 – 29; and period 1968 – 1972 and cohort 1926 – 1930 wherever applicable.
  2. In models for women age 50 and above, reference groups are: age group 50 – 54; and period 1968 – 1972 and cohort 1926 – 1930 wherever applicable.
  3. Number of ethnic specific breast cancer cases among women below age 50.
  4. Number of ethnic specific breast cancer cases among women age 50 and above
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