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. Author manuscript; available in PMC: 2012 Feb 1.
Published in final edited form as: N Am Actuar J. 2011;15(3):432–447. doi: 10.1080/10920277.2011.10597629

Table 2.

Comparison of Goodness-of-Fit (Bayesian Information Criterion) for Gompertz and Logistic Models of Mortality

Birth Cohort Cohort Size at Age 88 Years, Persons Bayesian Information Criterion
Gompertz Model Logistic Model

1886 111,657 594,776.2 −588,049.5
1887 114,469 625,303.0 −618,721.4
1888 128,768 −709,620.7 −712,575.5
1889 131,778 −710,087.1 −715,356.6
1890 135,393 724,731.0 −722,939.6
1891 143,138 767,138.3 −739,727.6
1892 152,058 831,555.3 −810,951.8
1893 156,189 890,022.6 −862,135.9
1894 160,835 946,219.0 −905,787.1
1895 165,294 921,650.3 −863,246.6

Note: Estimates were made in the age interval 88–106 years for 10 single-year U.S. birth cohorts and data of enhanced accuracy for individuals who applied for Social Security numbers in the Northern states (see explanation in the text). Cases when the Gompertz model fits data better than the logistic model are highlighted in bold.