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Original Article Population-adjusted Mean Age at Incidence (PAMA) for Comparing Incidence Patterns with Age in Different Populations.
Yoon Ok Ahn, Moo Song Lee, Weechang Kang, Chung Min Lee, Youngjo Lee
Epidemiol Health 1999;21(1):31-35
DOI: https://doi.org/
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1Department of Preventive Medicine, Seoul National UniversityCollege of Medicine.
2Department of Preventive Medicine, University of UlsanCollege of Medicine.
3Department of Statistics, Seoul National University.

Standardized incidence rates have been widely used for comparing incidence patterns between populations, adjusting for differences in demographic structure. These rates can compare overall incidence levels, but to fully understand incidence patterns, an index which links incidence with age is also needed. The authors proposed a statistical method for estimating population-adjusted mean age of incidence (PAMA), based on Poisson distribution and Fieller's theorem. The index was applied with several modifications to data relating to the incidence of breast cancer among Caucasian women living in Los Angeles.


Epidemiol Health : Epidemiology and Health