title: Alternative models for the heterogeneity of mortality risks among the aged.
abstract: The authors examine how sensitive the estimates of heterogeneity in the mortality risks in a population are to the choices of two types of function, "one describing the age-specific rate of increase of mortality risks for individuals and the other describing the distribution of mortality risks across individuals."  U.S. data from published Medicare mortality rates for the period 1968-1978 are used to analyze total mortality among the aged.  "In addition, national vital statistics data for the period 1950-1977 were used to analyze adult lung cancer mortality.  For these data, the estimates of structural parameters were less sensitive to reasonable choices of the heterogeneity distribution (gamma vs. inverse Gaussian) than to reasonable choices of the hazard rate function (Gompertz vs. Weibull)."
authors.forename: K G
authors.initials: KG
authors.lastname: Manton
authors.forename: E
authors.initials: E
authors.lastname: Stallard
authors.forename: J W
authors.initials: JW
authors.lastname: Vaupel
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000569:Americas; D002423:Cause of Death; D003710:Demography; D019049:Developed Countries; D003906:Developing Countries; D004194:Disease; D008962:Models, Theoretical; D009026:Mortality; D009369:Neoplasms; D009656:North America; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D012106:Research; D014481:United States
keywords: Adult; Age Factors; Age Specific Death Rate; Aged; Americas; Cancer; Causes Of Death; Death Rate; Demographic Analysis; Demographic Factors; Developed Countries; Developing Countries; Differential Mortality; Diseases; Heterogeneity; Mathematical Model; Models, Theoretical; Mortality; Neoplasms; North America; Northern America; Population; Population Characteristics; Population Dynamics; Research Methodology; United States