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dc.contributor.authorAgree, Emily M.
dc.contributor.authorFreedman, Vicki A.
dc.date.accessioned2019-01-10T17:18:14Z
dc.date.available2019-01-10T17:18:14Z
dc.date.issued1998-08
dc.identifier.urihttp://jhir.library.jhu.edu/handle/1774.2/59928
dc.description.abstractThis analysis examines four theories about the relationships between mortality, morbidity, and disability in old age in the US and discusses the evidence. The theories include the pandemic of Chronic Diseases, Compression of Morbidity, Life Span Expansion, and Dynamic Equilibrium. Chronic Diseases theory (Gruenberg) posits that the age at onset of chronic diseases remains the same, but the number of years spent morbid or disabled will expand with increases in longevity. Compression of Morbidity theory (Fries) posits that the age at onset of chronic diseases will increase and more deaths will cluster around the maximum average life span. Life Span Expansion theory (Walford) posits that the onset of morbidity would shift to later ages but the years lived with morbidity and disability would remain unchanged. The Dynamic Equilibrium theory (Manton) assumes that life expectancy is increased through postponement of disease onset, reductions in severity of disease and speed of progression, and improved techniques for clinical management. All three curves for morbidity, mortality, and disability will increase, and the relationship between the curves will remain unknown. Evidence indicates that there have been increases in active and disabled life expectancy, the time spent in an active state, and the share of life expectancy due to active life expectancy. The data support Manton's Dynamic Equilibrium theory. Doctors and medical staff have a large role to play in determining the direction of changes in the health status of the elderly and in recovery-rehabilitation. The elderly's health situation will become even more diverse.en_US
dc.description.sponsorshipPreparation of the chapter was supported by the Hopkins Center for Demography of Aging (Grant #P20AG12844), the Hopkins Population Center (Grant #P30HD06268) and the RAND Center for the Study of Aging (Grant #P20AG12815).en_US
dc.publisherHopkins Population Centeren_US
dc.relation.ispartofseriesHopkins Population Center Papers on Population;WP98-05
dc.subjectTheoretical Studiesen_US
dc.subjectSurveysen_US
dc.subjectTheoretical Modelsen_US
dc.subjectOlder Adultsen_US
dc.subjectHealthen_US
dc.subjectLife Expectancyen_US
dc.subjectMorbidityen_US
dc.subjectMortalityen_US
dc.subjectDisabled Persons and Disabilitiesen_US
dc.subjectDeveloped Countriesen_US
dc.titleImplications of Population Aging for Geriatric Healthen_US
dc.typeWorking Paperen_US


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