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Thomas A Glass a Harvard University School of Public
Health, Department of Health and Social Behavior, Boston, MA 02115, United States, b Rush
Institute for Healthy Aging, Rush-Presbyterian-St Luke's Medical
Center, Chicago, IL 60612, United States, c Yale University School of
Medicine, Department of Internal Medicine, Geriatrics, DC 023, New
Haven, CT 06504, United States
Correspondence to: TA Glass
tglass{at}hsph.harvard.edu
Objectives:
To examine any association between social, productive, and physical activity and 13 year survival in older people.
Design:
Prospective cohort study with annual mortality follow up. Activity and other measures were assessed by structured interviews at baseline in the participants' homes. Proportional hazards models were used to model survival from time of initial interview.
Setting:
City of New Haven, Connecticut, United States.
Participants:
2761 men and women from a random
population sample of 2812 people aged 65 and older.
Main outcome measure:
Mortality from all causes during
13 years of follow up.
Results:
All three types of activity were
independently associated with survival after age, sex, race/ethnicity,
marital status, income, body mass index, smoking, functional
disability, and history of cancer, diabetes, stroke, and myocardial
infarction were controlled for.
Conclusions:
Social and productive activities that
involve little or no enhancement of fitness lower the risk of all cause mortality as much as fitness activities do. This suggests that in
addition to increased cardiopulmonary fitness, activity may confer
survival benefits through psychosocial pathways. Social and productive
activities that require less physical exertion may complement exercise
programmes and may constitute alternative interventions for frail
elderly people.
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