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Canada (161,798)
HLTC22H3 (102)
Anna Walsh (49)
Chapter 2

Chapter 2
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Department
Health Studies
Course
HLTC22H3
Professor
Anna Walsh
Semester
Winter

Description
Health Illness and Optimal Aging Biological and Psychological Perspectives Carolyn M Aldwin Diane F Gilmer Foreword by James Birren Section I Demographic Theoretical and Methodological IssuesChapter 2 Demography of Aging thy 20 century witnessed a dramatic change in population demographics y In the beginning most countries has pyramidshaped population profiles with children and young people greatly outnumbering those who were older y By the centurys end the pyramid shape had changed as the percentage of the population who were children decreased and the number of middleaged and older persons increased y The increase in number of older citizens is creating problems for developing countries that do not have adequate resources or the economic stability to support a large older adult population y The greater number ethnic diversity and increasing age of the population will complicate treatment and service delivery in the areas of health and social care as well as affecting transportation business education and even recreation Aging in the World Population Aging in the United States y Changing demographic profiles y In 1905 children and young people made up the largest segment of the population with only a small percentage of people 65 years for age and older fig21a y This created a pyramidshaped profile with a broad base of infants and children and relatively few older adults y Pyramidshaped population profiles result from high fertility rates and higher mortality rates y By 1975 the demographic profile of the country had changed y Infants and children were no longer the largest population groups y Instead the largest cohort consisted of the baby boomers who were then between the ages 10 and 30 y There was also a slight widening at the top of the pyramid as more people in their 60s and 70s survived into their 90s and 90s yOn the other hand the indentation in the middle of the 1975 pyramid characterized those between the ages of 35 and 45 resulting of the low birthrate during the Depression y Figure 21c depicts the remarkable changes that are expected to occur by 2010 y Figure 21c 64 in the United States y The bottom two thirds of the pyramid will have squared off considerably by that time y There will be comparable number of children and young and middleaged adults
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