|
|
|
 |
|
|
|
II. Regional Variations of Demographic Transitions
|
|
| | Narration
Web Sites
Narration
This is an edited version of an essay by Martha Sharma, of the Cathedral School in Washington, D.C. For the complete article, see the Journal of Geography, May-August 2000, Vol. 99, No. 3/4.
While communicable diseases and preventable health conditions have been held at bay, noncommunicable diseases and degenerative conditions associated with aging have gained a foothold. For example, in more developed countries, the leading causes of death are cancer and heart disease, accounting for almost 60 percent of deaths in the United States. By contrast, in less developed countries, the main causes of mortality are HIV/AIDS, tuberculosis, and pregnancy-related conditions. In Africa especially, the spread of HIV/AIDS has had a devastating impact on those countries most affected. It has been estimated, for example, that in Botswana one person in every four is infected with this deadly disease, and life expectancy is projected to fall to only 41 years by 2005, 29 years lower than projected without the incidence of HIV/AIDS.
As with other demographic measures, mortality and life expectancy also vary according to socioeconomic status, race, and ethnicity. For example, death rates are higher among those with lower incomes and among those with lower levels of educational attainment. In the United States, life expectancies of African Americans and Native Americans fall several years below that of the general population. However, life expectancies of Hispanics and Asian Americans are respectively the same as and higher than the general population.
Web Sites
To view the following Web sites, go to "See also," below.
The Teachers' Corner contains links to suggested Web sites. The College Board neither endorses, controls the content of, nor reviews the external Web sites included here. Please note that following links to external Web sites will open a new browser window. If you discover a link that does not work, please let us know by sending an e-mail to apctechsupport@collegeboard.org.
GeoSim Project
This Virginia Tech site provides simulation software for several aspects of geography. The IntlPop program is an excellent easy-to-run program that projects population growth by country and allows manipulation of variables. Data used in the simulation may be slightly dated.
Population Pyramids: Age-Sex Pyramids from About.com
Great discussion with pyramid examples of classic three types of growth, and links to other sites.
Population Pyramid: What Is It?
Very basic introduction to population pyramids.
Population and Age-at-Death Pyramids
Two types of pyramids with brief explanations.
Population Pyramid: U.S. 1950-2050
[Sub-head Text B5:] Single animated population pyramid.
Population Pyramids from IDB
This super site from the U.S. Census Bureau International Data Base creates population pyramids before your eyes, using countries, years, and formats that you select.
|
|
|
|
|
|
Course Home Pages