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Part Two. Population Processes. Part Outline. 5 The Mortality Transition 6 The Fertility Transition 7 The Migration Transition. Chapter 5. The Mortality Transition. Chapter Outline. Life Span And Longevity Age And Sex Patterns Of Mortality Causes Of Death Measuring Mortality
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Part Two Population Processes
Part Outline • 5 The Mortality Transition • 6 The Fertility Transition • 7 The Migration Transition
Chapter 5 The Mortality Transition
Chapter Outline • Life Span And Longevity • Age And Sex Patterns Of Mortality • Causes Of Death • Measuring Mortality • The Mortality/Epidemiological Transition
Life Span And Longevity • Life span is the oldest age to which human beings can survive. • Longevity is the ability to resist death. • Life span is almost entirely a biological phenomenon. • Longevity has biological and social components.
Longevity:Biological Factors • No more than 35% of the variability in longevity is due to inherited characteristics: • Strength of vital organs • Predisposition to particular diseases • Metabolism rate
Longevity: Social Factors • Social and economic infrastructure: • Distribution of wealth. • Purification of water and milk. • Vaccination against diseases. • Control of rodents and pests. • Availability of food, shelter and clothing. • Whether acute care, long-term care and medical assistance are available.
Longevity: Social Factors • Lifestyle • Smoking • Drug use • Excessive alcohol use • Fatty food • Exercise
Sex and Gender Differentials in Mortality • Women live longer than men. • 1900- Women could expect to live 2 years longer than men in the U.S. • 1975-The difference had peaked at 7.8 years. • 2000 - The difference has dropped to 5.4 years, but the survival advantage of women is nearly universal among the nations of the world.
Factors in Risk of Death in Pregnancy • Lack of prenatal care that might identify problems before they become risky. • Delivering the baby somewhere besides a hospital. • Seeking an unsafe abortion.
Causes of Death • Major reasons people die: • They are killed by infectious and parasitic diseases. • They degenerate. • They are killed by products of the social and economic environment.
Accidental Deaths • 1/2 of all accidental deaths in the U.S. are attributable to motor vehicles. • Each year there are tens of thousands of lives lost in traffic accidents in Canada, the U.S., and Mexico. • Tens of thousands more are injured and face permanent disability. • The victims are disproportionately young males, and alcohol is involved in a high fraction of cases.
Suicide • About one million people each year commit suicide. • As many as 20 times that number attempt suicide. • Suicide rates rise through the teen years, peak in young adult ages, plateau in the middle years, and then rise in the older ages. • The suicide rate is considerably higher for males than for females around the world.
Homicide • Homicide rates are highest for young adult males in virtually every country for which data are available. • The homicide rate peaks at ages 15 to 24. • For white males at this age, the homicide rate in 1998 was 12 per 100,000. • Compared with 97 deaths per 100,000 for African-American males at this age.
“Real” Causes of Death • Tobacco • Caused deaths of 19% of the 2,148,000 people who died in the U.S. in 1990. • Tobacco is linked to: • cancer deaths • cardiovascular deaths • chronic lung disease • low birth weight • deaths from burning cigarettes
“Real” Causes of Death • Diet and activity patterns • Accounts for 300,000 deaths annually - 14% of the total in 1990. • Includes high consumption of cholesterol, sodium, and animal fat and a sedentary lifestyle. • Contribute to heart disease and stroke, cancers, and diabetes mellitus.
“Real” Causes of Death • Alcohol Misuse • Contributes to death from: • Cirrhosis • Vehicle accidents • Injuries in the home • Drowning • Fire fatalities
Premodern Mortality • For most of human history, life expectancy was 20 to 30 years. • About 2/3 of babies survived to their first birthday, and about 1/2 were still alive at age five. • Around 10% of people made it to age 65.
Life Expectancy, U.S., 2001 ** Important note: the Male/Female stats are incorrectly reversed in the text. The stats above are correctly applied. (The text will be corrected in the next reprint.)
Life Expectancy, U.S., 2001 ** Important note: the Male/Female stats are incorrectly reversed in the text. The stats above are correctly applied. (The text will be corrected in the next reprint.)