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Population

Population. Death rate By: Akeel Guy and Hudon Jack . D efinition. Death/Mortality Rate : This is the ratio of total deaths to total population in a specific community or area over a specified period of time. . How it is measured?.

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Population

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  1. Population Death rate By: Akeel Guy and Hudon Jack

  2. Definition Death/Mortality Rate : This is the ratio of total deaths to total population in a specific community or area over a specified period of time.

  3. How it is measured? • Death/mortality rate is expressed in units of deaths per 1000 individuals per year. • Thus, a rate of 9.5 in a population of a 100,000 would mean 950 deaths per year, in that entire population.

  4. Factors Influencing Death Rate There are many factors that influences death rate, Some includes: • Birth rate - this can be positive or negative; negative because when birth rates decreases, the death rates increases unless it’s a live birth, its said to be positive. • Availability of health care- if there aren’t enough or proper health systems in a country this will increase death rates and visa versa if there are proper health care available this will prevent increasing death rates.

  5. Factors influencing death rate • Diseases- if there is more diseases, this would increases death rate and the lower the diseases the lower the death rate will be.

  6. Case study

  7. Case study • Much of southern Africa continues to face severe food shortages, largely the result of one of the worst droughts in a decade. Recent rainfall has been erratic and insufficient at best, and destructive at worst. Malawi and Mozambique were among the hardest hit by Tropical Storm Delfina -- bridges, roads and railways were damaged, leaving several thousand people cut off from the aid they so desperately need. The people most affected by the storm had their homes destroyed and lost any crops they had managed to grow. Hundreds of thousands of families throughout the region can't grow enough food to survive. Farmers have less to sell in the markets, and the price of what is available is out of reach for most poor families. Even the game and wild fruits that communities rely on in times of trouble have been depleted. Many families have been forced to sell their livestock and other possessions to buy food. But this is only a temporary solution. Severe hunger -- even starvation -- threatens millions, particularly among the most vulnerable: children, the elderly, and pregnant and nursing women.

  8. Sub topics under death/mortality rate • Crude death rate- this is the total number of deaths per year per 1000 people. • Maternal morality- the number of maternal deaths per 100,000 live births in same time period. • Perinatal morality rate - the sum of neonatal deaths and fetal deaths (stillbirths) per 1000 births.

  9. Infant morality rate, the number of deaths of children less than 1 year old per 1000 live births. • Age-specific morality rate / (ASMR) - refers to the total number of deaths per year per 1000 people of a given age (e.g. age 76 last birthday). • Mobidity rate – this refers to the number of individuals in poor health during a given time period(prevalence rate) or the number of newly appearing cases of diseases per unit of time(incidence rate)

  10. References • (www.about.com) • (http://www.jamessamuel.co.nz

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