Births, Deaths and Populations Flashcards
What is a census?
A census is the simultaneous recording of a demographic data at a particular time regarding an entire population
Why is it important to gather information on a population?
Calculate rate of growth/decline
Plan for future services
Monitor unemployment, overcrowding, ageing population etc.
Name a good way of showing population size and structure
Population pyramid
What is the crude birth rate?
The number of births per 1000 population
What is the general fertility rate (GFR)?
The number of births per 1000 females aged 15-44 years
What is the Total Period Fertility Rate (TPFR)?
The average number of children that would be born to a hypothetical woman in her life
Replacement level for a population is 2.07. Define ‘replacement level’
On average a woman must give birth to 2.07 children for a population to remain constant.
Name 3 factors that affect population size
Baby booms Child care incentives Education Contraception Women working for longer
Describe how the Crude Birth Rate is used as a measure of fertility
To describe the impact of births on a population
Describe how the General Fertility Rate is used as a measure of fertility
To compare the fertility of different female populations
Describe how the Total Period Fertility Rate is used as a measure of fertility
To compare the fertility of fertile females regardless of age group structure
What is the Crude Death Rate (CDR)?
Number of deaths per 1000 population
What is the Age-Specific Death Rate (ASDR)?
Number of deaths per 1000 in an age group
What is the Standardised Mortality Ratio (SMR)?
Compares observed number of deaths with number of expected deaths if the age-sex distribution of populations were identical.
Give 2 reasons why collecting death information is important
Analyse patterns of mortality
Identify heath problems
Modify services to fit the mortality
