Demographic Measures and Health Indicators

Questions and Answers

What is the median age in the Philippines as of 2023?

30 years

20 years

35 years

25 years (correct)

Which of the following statements correctly describes population composition?

It determines the distribution of the population by socio-demographic variables. (correct)

It focuses solely on immigration rates.

It examines the total number of deaths in a year.

It only considers the birth rate of a population.

What does the death rate measure?

The number of births per 1000 population

The number of immigrants in a country

The number of deaths per 1000 population (correct)

The overall health conditions in a region

What method does the Philippines use for population allocation during census?

De Facto Method Signup and view all the answers

Which factor is considered a push factor in emigration?

Political instability Signup and view all the answers

What is the age-dependency ratio primarily used to indicate?

Age-induced economic drain on human resources Signup and view all the answers

Which age groups are considered dependents when calculating the age-dependency ratio?

Those aged 0-14 and those aged 65 and over Signup and view all the answers

How is the sex ratio calculated?

By dividing the number of males by the number of females and multiplying by 100 Signup and view all the answers

What does a population pyramid graphically represent?

The age and sex structure of a population Signup and view all the answers

What is the typical sex ratio at birth?

105 males for every 100 females Signup and view all the answers

Study Notes

Demographic Measures

Demography: Scientific study of human populations; focuses on size, composition, and distribution of populations.
Population Size: Determined by census; significant values include:
- 1799: 1,502,574
- 1877: 5,984,727
- 2023: 117,337,368
Census: A complete count of a population in a specific location.
Population Allocation Methods:
- De Facto Method: Counts individuals present in a location.
- De Jure Method: Counts individuals based on legal residence.

Population Composition

Factors Influencing Composition:
- Birth Rate: Births per 1,000 people; influenced by fertility, societal values, policies, culture, and religion.
- Death Rate: Deaths per 1,000 people; influenced by health conditions, medical technology, and societal peace.
- Emigration: People leaving a country due to push factors.
- Immigration: People entering a country due to pull factors.

Age Composition

Median Age: 25 years in the Philippines (2023); divides population into halves.
Age-Dependency Ratio: Measures economic burden of dependents (children + elderly) on the working-age population.
- Formula: ( \frac{(0-14) + (65+)}{15-64} \times 100 )
- Composition:
  - Age Group 0-14: 39.5% (24,004,586)
  - Age Group 15-64: 57.1% (34,629,959)
  - Age Group 65+: 3.4% (2,063,445)
Sex Ratio: Number of males per 100 females; birth ratio at around 105, tends to decrease with age.
Population Pyramid: A histogram showing age and sex distribution; males on left, females on right, youngest at the bottom.

Health Indicators

Definition: Quantitative measures summarizing aspects of population health, expressed as ratios and rates.
Uses:
- Identifying disease causation and control factors.
- Identifying public health issues and resource needs.
- Allocating health resources and monitoring programs.

Common Health Indicators

Fertility Indicators:
- Crude Birth Rate (CBR): Births per 1,000 population.
- General Fertility Rate (GFR): Births per 1,000 women aged 15-44.
Mortality Indicators:
- Crude Death Rate (CDR): Deaths per 1,000 population.
- Specific Mortality Rates: Focused on subpopulations (e.g., age-specific).
- Infant Mortality Rate (IMR): Deaths under 1 year per 1,000 live births; reflects health conditions and services.
CFR (Case Fatality Rate): Proportion of cases that result in death.

Formulas

CBR: ( \frac{no. , of , livebirths}{midyear , population} \times 1000 )
GFR: ( \frac{no. , of , livebirths}{midyear , population , of , women , 15-44} \times 1000 )
CDR: ( \frac{total , deaths}{midyear , population} \times 1000 )
IMR: ( \frac{deaths , under , 1 , year}{livebirths} \times 1000 )
CFR: ( \frac{deaths , from , specific , cause}{cases , of , the , same , disease} \times 10,000 )

Data Examples

Crude Birth Rate: Calculated CBR of 19 live births per 1,000 residents with 1,782,981 registered births.
Crude Death Rate: CDR of 6 deaths per 1,000 population with 488,265 registered deaths.
Infant Mortality Rate: Key indicator of health infrastructure; higher rates signify underlying health issues.

These notes capture the essential demographic measures and health indicators mentioned, providing a clear and concise reference.

Description

This quiz explores the fundamental concepts of demographic measures and health indicators. Participants will compute and interpret various demographic metrics while understanding the benefits and limitations of health indicators. It's aimed at enhancing knowledge about population studies and health assessments.