mathematics

Health indicator

Health indicator is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Health indicator rather than just read about it. In short: Health indicators are quantifiable characteristics of a population which researchers use as supporting evidence for describing the health of a population. Typically, researchers will use a survey methodology to gather information about a population sample, use statistics in an attempt to generalize the information collected to the entire population, and then use the statistical analysis to make a statement about the…

Key takeaways

Health indicator belongs to mathematics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Health indicator to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Health indicator from memory before moving on to harder problems.

Reference excerpt

Health indicators are quantifiable characteristics of a population which researchers use as supporting evidence for describing the health of a population. Typically, researchers will use a survey methodology to gather information about a population sample, use statistics in an attempt to generalize the information collected to the entire population, and then use the statistical analysis to make a statement about the health of the population. Health indicators are often used by governments to guide health care policy or to make goals for improving population health.

Characteristics A health indicator which will be used internationally to describe global health should have the following characteristics:

It should be defined in such a way that it can be measured uniformly internationally. It must have statistical validity. The indicator must be data which can feasibly be collected in a reasonable amount of time. The analysis of the data must result in a recommendation on which people can make changes to improve health

Health indicator examples *This is not a comprehensive list of health indicators.

Health status Life expectancy at birth Number of years a newborn is expected to live based on current mortality trends. Infant mortality rate Number of infant deaths (children under 1 year) per 1,000 live births in a year. Neonatal mortality rate Number of newborn deaths (children under 28 days) per 1,000 births in a year. Maternal mortality ratio Number of women who die due to pregnancy or birth complications per 100,000 births in a year. Mortality from cardiovascular diseases Cancer incidence Diabetes incidence Depression incidence Disability adjusted life years (DALY) A measurement of premature death or lower quality of life due to disability. Activities of daily living (ADL) A measurement of ability to self-sustain based on ability to perform daily activities such as dressing, feeding, and grooming.

Risk factors Alcohol consumption Smoking in adults Physical exercise habits Condom use Obesity rate Asthma rate High blood pressure rate Air pollution levels Exclusive breastfeeding rate Number of mothers who only feed their infants breast milk for the first 6 months of life per a unit of measurement. Child stunting rate Number of children who have a low height for their age (more than two standard deviations below the international reference) due to poor nutrition per a unit of measurement. Child wasting rate Number of children who have a low weight for their height (more than two standard deviations below the international reference) due to poor nutrition per a unit of measurement.

Health systems Healthcare coverage Number of people with some type of health care coverage/insurance per unit of measurement. Hospital beds per capita Doctors per capita Nurses per capita Hospital readmission rates Health expenditure as percentage of GDP Percentage of a nation’s gross domestic product (GDP) used toward healthcare. People with HIV aware of their status Breast cancer screening rate Birth registration rate Number of people with a government- verified birth certificate per unit of measurement. Death registration rate Number of people with a government- verified death certificate per unit of measurement.

Applications Health indicators are commonly used to make large-scale or community health-related decisions. By describing the current health of a population, the areas that need improvement become evident, and policy-makers and health professionals can work to fill these gaps. Once interventions are put in place to try to improve the health of a population, health indicators can then be used to evaluate the success of the intervention. Additionally, health indicators can highlight health disparities in a population. Differences in health indicators among genders, races, ethnic groups, socioeconomic classes, and other groups can be used to guide policy and interventions that will bring health equity in the future. Health indicators are used by many institutions, including international organizations such as the United Nations and World Health Organization (WHO). They are also used by smaller-scale community health organizations, hospitals, and other medical and public health organizations such as the Center for Disease Control (CDC), National Institute of Health (NIH), The African Comprehensive HIV/AIDS Partnerships (ACHAP), and Global Alliance for Africa.

References

External links World Health Statistics 2012 Indicator compendium created by the World Health Organization World Health Statistics 2012 Global Health Indicators Health Indicators list of health indicators created by the European Commission HealthyPeople.gov created by the United States Department of Health and Human Services Community Health Status Indicators Archived 2013-03-18 at the Wayback Machine, a project of the Centers for Disease Control Canada, a project of Statistics Canada HealthIndicators.gov, a database of US health indicators

Worked examples

Example 1 — a first encounter with Health indicator

Start with the simplest possible case. Write down what Health indicator claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Health indicator before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Health indicator ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Health indicator

In research: Health indicator appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Health indicator in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Health indicator is common in secondary-school and first-year university syllabi. It links to neighbouring topics Biostatistics, Indicators, Medical statistics, so understanding it makes those chapters shorter.
In everyday life: Look for Health indicator outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Health indicator in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Health indicator means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Health indicator out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Health indicator in simple terms?

Why does Health indicator matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Health indicator?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Health indicator.