Quality-Adjusted Life Year (QALY)
Definition: A Quality-Adjusted Life Year (QALY) is a generic measure of disease burden, combining both the quantity and quality of…
Read DefinitionPublic Health Glossary
Decode complex terminology and master the language of public health.
Quantification
Definition: Quantification in public health is the systematic process of measuring, counting, and assigning numerical values to health-related phenomena, characteristics,…
Read DefinitionQuantitative Research
Definition: Quantitative research in public health is a systematic empirical investigation that involves collecting and analyzing numerical data to identify…
Read DefinitionQuarantine
The restriction on the movement of people, animals and goods which is intended to prevent the spread of disease or pests.
Read DefinitionQuasi-Experimental Design
Definition: A quasi-experimental design is a research methodology used to estimate the causal impact of an intervention on a target…
Read DefinitionQuestionnaire
Definition: A questionnaire is a systematic set of questions designed to collect standardized information from a group of respondents, serving…
Read DefinitionQuorum Sensing
Definition: Quorum sensing (QS) is a system of bacterial communication that enables coordinated gene expression based on population density, allowing…
Read DefinitionRandomized Controlled Trial
Definition: A Randomized Controlled Trial (RCT) is an experimental study design where participants are randomly assigned to either an intervention…
Read DefinitionRegistry
Definition: A registry is an organized system for collecting, storing, and retrieving standardized data on individuals who share a common…
Read DefinitionRelative Risk
Definition: Relative Risk (RR) is a measure of association that quantifies how many times more likely an exposed group is…
Read DefinitionReproduction Number (R0)
Definition: The basic reproduction number (R0) is the average number of secondary infections produced by one infected individual in a…
Read DefinitionReproductive Health
Definition: Reproductive health is a state of complete physical, mental, and social well-being, and not merely the absence of disease…
Read DefinitionResilience
Definition: Resilience in public health refers to the capacity of individuals, communities, and systems to anticipate, prepare for, respond to,…
Read DefinitionRetrospective Study
Definition: A retrospective study is an epidemiological research design that investigates past events or data to identify potential causes, risk…
Read DefinitionRisk Assessment
Definition: Risk assessment is the systematic process of identifying potential hazards, evaluating the likelihood and severity of their adverse health…
Read DefinitionRisk Factor
Definition: An attribute, characteristic, or exposure that increases the probability of an individual developing a disease, injury, or other adverse…
Read DefinitionRural Health
Definition: Rural Health is a specialized field within public health dedicated to understanding and addressing the distinct health needs, challenges,…
Read DefinitionSampling
Definition: Sampling is the process of selecting a subset of individuals, items, or units from a larger population to gather…
Read DefinitionSanitation
Definition: Sanitation refers to public health conditions related to clean drinking water and adequate treatment and disposal of human excreta,…
Read DefinitionScreening
Definition: Screening in public health refers to the systematic application of a test or procedure to identify apparently healthy individuals…
Read DefinitionSecondary Prevention
Definition: Secondary prevention focuses on the early detection and prompt intervention for existing health problems or diseases, often in their…
Read DefinitionSensitivity
Definition: Sensitivity is a statistical measure quantifying a diagnostic or screening test's ability to correctly identify individuals who truly have…
Read DefinitionSocial Determinants of Health (SDH)
The non-medical factors that influence health outcomes, including the conditions in which people are born, grow, work, live, and age.
Read DefinitionSocioeconomic Status (SES)
Definition: Socioeconomic Status (SES) is a composite measure reflecting an individual's, family's, or group's relative social and economic position, typically…
Read DefinitionSpecificity
Definition: Specificity is a measure of a diagnostic or screening test's ability to correctly identify individuals who *do not* have…
Read DefinitionStakeholder
Definition: A stakeholder in public health refers to any individual, group, or organization that is affected by a public health…
Read DefinitionStigma
Definition: Stigma, in public health, refers to negative attitudes, beliefs, or discrimination directed towards individuals or groups based on certain…
Read DefinitionStratification
Definition: Stratification in public health is the process of dividing a population or data set into distinct subgroups (strata) based…
Read DefinitionSurveillance
The continuous, systematic collection, analysis and interpretation of health-related data needed for the planning, implementation, and evaluation of public health practice.
Read DefinitionSustainable Development Goals (SDGs)
A collection of 17 interlinked global goals designed to be a "blueprint to achieve a better and more sustainable future for all".
View Interactive ChartTarget Population
Definition: A specific group of individuals identified as the primary focus for a public health intervention, program, or policy. This…
Read DefinitionTelehealth
Definition: Telehealth refers to the use of electronic information and telecommunication technologies to support long-distance clinical healthcare, patient and professional…
Read DefinitionTertiary Prevention
Definition: Tertiary prevention focuses on minimizing the long-term impact of an existing disease or disability, preventing its progression or recurrence,…
Read DefinitionTest Sensitivity
Definition: Test sensitivity is a measure of a diagnostic test's ability to correctly identify individuals who truly have a particular…
Read DefinitionThreshold
Definition: In public health, a threshold refers to a specific level, point, or concentration of a factor (e.g., exposure, disease…
Read DefinitionTime Series Analysis
Definition: Time Series Analysis is a statistical technique for analyzing data points collected, recorded, or observed over successive time intervals.…
Read DefinitionTobacco Control
Definition: Tobacco control refers to a comprehensive set of public health policies and interventions designed to reduce tobacco use and…
Read DefinitionToxicology
Definition: Toxicology is the scientific study of the adverse effects of chemical, physical, or biological agents on living organisms and…
Read DefinitionTransmission
Definition: Transmission refers to the process by which an infectious agent, such as a virus, bacterium, or parasite, is spread…
Read DefinitionTriage
Definition: Triage is the process of prioritizing patients or populations for care based on the severity of their condition and…
Read DefinitionUncertainty (epidemiology)
Definition: Uncertainty in epidemiology refers to the inherent lack of complete knowledge or the degree of doubt regarding the true…
Read DefinitionUnder-five mortality rate
Definition: The Under-five mortality rate (U5MR) is the probability of a child born in a specific year or period dying…
Read DefinitionUnderreporting (surveillance)
Definition: Underreporting in public health surveillance refers to the failure to report all true instances of a disease, health event,…
Read DefinitionUnderserved populations
Definition: Underserved populations are groups who experience significant barriers to accessing essential health and social services, leading to poorer health…
Read DefinitionUnintended consequences
Definition: Unintended consequences are outcomes that arise from a planned intervention or policy but were not foreseen or intended by…
Read DefinitionUniversal Health Coverage
Definition: Universal Health Coverage (UHC) ensures that all people have access to the full range of quality health services they…
Read DefinitionUpstream interventions
Definition: Upstream interventions are public health strategies that address the fundamental social, economic, and environmental determinants of health to prevent…
Read DefinitionUrbanization
Definition: Urbanization is the demographic process characterized by an increasing proportion of a population living in urban areas, resulting from…
Read DefinitionUsability (health informatics)
Definition: Usability in health informatics refers to the extent to which health information technology (HIT) systems can be used by…
Read DefinitionUtility (health economics)
Definition: In health economics, utility represents the subjective value or preference an individual places on a particular health state or…
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