DALY (Disability-Adjusted Life Year)
A measure of overall disease burden, expressed as the number of years lost due to ill-health, disability or early death.
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Data Disaggregation
Definition: Data disaggregation is the process of breaking down aggregate data into smaller, more specific subgroups based on characteristics such…
Read DefinitionDeath Rate
Definition: The death rate is a measure of the number of deaths occurring in a population over a specified period,…
Read DefinitionDecentralization (Health System)
Definition: Decentralization in a health system refers to the transfer of authority, responsibility, and resources for health service planning, management,…
Read DefinitionDecontamination
Definition: Decontamination is the process of removing or neutralizing hazardous substances, such as chemical, biological, or radiological agents, from individuals,…
Read DefinitionDeficiency Disease
Definition: A deficiency disease is a condition resulting from a prolonged insufficient intake or absorption of one or more essential…
Read DefinitionDeinstitutionalization
Definition: Deinstitutionalization refers to the systematic movement of individuals with mental illness or developmental disabilities from large, long-stay institutional facilities…
Read DefinitionDelivery of Health Services
Definition: The delivery of health services refers to the comprehensive process by which healthcare interventions, treatments, and preventative measures are…
Read DefinitionDemographic Transition
Definition: The Demographic Transition is a multi-stage model that describes the historical shift in population growth patterns from high birth…
Read DefinitionDemography
Definition: Demography is the scientific study of human populations, focusing on their size, composition, distribution, and the processes by which…
Read DefinitionDental Public Health
Definition: Dental Public Health is the science and art of preventing and controlling oral diseases and promoting oral health through…
Read DefinitionDeprivation Index
Definition: A Deprivation Index is a composite measure that quantifies the level of socioeconomic disadvantage experienced by individuals or populations…
Read DefinitionDermal Exposure
Definition: Dermal exposure refers to the contact of a chemical, biological, or physical agent with the skin surface, potentially leading…
Read DefinitionDescriptive Epidemiology
Definition: Descriptive epidemiology is the branch of epidemiology that characterizes the distribution of health-related states or events by person, place,…
Read DefinitionDeterminants of Health
The range of personal, social, economic, and environmental factors that influence health status.
Read DefinitionDevelopmental Epidemiology
Definition: Developmental Epidemiology is an interdisciplinary field that examines how early-life biological, psychological, and social exposures and processes influence health…
Read DefinitionDiabetes Mellitus
Definition: Diabetes Mellitus is a chronic metabolic disease characterized by persistently high blood glucose (sugar) levels, resulting either from the…
Read DefinitionDiagnostic Test
Definition: A diagnostic test is a medical procedure or assay performed to identify the presence or absence of a specific…
Read DefinitionDiarrheal Disease
Definition: Diarrheal disease is defined by the passage of three or more loose or watery stools in a 24-hour period,…
Read DefinitionDichotomous Variable
Definition: A dichotomous variable is a type of categorical variable that can take on only one of two possible values…
Read DefinitionDietary Guidelines
Definition: Dietary Guidelines are evidence-based recommendations issued by national governments or health organizations to promote healthy eating patterns, aiming to…
Read DefinitionDiffusion of Innovations (Public Health)
Definition: Diffusion of Innovations is a theory explaining how, why, and at what rate new ideas, practices, or products (innovations)…
Read DefinitionDirectly Observed Treatment, Short-course (DOTS)
Definition: Directly Observed Treatment, Short-course (DOTS) is a standardized, highly effective strategy for tuberculosis (TB) control where a healthcare worker…
Read DefinitionDisability
Definition: Disability is a complex public health concept describing the interaction between an individual's health condition (impairments, activity limitations) and…
Read DefinitionDisability-Adjusted Life Expectancy (DALE)
Definition: Disability-Adjusted Life Expectancy (DALE) is a measure of the average number of years a person can expect to live…
Read DefinitionDisaster Preparedness
Definition: Disaster preparedness refers to the proactive planning and implementation of measures designed to minimize the adverse effects of potential…
Read DefinitionDisease Burden
Definition: Disease burden quantifies the overall impact of a disease or health condition on a population, measuring the total cost…
Read DefinitionDisease Control
Definition: Disease control refers to the systematic implementation of interventions aimed at reducing the incidence, prevalence, and impact of a…
Read DefinitionDisease Surveillance
Definition: Disease surveillance is the systematic, ongoing collection, analysis, interpretation, and dissemination of health-related data. Its purpose is to monitor…
Read DefinitionDisinfection
Definition: Disinfection is a process that eliminates most, but not all, pathogenic microorganisms on inanimate objects and surfaces, effectively reducing…
Read DefinitionDose-Response Relationship
Definition: The dose-response relationship describes how the magnitude of an effect (biological, physiological, or toxicological) in an organism or population…
Read DefinitionDouble Burden of Malnutrition
Definition: The Double Burden of Malnutrition refers to the simultaneous existence of both undernutrition (e.g., stunting, wasting, micronutrient deficiencies) and…
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