Public Health Glossary

Decode complex terminology and master the language of public health.

Natality

Definition: Natality refers to the birth rate within a population, representing the number of live births relative to the total…

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Needs assessment

Definition: A needs assessment is a systematic process of collecting and analyzing data to identify the health problems, needs, and…

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Neonatal mortality

Definition: Neonatal mortality refers to the death of a live-born infant within the first 28 days of life (0-27 days),…

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Nested case-control study

Definition: A nested case-control study is an efficient epidemiological design where cases of a disease and a sample of controls…

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Non-communicable disease

Definition: Non-communicable diseases (NCDs) are chronic conditions that are not infectious and cannot be spread directly from person to person,…

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Nosocomial infection

Definition: A nosocomial infection, also known as a healthcare-associated infection (HAI), is an infection acquired by a patient during the…

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Notifiable disease

Definition: A notifiable disease is any disease required by law to be reported to government public health authorities when diagnosed.…

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Nuisance (public health)

Definition: A public health nuisance is any condition or activity that unreasonably interferes with the enjoyment of life or property…

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Null hypothesis

Definition: The null hypothesis (H₀) is a fundamental statistical statement proposing that there is no statistically significant relationship, difference, or…

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Nutrition

Definition: Nutrition, in public health, is the scientific study and practical application of how food and drink affect human health,…

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