Cohort (statistics)
Cohort (statistics)
Cohort (pronunciation: /ˈkoʊhɔːrt/) in statistics refers to a group of subjects who share a defining characteristic. We usually find cohorts in medical and social sciences, epidemiology, and ecology.
Etymology
The term "cohort" is derived from the Latin cohors, which means "enclosure". In ancient Rome, a cohort was a unit of soldiers. In statistics, the term is used to denote a group of subjects observed over time.
Definition
In statistics, a cohort is a group of individuals who share a common characteristic or experience within a defined period (e.g., are born, are exposed to a drug or vaccine, etc.). Cohorts can be more broadly defined for comparative purposes, as in a cohort study, where two or more groups of people (cohorts) are classified in terms of the presence or absence of exposure to a particular factor and followed to determine the incidence of an outcome.
Related Terms
- Cohort Study: A type of observational study that follows a cohort over time to find out the effects of different variables.
- Epidemiology: The study and analysis of the distribution, patterns and determinants of health and disease conditions in defined populations.
- Ecology: The branch of biology that studies the interactions among organisms and their environment.
- Observational Study: A type of study in which individuals are observed or certain outcomes are measured.
See Also
External links
- Medical encyclopedia article on Cohort (statistics)
- Wikipedia's article - Cohort (statistics)
This WikiMD article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski