cohort

cohort

 [ko´hort]

in research and statistics, a group of individuals who share a characteristic at some specific time and who are then followed forward in time, with data being collected at one or more suitable intervals. The most common use of the term is to describe a birth cohort, in which all the group members are born in a specified time period, but other common characteristics could define the cohort, such as marriage date, exposure to an infectious agent, or date of diagnosis or of treatment for a disease.

Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

co·hort

(kō'hōrt),

1. Component of the population born during a particular period and identified by period of birth so that its characteristics can be ascertained as it enters successive time and age periods.

2. Any designated group followed or traced over a period, as in an epidemiologic cohort study.

[L. cohors, retinue, military unit]

Farlex Partner Medical Dictionary © Farlex 2012

cohort

EBM
A subgroup of a population with a common feature, usually age (e.g., all persons in the UK born in 1964 form a birth cohort).

Social medicine
A group of persons born at about the same time who share common historical or cultural experiences.

Trials
A group of persons or animals of the same species with a common characteristic, set of characteristics, or exposure, who are followed for the incidence of new diseases or events, as in a cohort for a prospective study.

Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

cohort

Clinical trials A group of persons with a common characteristic, set of characteristics or exposure, who are followed for the incidence of new diseases or events, as in a cohort for a prospective study. See Birth cohort, Cluster, Inception cohort.

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

co·hort

(kō'hōrt)

1. Component of the population born during a particular period and identified by period of birth so that its characteristics can be ascertained as it enters successive time and age periods.

2. Any designated group followed or traced over a period, as in an epide miological cohort study.

[L. cohors, retinue, military unit]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

cohort

A group of persons all born on the same day. Cohort studies are valuable in medical and epidemiological research.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

cohort

a group of organisms in a population all of which are the same age.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

co·hort

(kō'hōrt)

Designated group followed or traced over a period.

[L. cohors, retinue, military unit]

Medical Dictionary for the Dental Professions © Farlex 2012