cohort

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cohort

Biology a taxonomic group that is a subdivision of a subclass (usually of mammals) or subfamily (of plants)

cohort

a group of persons possessing a common characteristic, such as being born in the same year, or entering school on the same date. The term is usually used in making generalizations derived from quantitative data (see QUANTITATIVE RESEARCH TECHNIQUES).

Cohort

 

(Latin cohors ). (1) A tactical subdivision of a legion in ancient Rome from the second century B.c. A legion had ten cohorts, each with from 360 to 600 men.

(2) Figuratively, a tightly knit group of people.

(3) A biological classification category that unites several related orders. For instance, the cohort of the Unguiculata includes the orders Insectívora, Dermoptera, Chiroptera, and Primates.

cohort

[′kō‚hȯrt]
(statistics)
A group of individuals who experience a significant event, such as birth, during the same period of time.
References in periodicals archive ?
Especially when we aggregate cohorts 1990 and 1993 into one large cohort, and cohorts 1996 and 1999 into another, the downward trend as measured in AER-equivalent publications becomes evident at all percentiles reported here.
Within these cohorts, YouAppi has expanded its capabilities around its predictive analytics.
5 microns--dropped by 40 percent for the most recent cohort compared to the first cohort of children.
Prostate cancer incidence per 10,000 patientyears in cohorts 1 and 2 was 54.
7 for the older and younger cohorts, respectively).
Those in the first cohort were born in 1905 and assessed at the age of 93 years.
Among men, the cohorts born between 1870 and 1909, except for cohort 1890-1895, show a significantly higher risk of suicide, with risk ratios (RR) varying from 1.
ESCAPE (European Study of Cohorts for Air Pollution Effects).
We assume that each cohort has equal importance in the corresponding age group conditional on the number of cohorts in the group.
Toenail samples were obtained from both cohorts between 1982 and 1983, and 1986 and 1987 respectively.
2005) use earnings data for the BCS from age 30 but data from age 34 improve the comparability of data across the cohorts, and should lead to more accurate estimates of changes over time compared to previous work (see Haider and Solon, 2006, for a careful discussion of the possible impacts of lifecycle bias).