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catchment area
(redirected from catchment areas)

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catchment area

In earth sciences, the area from which water is collected by a river and its tributaries. In the social sciences the term may be used to denote the area from which people travel to obtain a particular service or product, such as the area from which a school draws its pupils.



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blood; cerebrospinal, joint, or pleural fluid) of residents in their catchment areas to identify cases.
The government had approved the clear-cutting of forests that were catchment areas for water and encouraged the cultivating of exotic plantations.
This led to a geographically biased sample, unless the population density of males approximately 20-40 years of age happened to correspond with the catchment areas for testicular cancer of the hospitals used for the recruitment of cases, weighted by the number of cases for each one.
 
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