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Stat Med. 1985 Jan-Mar;4(1):87-90.

A Wilcoxon-type test for trend.

Abstract

An extension of the Wilcoxon rank-sum test is developed to handle the situation in which a variable is measured for individuals in three or more (ordered) groups and a non-parametric test for trend across these groups is desired. The uses of the test are illustrated by two examples from cancer research.

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PMID:
3992076
[PubMed - indexed for MEDLINE]
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