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The leicestershire perinatal mortality study: A case study of multi‐group discriminant analysis with complex sampling
Author(s) -
Clayton David G.
Publication year - 1983
Publication title -
statistics in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.996
H-Index - 183
eISSN - 1097-0258
pISSN - 0277-6715
DOI - 10.1002/sim.4780020218
Subject(s) - linear discriminant analysis , homogeneous , discriminant , sampling (signal processing) , statistics , medicine , perinatal mortality , demography , mathematics , computer science , artificial intelligence , pregnancy , sociology , fetus , filter (signal processing) , combinatorics , biology , computer vision , genetics
Case‐control studies are usually analysed by two‐group discriminant analysis or by a related method. However, in case‐control studies of perinatal mortality the cases (perinatal deaths) are far from homogeneous, and it is likely that some risk factors are relevant only to certain subgroups of cases. This paper proposes a seven‐category classification of perinatal deaths and reports an analysis using multi‐group discriminant analysis. The problem is further complicated by non‐random sampling of controls.