The leicestershire perinatal mortality study: A case study of multi-group discriminant analysis with complex sampling

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Abstract
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.

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