A classification of scottish infants using latent class analysis

R. M. Pickering, J. F. Forbes

Research output: Contribution to journalArticlepeer-review

Abstract

This paper illustrates the use of latent class analysis to classify 50,000 infants into a small number of classes or case types, as a preliminary to a study of the allocation of neonatal hospital resources throughout Scotland. Information, extracted from a detailed neonatal discharge record, was summarized by 11 clinical and diagnostic catagorical variables. Statistical models incorporating 1 to 6 latent classes were then estimated using the EM algorithm. The 4 class model was chosen because it provided a good description of the data and the resulting classes had a medical interpretation. The factors influencing the choice of model are discussed and goodness of fit tests are presented. The stability of the classes was also investigated using random halves of the data and an earlier comparable data set.

Original languageEnglish
Pages (from-to)249-259
Number of pages11
JournalStatistics in Medicine
Volume3
Issue number3
DOIs
Publication statusPublished - 1984
Externally publishedYes

Keywords

  • Classification
  • EM algorithm
  • Latent class analysis
  • Neonatal discharge record

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