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Quantifying Radiological Changes in Simple Pneumoconiosis
Author(s) -
Jacobsen M.
Publication year - 1975
Publication title -
journal of the royal statistical society: series c (applied statistics)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.205
H-Index - 72
eISSN - 1467-9876
pISSN - 0035-9254
DOI - 10.2307/2346571
Subject(s) - radiological weapon , pneumoconiosis , simple (philosophy) , medicine , radiology , pathology , philosophy , epistemology
Summary Methods of handling data arranged in ordered categories are reviewed in the context of radiological classifications of simple pneumoconiosis. Assumptions required for analyses of proportions, of scores corresponding to the natural numbers and of Normalized scores are discussed critically. Temporal extrapolation of changes in ordered classifications is considered using a Markov model.