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Application of cusum techniques to the routine monitoring of analytical performance in clinical laboratories
Author(s) -
Rowlands R. J.,
Griffiths K.,
Kemp K. W.,
Nix A. B. J.,
Richards G.,
Wilson D. W.
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.4780020207
Subject(s) - cusum , computer science , statistics , reliability engineering , mathematics , engineering
Quality control data from a radioimmunoassay of progesterone are analysed. The measurements are found to have a lognormal distribution. A likelihood analysis of the change‐point is described. Some rival continuous inspection schemes are compared and it is pointed out that more efficient schemes than Shewhart's can be implemented in clinical laboratories with the aid of a computer.