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Statistical Process Control And Medical Surveillance. An Application With Liver Function Tests, Bryan D. Richardson
Statistical Process Control And Medical Surveillance. An Application With Liver Function Tests, Bryan D. Richardson
Theses and Dissertations
Traditionally, medical surveillance of liver disease generally involves a battery of tests. This research used multivariate analysis techniques to reduce the number of measures required to identify liver dysfunction and found using a Transferase Index (a combination of three tests; ALT, AST, and GGT) provided the most satisfying assessment, but the single best indicator, ALT, may be sufficient. Transferase Index and ALT criterion were both applied to SPC control charts. Through the use of statistical process control (SPC), this research identified work zones possessing signs of adverse effects to an individual's liver as a possible result of their work environment …
Statistical Process Control In Medical Surveillance. An Application Using Spirometry, Paul W. Mcaree
Statistical Process Control In Medical Surveillance. An Application Using Spirometry, Paul W. Mcaree
Theses and Dissertations
This research effort concentrated on applying statistical process control techniques to the results of seven years worth of spirometry exams of workers at Wright-Patterson AFB in helping the occupational health squadron identify potential work hazard areas. Each spirometry exam was classified as abnormal or normal based on a comparison with established normals or a significant loss of function from the previous year's exam for the individual. Each test was classified into the work area of the individual and the number of abnormalities per population of the work area was examined.