[Shewhart control charts and the cumulative sum test--the use of clinical data in quality control].
until further notice
SourceNederlands Tijdschrift voor Geneeskunde, 154, (2010), pp. A1245
Article / Letter to editor
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Cardio Thoracic Surgery
Nederlands Tijdschrift voor Geneeskunde
SubjectNCEBP 14: Cardiovascular diseases; NCEBP 4: Quality of hospital and integrated care
Now that quality control in health care is attracting an increasing amount of attention, every doctor needs to have knowledge and understanding of the basic principles of the most commonly used methods, especially considering that quality control starts with scrupulous monitoring of everyday procedures. The methods in use are based on statistical process control. Shewhart control charts are easy to construct and are principally suitable for the monitoring of a group of results. The cumulative sum test is more suitable for a continuous process control, even of smaller quantities. These methods primarily give a warning signal, with a request for further analysis, rather than giving direct evidence of poor quality.
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