Process control chart

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Process control charts are used in statistical process control for quality measurement such as in health care quality assurance.[1][2] A process is a "transformation of a set of inputs, which can include materials, actions, methods and operations into desired outputs in the form of products, information, services or - generally - results."[3]

Statistical analysis of the charts is not required.[4]

Examples are assessing methods to obtain blood cultures[5], the impact of screening for methicillin resistant Staphylococcus aureus[6] and comparing mortality in surgical units[7].

## References[edit]

1. ↑ Chambers, David; Wheeler, Donald J. (1992). Understanding statistical process control. Knoxville, TN: SPC Press. ISBN 0-945320-13-2.
2. ↑ Lloyd, Robert M.; Carey, Raymond G. (1995). Measuring quality improvement in healthcare: a guide to statistical process control applications. White Plains, N.Y: Quality Resources. ISBN 0-527-76293-8.
3. ↑ Oakland, John S. (2007). Statistical Process Control, Sixth Edition. Oxford: Butterworth-Heinemann. ISBN 0-7506-6962-4.
4. ↑ Neave, Henry R; Wheeler,Donald J. (1996). Shewhart’s Charts and the Probability Approach (pdf). Retrieved on 05/17/2008.
5. ↑ Norberg A, Christopher NC, Ramundo ML, Bower JR, Berman SA (February 2003). "Contamination rates of blood cultures obtained by dedicated phlebotomy vs intravenous catheter". JAMA 289 (6): 726–9. PMID 12585951. [e]
6. ↑ Harbarth S, Fankhauser C, Schrenzel J, et al (March 2008). "Universal screening for methicillin-resistant Staphylococcus aureus at hospital admission and nosocomial infection in surgical patients". JAMA 299 (10): 1149–57. DOI:10.1001/jama.299.10.1149. PMID 18334690. Research Blogging.
7. ↑ Tekkis PP, McCulloch P, Steger AC, Benjamin IS, Poloniecki JD (April 2003). "Mortality control charts for comparing performance of surgical units: validation study using hospital mortality data". BMJ 326 (7393): 786–8. DOI:10.1136/bmj.326.7393.786. PMID 12689973. Research Blogging.

## External links[edit]

* Lloyd, Robert M.; Carey, Raymond G. (1995). Measuring quality improvement in healthcare: a guide to statistical process control applications. White Plains, N.Y: Quality Resources. ISBN 0-527-76293-8.
* SPC Press