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Phase-I Risk-Adjusted Geometric Control Charts to Monitor Health-care Systems

Mohammadian, F ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1002/qre.1722
  3. Abstract:
  4. Because of the importance of health-care processes to people life, researchers attempted to reduce death rates using risk-adjusted control charts. In this paper, the number of patients survived at least 30days after a surgery is monitored using a novel risk-adjusted geometric control chart. In this chart, the patient risk is modeled using a logistic regression. The new scheme is proposed to be used in Phase-I where a likelihood ratio test derived from a change-point model is employed. The application of the proposed chart is demonstrated in a case study. Furthermore, through simulation studies, it is shown that the proposed control chart is more effective in terms of power than the chart with a binary random variable
  5. Keywords:
  6. Change point ; Likelihood ratio test ; Phase-I ; Risk-adjusted control charts ; Flowcharting ; Binary random variables ; Change-point models ; Control charts ; Health-care system ; Likelihood ratio tests ; Logistic regressions ; Simulation studies ; Health risks
  7. Source: Quality and Reliability Engineering International ; 2014 ; ISSN: 1099-1638
  8. URL: http://onlinelibrary.wiley.com./doi/10.1002/qre.1722/abstract;jsessionid=4842F6BFD46A6F0195C26810D5AF89A3.f01t04