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Variable parameters memory-type control charts for simultaneous monitoring of the mean and variability of multivariate multiple linear regression profiles
Umeå University, Faculty of Social Sciences, Umeå School of Business and Economics (USBE), Statistics.ORCID iD: 0000-0002-5618-887x
Umeå University, Faculty of Social Sciences, Umeå School of Business and Economics (USBE), Statistics.ORCID iD: 0000-0003-3298-1555
2024 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 14, no 1, article id 9288Article in journal (Refereed) Published
Abstract [en]

Variable parameters (VP) schemes are the most effective adaptive schemes in increasing control charts' sensitivity to detect small to moderate shift sizes. In this paper, we develop four VP adaptive memory-type control charts to monitor multivariate multiple linear regression profiles. All the proposed control charts are single-chart (single-statistic) control charts, two use a Max operator and two use an SS (squared sum) operator to create the final statistic. Moreover, two of the charts monitor the regression parameters, and the other two monitor the residuals. After developing the VP control charts, we developed a computer algorithm with which the charts' time-to-signal and run-length-based performances can be measured. Then, we perform extensive numerical analysis and simulation studies to evaluate the charts’ performance and the result shows significant improvements by using the VP schemes. Finally, we use real data from the national quality register for stroke care in Sweden, Riksstroke, to illustrate how the proposed control charts can be implemented in practice.

Place, publisher, year, edition, pages
Nature Publishing Group, 2024. Vol. 14, no 1, article id 9288
Keywords [en]
Multivariate multiple linear regression profles, Profle monitoring, Memory-type control charts, Max-type control charts, SS-type control charts, VP adaptive control charts, Monte Carlo simulation, Healthcare
National Category
Public Health, Global Health and Social Medicine Health Care Service and Management, Health Policy and Services and Health Economy Probability Theory and Statistics Computational Mathematics
Research subject
Statistics; health services research; computer and systems sciences; Systems Analysis; Mathematical Statistics
Identifiers
URN: urn:nbn:se:umu:diva-223818DOI: 10.1038/s41598-024-59549-8ISI: 001207399200101PubMedID: 38654017Scopus ID: 2-s2.0-85191066426OAI: oai:DiVA.org:umu-223818DiVA, id: diva2:1854708
Available from: 2024-04-26 Created: 2024-04-26 Last updated: 2025-04-24Bibliographically approved

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Sabahno, HamedEriksson, Marie

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