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The coxian phase-type distribution as a contribution to the multilevel model of in-hospital mortality.
- Source :
- Communications in Statistics: Theory & Methods; 2016, Vol. 45 Issue 6, p1819-1830, 12p
- Publication Year :
- 2016
-
Abstract
- This paper presents multilevel models that utilize the Coxian phase-type distribution in order to be able to include a survival component in the model. The approach is demonstrated by modeling patient length of stay and in-hospital mortality in geriatric wards in Italy. The multilevel model is used to provide a means of controlling for the existence of possible intra-ward correlations, which may make patients within a hospital more alike in terms of experienced outcome than patients coming from different hospitals, everything else being equal. Within this multilevel model we introduce the use of the Coxian phase-type distribution to create a covariate that represents patient length of stay or stage (of hospital care). Results demonstrate that the use of the multilevel model for representing the in-patient mortality is successful and further enhanced by the inclusion of the Coxian phase-type distribution variable (stage covariate). [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 03610926
- Volume :
- 45
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Communications in Statistics: Theory & Methods
- Publication Type :
- Academic Journal
- Accession number :
- 113740233
- Full Text :
- https://doi.org/10.1080/03610926.2015.1038394