Gregor Štiglic (Author), Petra Povalej (Author), Nino Fijačko (Author), Fei Wang (Author), Alexandros Kalousis (Author), Boris Delibašić (Author), Zoran Obradović (Author)

Abstract

Different studies have demonstrated the importance of comorbidities to better understand the origin and evolution of medical complications. This study focuses on improvement of the predictive model interpretability based on simple logical features representing comorbidities. We use group lasso based feature interaction discovery followed by a post-processing step, where simple logic terms are added. In the final step, we reduce the feature set by applying lasso logistic regression to obtain a compact set of non-zero coefficients that represent a more comprehensible predictive model. The effectiveness of the proposed approach was demonstrated on a pediatric hospital discharge dataset that was used to build a readmission risk estimation model. The evaluation of the proposed method demonstrates a reduction of the initial set of features in a regression model by 72%, with a slight improvement in the Area Under the ROC Curve metric from 0.763 (95% CI: 0.755%0.771) to 0.769 (95% CI: 0.761%0.777). Additionally, our results show improvement in comprehensibility of the final predictive model using simple comorbidity based terms for logistic regression.

Keywords

predictive models;logistic regression;readmission classification;comorbidities;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FZV - Faculty of Health Sciences
UDC: 004.6:61
COBISS: 2183076 Link will open in a new window
ISSN: 1932-6203
Views: 882
Downloads: 314
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: Slovenian
Secondary keywords: napovedovalni modeli;logistična regresija;klasifikacija ponovnega sprejema;pridružene motnje;
URN: URN:SI:UM:
Type (COBISS): Scientific work
Pages: str. 1-6
Volume: ǂVol. ǂ10
Issue: ǂno. ǂ12
Chronology: 2015
DOI: 10.1371/journal.pone.0144439
ID: 9142110