Pereira, Filipa; Verloo, Henk; Zhivko, Taushanov; Di Giovanni, Saviana; Meyer-Massetti, Carla; von Gunten, Armin; Martins, Maria Manuela; Wernli, Boris (2021). Risk of 30-day hospital readmission associated with medical conditions and drug regimens of polymedicated, older inpatients discharged home: a registry-based cohort study. BMJ open, 11(7), e052755. BMJ Publishing Group 10.1136/bmjopen-2021-052755
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OBJECTIVES
The present study analysed 4 years of a hospital register (2015-2018) to determine the risk of 30-day hospital readmission associated with the medical conditions and drug regimens of polymedicated, older inpatients discharged home.
DESIGN
Registry-based cohort study.
SETTING
Valais Hospital-a public general hospital centre in the French-speaking part of Switzerland.
PARTICIPANTS
We explored the electronic records of 20 422 inpatient stays by polymedicated, home-dwelling older adults held in the hospital's patient register. We identified 13 802 hospital readmissions involving 8878 separate patients over 64 years old.
OUTCOME MEASURES
Sociodemographic characteristics, medical conditions and drug regimen data associated with risk of readmission within 30 days of discharge.
RESULTS
The overall 30-day hospital readmission rate was 7.8%. Adjusted multivariate analyses revealed increased risk of hospital readmission for patients with longer hospital length of stay (OR=1.014 per additional day; 95% CI 1.006 to 1.021), impaired mobility (OR=1.218; 95% CI 1.039 to 1.427), multimorbidity (OR=1.419 per additional International Classification of Diseases, 10th Revision condition; 95% CI 1.282 to 1.572), tumorous disease (OR=2.538; 95% CI 2.089 to 3.082), polypharmacy (OR=1.043 per additional drug prescribed; 95% CI 1.028 to 1.058), and certain specific drugs, including antiemetics and antinauseants (OR=3.216 per additional drug unit taken; 95% CI 1.842 to 5.617), antihypertensives (OR=1.771; 95% CI 1.287 to 2.438), drugs for functional gastrointestinal disorders (OR=1.424; 95% CI 1.166 to 1.739), systemic hormonal preparations (OR=1.207; 95% CI 1.052 to 1.385) and vitamins (OR=1.201; 95% CI 1.049 to 1.374), as well as concurrent use of beta-blocking agents and drugs for acid-related disorders (OR=1.367; 95% CI 1.046 to 1.788).
CONCLUSIONS
Thirty-day hospital readmission risk was associated with longer hospital length of stay, health disorders, polypharmacy and drug regimens. The drug regimen patterns increasing the risk of hospital readmission were very heterogeneous. Further research is needed to explore hospital readmissions caused solely by specific drugs and drug-drug interactions.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
04 Faculty of Medicine > Medical Education > Institute of General Practice and Primary Care (BIHAM) |
UniBE Contributor: |
Meyer-Massetti, Carla Verena |
Subjects: |
600 Technology > 610 Medicine & health 300 Social sciences, sociology & anthropology > 360 Social problems & social services |
ISSN: |
2044-6055 |
Publisher: |
BMJ Publishing Group |
Funders: |
[4] Swiss National Science Foundation |
Language: |
English |
Submitter: |
Andrea Flükiger-Flückiger |
Date Deposited: |
28 Jul 2021 15:50 |
Last Modified: |
02 Mar 2023 23:35 |
Publisher DOI: |
10.1136/bmjopen-2021-052755 |
PubMed ID: |
34261693 |
Uncontrolled Keywords: |
clinical pharmacology epidemiology geriatric medicine |
BORIS DOI: |
10.48350/157661 |
URI: |
https://boris.unibe.ch/id/eprint/157661 |
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