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KY Loh, L Tay, 2660 Drug classes associated with geriatric readmissions: the canary in a coal mine, Age and Ageing, Volume 54, Issue Supplement_1, January 2025, afae277.124, https://doi.org/10.1093/ageing/afae277.124
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Abstract
Older adults are at increased risks of drug-related problems, contributed by increasing incidence of multimorbidity with age, and the consequent polypharmacy. We aim to investigate the drug classes associated with 30-day readmissions in hospitalised older adults.
We prospectively studied patients aged 65 years and above admitted to a general medical department in Sengkang General Hospital, Singapore, between October 2018 and January 2020. Medication lists were obtained from electronic medical records at admission. Unplanned readmission within 30 days of discharge was tracked through the hospital’s electronic health records. Medications were classified according to the World Health Organisation’s Anatomical Therapeutic Chemical classification system. Univariate logistic regression was performed for the association of drug classes with 30-day readmission.
We recruited 1507 consecutive admissions with follow-up data. 30-day readmission occurred in 331 patients (22.0%). Greater length of stay, higher comorbidity burden, hospitalisation in the year preceding index admission, frailty and polypharmacy were more commonly observed among patients who were readmitted within 30 days of discharge. Admission diagnoses associated with 30-day readmission include infections, fluid overload, acute coronary events and constipation. Drg classes associated with a higher risk of 30-day readmission include drugs for acid-related disorder (OR = 1.62, 95%CI 1.27–2.07), drugs for constipation (OR = 1.96, 95%CI 1.41–2.73), antithrombotic agents (OR = 1.40, 95%CI 1.09–1.79), antianaemic preparations (OR = 2.22, 95%CI 1.68–2.91), cardiac therapy (OR = 1.70, 95%CI 1.23–2.34), diuretics (OR = 1.41, 95%CI 1.04–1.90), beta-blocking agents (OR = 1.55, 95%CI 1.21–1.99) and analgesics (OR = 1.56, 95%CI 1.02–2.39).
Drg classes associated with 30-day geriatric readmissions include drugs for acid-related disorder, constipation, antithrombotic agents, antianaemic preparations, cardiac therapy, diuretics, beta-blocking agents and analgesics. Patients on the above drug classes should herald a higher index of scrutiny during admissions and necessitate closer follow-up upon discharge.
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