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Potentially inappropriate prescribing according to STOPP and START and adverse outcomes in community-dwelling older people: a prospective cohort study.

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posted on 22.11.2019 by Frank Moriarty, Kathleen Bennett, Caitriona Cahir, Rose Anne Kenny, Tom Fahey

AIMS: This study aims to determine if potentially inappropriate prescribing (PIP) is associated with increased healthcare utilization, functional decline and reduced quality of life (QoL) in a community-dwelling older cohort.

METHOD: This prospective cohort study included participants aged ≥65 years from The Irish Longitudinal Study on Ageing (TILDA) with linked administrative pharmacy claims data who were followed up after 2 years. PIP was defined by the Screening Tool for Older Persons Prescriptions (STOPP) and Screening Tool to Alert doctors to Right Treatment (START). The association with number of emergency department (ED) visits and GP visits reported over 12 months was analyzed using multivariate negative binomial regression adjusting for confounders. Marginal structural models investigated the presence of time-dependent confounding.

RESULTS: Of participants followed up (n = 1753), PIP was detected in 57% by STOPP and 41.8% by START, 21.7% reported an ED visit and 96.1% visited a GP (median 4, IQR 2.5-6). Those with any STOPP criterion had higher rates of ED visits (adjusted incident rate ratio (IRR) 1.30, 95% confidence interval (CI) 1.02, 1.66) and GP visits (IRR 1.15, 95%CI 1.06, 1.24). Patients with two or more START criteria had significantly more ED visits (IRR 1.45, 95%CI 1.03, 2.04) and GP visits (IRR 1.13, 95%CI 1.01, 1.27) than people with no criteria. Adjusting for time-dependent confounding did not affect the findings.

CONCLUSIONS: Both STOPP and START were independently associated with increased healthcare utilization and START was also related to functional decline and QoL. Optimizing prescribing to reduce PIP may provide an improvement in patient outcomes.

Funding

FM had support from the Health Research Board in Ireland (HRB) through the HRB PhD Scholars Programme in Health Services Research (grant no. PHD/2007/16) and TF had support from the HRB through the HRB Centre for Primary Care Research (grant no. HRC/2007/1) for the submitted work. TILDA was supported by Department of Health and Children, The Atlantic Philanthropies and Irish Life.

History

Comments

This is the peer reviewed version of the following article: Moriarty F, Bennett K, Cahir, C, Kenny RA, Fahey T. Potentially inappropriate prescribing according to STOPP and START and adverse outcomes in community-dwelling older people: a prospective cohort study. British Journal of Clinical Pharmacology. 2016; 82(3):849-57, which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1111/bcp.12995/pdf. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.

Published Citation

Moriarty F, Bennett K, Cahir, C, Kenny RA, Fahey T. Potentially inappropriate prescribing according to STOPP and START and adverse outcomes in community-dwelling older people: a prospective cohort study. British Journal of Clinical Pharmacology. 2016; 82(3):849-57

Publication Date

01/09/2016

Publisher

Wiley

PubMed ID

27136457

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