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Determinants of Potentially Inappropriate Medication Use among Community-Dwelling Older Adults.

ABSTRACT: To examine the determinants of potentially inappropriate medication (PIM) use.U.S. nationally representative data on (n = 16,588) noninstitutionalized older adults (age ?65) with drug use from the 2006-2010 Medical Expenditure Panel Survey.We operationalized the 2012 Beers Criteria to identify PIM use during the year, and we examined associations with individual-level characteristics hypothesized to be quality enabling or related to need complexity.Almost one-third (30.9 percent) of older adults used a PIM. Multivariate results suggest that poor health status and high-PIM-risk conditions were associated with increased PIM use, while increasing age and educational attainment were associated with lower PIM use. Contrary to expectations, lack of a usual care source of care or supplemental insurance was associated with lower PIM use. Medication intensity appears to be in the pathway between both quality-enabling and need-complexity characteristics and PIM use.Our results suggest that physicians attempt to avoid PIM use in the oldest old but have inadequate focus on the high-PIM-risk conditions. Educational programs targeted to physician practice regarding high-PIM-risk conditions and patient literacy regarding medication use are potential responses.

SUBMITTER: Miller GE

PROVIDER: S-EPMC5517671 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature

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Determinants of Potentially Inappropriate Medication Use among Community-Dwelling Older Adults.

Miller G Edward GE Sarpong Eric M EM Davidoff Amy J AJ Yang Eunice Y EY Brandt Nicole J NJ Fick Donna M DM

Health services research 20160929 4

<h4>Objective</h4>To examine the determinants of potentially inappropriate medication (PIM) use.<h4>Data sources/study setting</h4>U.S. nationally representative data on (n = 16,588) noninstitutionalized older adults (age ≥65) with drug use from the 2006-2010 Medical Expenditure Panel Survey.<h4>Study design</h4>We operationalized the 2012 Beers Criteria to identify PIM use during the year, and we examined associations with individual-level characteristics hypothesized to be quality enabling or ...[more]

PMID: 27686781

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Project description:ObjectivesTo assess the prevalence of potentially inappropriate medication (PIM) use in Hong Kong older patients visiting general outpatient clinics (GOPCs) between 2006 and 2014 and to identify factors associated with PIM use among older adults visiting GOPCs in 2014.DesignCross-sectional study.SettingGOPC.ParticipantsTwo study samples were constructed including a total of 844 910 patients aged 65 and above from 2006 to 2014 and a cohort of 489 301 older patients in 2014.MeasurementsTwo subsets of the 2015 American Geriatrics Society Beers criteria-PIMs independent of diagnosis and PIMs due to drug-disease interactions-were used to estimate the prevalence of PIM use over 12 months. PIMs that were not included in the Hospital Authority drug formulary or with any specific restriction or exception in terms of indication, dose or therapy duration were excluded. Characteristics of PIM users and non-PIM users visiting GOPCs in 2014 were compared. Independent associations between patient variables and PIM use were assessed by stepwise multivariable logistic regression analysis.ResultsThe 12-month period prevalence of PIM use decreased from 55.56% (95% CI 55.39% to 55.72%) in 2006 to 47.51% (95% CI 47.37% to 47.65%) in 2014. In the multivariable regression analysis, the strongest factor associated with PIM use was the number of different drugs prescribed (adjusted OR, AOR 23.01, 95% CI 22.36 to 23.67). Being female (AOR 0.89, 95% CI 0.85 to 0.87 for males vs females) and having a greater number of GOPC visits (AOR 1.83, 95% CI 1.78 to 1.88) as well as more than six diagnoses (AOR 1.43, 95% CI 1.36 to 1.52) were associated with PIM use.ConclusionsThe overall prevalence of PIM use in older adults visiting GOPCs decreased from 2006 to 2014 in Hong Kong although the prevalence of PIM use was still high in 2014. Patients with female gender, a larger number of medications prescribed, more frequent visits to GOPCs, and more than six diagnoses were at higher risk for PIM use.

Project description:BackgroundEfforts to minimize medication risks among older adults include avoidance of potentially inappropriate medications (PIMs). However, most PIMs research has focused on older people in aged or inpatient care, creating an evidence gap for community-dwelling older adults. To address this gap, we investigated the impact of PIMs use in the ASPirin in Reducing Events in the Elderly (ASPREE) clinical trial cohort.MethodsAnalysis included 19,114 community-dwelling ASPREE participants aged 70+ years (65+ if US minorities) without major cardiovascular disease, cognitive impairment, or significant physical disability. PIMs were defined according to a modified 2019 AGS Beers Criteria. Cox proportional-hazards regression models were used to estimate the association between baseline PIMs exposure and disability-free survival, death, incident dementia, disability, and hospitalization, with adjustment for sex, age, country, years of education, frailty, average gait speed, and comorbidities.ResultsAt baseline, 7396 (39% of the total) participants were prescribed at least one PIM. Compared with those unexposed, participants on a PIM at baseline were at an increased risk of persistent physical disability (adjusted hazard ratio [HR] 1.47, 95% confidence interval [CI] 1.21, 1.80) and hospitalization (adjusted HR 1.26, 95% CI 1.20, 1.32), but had similar rates of disability-free survival (adjusted HR 1.02; 95% CI 0.93, 1.13) and death (adjusted HR 0.92, 95% CI 0.81, 1.05). These effects did not vary by polypharmacy status in interaction analyses. PIMs exposure was associated with higher risk of disability followed by hospitalization (adjusted HR 1.92, 95% CI 1.25, 2.96) as well as vice versa (adjusted HR 1.54, 95% CI 1.15, 2.05). PPIs, anti-psychotics and benzodiazepines, were associated with increased risk of disability.ConclusionsPIMs exposure is associated with subsequent increased risk of both incident disability and hospitalization. Increased risk of disability prior to hospitalization suggests that PIMs use may start the disability cascade in healthy older adults. Our findings emphasize the importance of caution when prescribing PIMs to older adults in otherwise good health.

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Determinants of Potentially Inappropriate Medication Use among Community-Dwelling Older Adults.

Publications

Determinants of Potentially Inappropriate Medication Use among Community-Dwelling Older Adults.

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