Medications In Older Adults Research Articles

The risks and benefits of managing obesity in older adults.

In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time. This review discusses weight loss considerations in overweight and obese older adults. Current US guidelines do not address weight loss in older adults. Waist circumference rather than body mass index (BMI) may be a more accurate assessment tool for obesity in older adults. Weight loss interventions are not recommended in overweight older adults due to the decreased mortality in this population (known as the "obesity paradox"). While weight loss in obese older adults may be beneficial, it is not without risks. The greatest risks include loss of muscle mass, decline in bone mineral density, and development of sarcopenic obesity. Weight loss interventions may be considered in older adults with a BMI of greater than 30kg/m2 who have metabolic derangements, cardiovascular disease, and/or functional impairments after carefully weighing the risks against the benefits of weight loss and the impact of interventions on the patient's quality of life. Medicare provides limited benefits for weight loss interventions. In older adults, there is no consensus on which lifestyle interventions are best for weight loss and there is a paucity of data on the use of weight loss medications. Careful consideration should be given before utilizing medications for weight loss in older adults given the enhanced adverse effect profiles, interactions, contraindications, and costs. Weight loss in older adults should be approached differently from that in the general adult population. More data are needed on the efficacy and safety of weight loss medications in older adults.

Prevalence of strong anticholinergic use in residents with and without cognitive impairment and frailty: Analysis from 106 nursing homes in 12 Asia-Pacific and European countries

PurposeThere is a need to balance the benefits and risks associated with strong anticholinergic medications in older adults, particularly among those with frailty and cognitive impairment. This study explored the international prevalence of strong anticholinergic medication use in residents of nursing homes with and without cognitive impairment and frailty. MethodsSecondary, cross-sectional analyses of data from 5,800 residents of 106 nursing homes in Australia, China, Czech Republic, England, Finland, France, Germany, Israel, Italy, Japan, Netherlands, and Spain were conducted. Strong anticholinergic medications were defined as medications with a score of 2 or 3 on the Anticholinergic Cognitive Burden scale. Dementia or cognitive impairment was defined as a documented diagnosis or using a validated scale. Frailty was defined using the FRAIL-NH scale as 0–2 (non-frail), 3–6 (frail) and 7–14 (most-frail). Data were analyzed using descriptive statistics. ResultsOverall, 17.4 % (n = 1010) residents used ≥1 strong anticholinergic medication, ranging from 1.3 % (n = 2) in China to 27.1 % (n = 147) in Italy. The most prevalent strong anticholinergics were quetiapine (n = 290, 5.0 % of all residents), olanzapine (132, 2.3 %), carbamazepine (102, 1.8 %), paroxetine (88, 1.5 %) and amitriptyline (87, 1.5 %). Prevalence was higher among residents with cognitive impairment (n = 602, 17.9 %) compared to those without (n = 408, 16.8 %), and among residents who were most frail (n = 553, 17.9 %) compared to those who were frail (n = 286, 16.5 %) or non-frail (n = 171, 17.5 %). ConclusionsOne in six residents who were most frail and living with cognitive impairment used a strong anticholinergic. However, there was a 20-fold variation in prevalence across the 12 countries. Targeted deprescribing interventions may reduce potentially avoidable medication-harm.

Usability of APIMedOlder: A Web Application to Manage Potentially Inappropriate Medication in Older Adults.

Considering the increase in the proportion of the older population worldwide, the demand for health system resources also arises. These tools optimize clinical decision-making, thus avoiding iatrogenesis and thus contributing to a better quality of life for the older population. In response, we created an online web application, the APIMedOlder, that provides access to healthcare professionals to allow healthcare professionals to access potentially inappropriate medication identification criteria through a useful tool with a simplified profile, allowing its applicability in clinical practice. This study aims to assess the usability of the APIMedOlder online web application by healthcare professionals. A questionnaire, based on the System Usability Scale, was distributed among 15 healthcare professionals (five pharmacists, four physicians, three pharmacy technicians, and three nurses), to fully explore the website. Overall, healthcare professionals' evaluation of the usability of the APIMedOlder online web application was rated as "Best imaginable" (mean score of 87.17 points), with individual scores ranging from 75 to 100 points. Internal consistency of α = 0.881 (CI 95%: 0.766 - 0.953) was achieved. Specific questionnaire items contributing to this high score included ease of use, learning efficiency, and integration of functions. The overall evaluation of the developed tool was positive, with this online application being recognized as being easy to use and having well-integrated functions.

Prescription of potentially inappropriate medications in older adults; data from a dental institution

Objectives: To determine the types and frequency of potentially inappropriate medications (PIMs) prescribed to geriatric patients while considering the patients’ age groups and their American Society of Anesthesiologists (ASA) physical status.Study Design: We performed a five-year retrospective chart review of patients aged 65 and above who were seen in a dental institution. Patients’ medical history, PIM prescriptions, and prescribers’ specialty and professional status were analyzed.Results: Out of 10675 geriatric patients identified, 6.2% (n=662) received PIM prescriptions. Of those, 77% received one PIM while the others (23%) received anywhere between 2 to 6; the majority (73.7%) of these 662 patients fell within an ASA III physical status. NSAIDs were the most prescribed PIM (provided to 60.1% of subjects) followed by opioids (provided to 32.5% of subjects). Both NSAIDs and opioids were largely provided by providers in oral and maxillofacial surgery followed by those in restorative dentistry and periodontics. Benzodiazepines were mostly prescribed by endodontics providers, while tricyclic antidepressants, muscle relaxants, and anticonvulsants were mostly prescribed by oral medicine providers. Residents prescribed opioids at similar rates to faculty (p=0.78) but exceeded faculty in prescribing benzodiazepines (p<0.001).Conclusion: PIMs were prescribed at low percentages to geriatric patients; however, most prescriptions were provided to patients classified with ASA III status. Further efforts are indicated, at institutional and national levels, to monitor/limit PIMs provided to geriatric population.

Associations between sex, race/ethnicity, and age and the initiation of chronic high-risk medication in US older adults.

High-risk medication use is associated with an increased risk of adverse events, but little is known about its chronic utilization by key demographic groups. We aimed to study the associations between age, sex, and race/ethnicity with new chronic use of high-risk medications in older adults. In this retrospective cohort study, we analyzed data from older adults aged ≥65 years enrolled in a national health insurer who started a high-risk medication between 2017 and 2022 across 16 high-risk medication classes. We used generalized estimating equations to estimate the associations between sociodemographic classifications and the onset of chronic high-risk medication use after initiation (≥90 days' supply across ≥2 fills within 180 days). We adjusted the analyses for sociodemographic and clinical patient characteristics and added three-way interaction terms for race/ethnicity, sex, and age to explore whether the outcome varied across different subgroups of race/ethnicity, age, and sex. Across 2,751,069 patients (mean age: 74 years [SD = 7], 72% White, 60% Female), 406,075 (15%) became new chronic users of ≥1 high-risk medication. Compared to White older adults, Asian (RR = 0.81, 95% CI: 0.79-0.84), Black (RR = 0.92, 95% CI: 0.90-0.94), and Hispanic (RR = 0.85, 95% CI: 0.83-0.86) older adults had a lower risk of becoming new chronic users. Men had a higher risk compared to women (RR = 1.09, 95% CI: 1.08-1.10). Age was not significantly associated with new chronic high-risk medication use (≥75 years: RR = 1.00, 95% CI: 1.00-1.01). We observed differences across some medication classes, like benzodiazepines, first-generation antihistamines, and antimuscarinics for which non-White older adults were at a higher risk. The joint presence of specific age, sex, and race/ethnicity characteristics decreased the risk of becoming a new chronic user (e.g., Hispanic/Female/65-74 years: RR = 0.96, 95% CI: 0.94-0.99). New chronic high-risk medication use varied across older adults by sociodemographic characteristics, suggesting the need to individualize medication optimization approaches and better understand how systematic barriers in access to health care may influence differences in high-risk medication use in older adults.

Drug Allergies in Older Adults: A Major Problem in a Specific Population

Introduction: The use of medications in older adults is increasing due to the prevalence of chronic diseases. Data on the characteristics of drug allergies (DAs) in older adults are limited. This study investigated the prevalence and clinical characteristics of DAs in patients aged 65 years and older. Methods: Patient records were examined retrospectively between January 2018 and December 2022. The study included 200 patients aged ≥18 years who met the criteria for diagnosis of type B drug reactions. The patients were divided into two groups: the adult group (18–64 years) and the older adult group (≥65 years). Results: Advanced age was an independent risk factor for the development of anaphylaxis and immediate and delayed hypersensitivity reactions (odds ratio [OR] = 4.296; 95% confidence interval [CI] = 1.700–10.855; p = 0.002, OR = 3.800; 95% CI = 1.247–11.579; p = 0.019, OR = 3.028; 95% CI = 1.248–7.343; p = 0.014, respectively). Older adults had higher rates of comorbidities and polypharmacy (p < 0.001, p = 0.016, respectively), beta-lactam antibiotic allergy (p < 0.001), and hospitalization and intensive care unit (ICU) admission for DAs (p = 0.024, p = 0.045, respectively). Conclusion: Older age was an independent risk factor for anaphylaxis and both immediate and delayed reactions. Older adults had higher rates of comorbidities, polypharmacy, beta-lactam antibiotic triggers, and hospitalization and ICU admission.

Polypharmacy and potentially inappropriate medications in older adults who use long-term care services: a cross-sectional study

BackgroundOlder adults requiring care often have multiple morbidities that lead to polypharmacy, including the use of potentially inappropriate medications (PIMs), leading to increased medical costs and adverse drug effects. We conducted a cross-sectional study to clarify the actual state of drug prescriptions and the background of polypharmacy and PIMs.MethodsUsing long-term care (LTC) and medical insurance claims data in the Ibaraki Prefecture from April 2018 to March 2019, we included individuals aged ≥ 65 who used LTC services. The number of drugs prescribed for ≥ 14 days and the number of PIMs were counted. A generalized linear model was used to analyze the association between the backgrounds of individuals and the number of drugs; logistic regression analysis was used for the presence of PIMs. PIMs were defined by STOPP-J and Beers Criteria.ResultsHerein, 67,531 older adults who received LTC services were included. The median number of total prescribed medications and PIMs was 7(IQR 5–9) and 1(IQR 0–1), respectively. The main PIMs were loop diuretics/aldosterone antagonists (STOPP-J), long-term use of proton pump inhibitors (Beers Criteria), benzodiazepines/similar hypnotics (STOPP-J and Beers Criteria), and nonsteroidal anti-inflammatory drugs (STOPP-J and Beers Criteria). Multivariate analysis revealed that the number of medications and presence of PIMs were significantly higher in patients with comorbidities and in those visiting multiple medical institutions. However, patients requiring care level ≥1, nursing home residents, users of short-stay service, and senior daycare were negatively associated with polypharmacy and PIMs.ConclusionsPolypharmacy and PIMs are frequently observed in older adults who require LTC. This was prominent among individuals with comorbidities and at multiple consulting institutions. Utilization of nursing care facilities may contribute to reducing polypharmacy and PIMs.Graphical

Health Care Utilization and Costs Associated With Empagliflozin in Older Adults With Type 2 Diabetes.

We compared health care resource utilization (HCRU) and costs for inpatient and outpatient services and dispensed medications in older adults with type 2 diabetes initiating empagliflozin versus dipeptidyl peptidase 4 inhibitors (DPP-4is). The study population included U.S. Medicare fee-for-service beneficiaries with diabetes (age ≥65 years) initiating empagliflozin or DPP-4is (August 2014 to September 2018). We estimated rate ratios (RRs) for HCRU outcomes using zero-inflated negative binomial regression and per-member per-year (PMPY) cost differences using generalized linear model with gamma distributions, overall and stratified by baseline cardiovascular disease (CVD), after adjusting for 143 baseline covariates using 1:1 propensity score matching. We identified 23,335 matched pairs (mean age 72 years, 51% with baseline CVD). HCRU rates were lower in empagliflozin versus DPP-4i initiators (number of inpatient days, RR 0.89 [95% CI 0.82, 0.97]; number of emergency department [ED] visits, 0.86 [0.82, 0.91]; number of hospitalizations, 0.86 [0.79, 0.93]; number of office visits, 0.96 [0.95, 0.98]). Inpatient cost (-$713 PMPY [95% CI -847, -579), outpatient cost (-$198 PMPY[-272, -124]), and total cost of care (-$1,109 PMPY [-1,478, -739]) were lower for empagliflozin versus DPP-4is, although diabetes medication cost was higher in empagliflozin initiators ($454 PMPY [95% CI 284, 567]). In the CVD subgroup, total cost was lower for empagliflozin initiators (-$2,005 PMPY [-2,451, -1,337]), while the difference was attenuated in the non-CVD subgroup (-$296 PMPY[-740, 148]). Among older adults with diabetes, empagliflozin was associated with a lower number of inpatient days, hospitalizations, ED visits, and office visits and with lower costs of care compared with DPP-4is, especially in those with history of CVD.

RWD110 Group-Based Trajectory Modeling to Identify Longitudinal Patterns of Adherence to Oral Antidiabetic Medication in Older Adults on Concomitant Triple Therapy (Oral Antidiabetics, RAS Antagonists, Statins)

RWD110 Group-Based Trajectory Modeling to Identify Longitudinal Patterns of Adherence to Oral Antidiabetic Medication in Older Adults on Concomitant Triple Therapy (Oral Antidiabetics, RAS Antagonists, Statins)

Potentially inappropriate medications and their association with frailty, unplanned hospitalizations, and mortality in patients with cancer treated in the national U.S. Veterans Affairs Healthcare System.

1620 Background: We previously operationalized the NCCN list of high-risk medications in older adults into a measurable scale—Geriatric Oncology Potentially Inappropriate Medications (GO-PIMs)—to aid oncology teams in identifying PIMs and understand their impact (1). This scale revealed that PIMs were prevalent and associated with frailty in older patients with blood cancers. The current study aims to evaluate the ability of GO-PIMs to identify high-risk medications and their impact in patients with both solid and liquid tumors managed in a large national healthcare system. Methods: We performed a retrospective cohort study using data from the national Veterans Affairs (VA) Cancer Registry and electronic health record, including all veterans newly diagnosed with a solid or liquid malignancy in the years 2000-2023.The number of GO-PIMs for each patient were measured among outpatient pharmacy prescriptions in the 90 days preceding the initial diagnosis date (the index date). We evaluated the association of PIMs with baseline frailty (the electronic Veterans Affairs-Frailty Index [VA-FI], categorized as nonfrail [0-0.2], mildly frail [&gt;0.2-0.3], and moderate-to-severely frail [&gt;0.3]), time to unplanned hospitalization, and mortality in multivariable models adjusting for age, gender, cancer type and stage, Charlson comorbidity index, and socioeconomic factors (rurality, area deprivation index, and history of homelessness). Results: Among 307,487 newly diagnosed patients (median age 68.5, IQR 62.1-75.8; most common cancers: prostate [20.5%], lung [23.1%], GI [21.3%]), GO-PIMs were prevalent (39% patients with ≥1 GO-PIM). The most common classes of PIMs were SSRIs (12.4%); opioids (10.7%); benzodiazepines (9.5%), and corticosteroids (9.5%). Each additional PIM increased the odds of being mild or moderate-to-severely frail at diagnosis by 65%, controlling for all covariates (ordinal regression adjusted OR [aOR] 1.65, 95% CI 1.63-1.66). Increasing number of PIMs was also associated with a higher hazard of unplanned hospitalization (Cox regression aHR 1.04, 95% CI 1.04-1.05) and death (Cox regression aHR 1.05, 95% CI 1.05-1.06), controlling for frailty and all covariates. Conclusions: Independently of cancer type and stage, comorbidity, and other covariates, increasing PIMs identified by the GO-PIMs scale was associated with an increased risk of frailty at diagnosis, unplanned hospitalization in follow-up, and death. We are implementing the GO-PIMs scale in a clinician-facing application that will automate real-time detection of PIMs and recommendations for oncology teams in routine clinical practice. 1. Hshieh and DuMontier et al., J Natl Compr Canc Netw, 2022.

Considerations, barriers and enablers of deprescribing among healthcare professionals in Ogun State, Southwest, Nigeria: a cross-sectional survey

BackgroundDeprescribing is a clinical intervention aimed at managing polypharmacy and improving older adults’ health outcomes. However, evidence suggests that healthcare professionals (HCPs) may face challenges in implementing the intervention. This study aimed to explore the considerations, barriers and enablers of deprescribing among HCPs in Southwest Nigeria.MethodsA quantitative cross-sectional survey was carried out among consecutively sampled HCPs including physicians, pharmacists and nurses in two public tertiary healthcare hospitals in Ogun State, Southwest, Nigeria. A structured 43-item self-administered questionnaire was used to explore the participants’ sociodemographics, HCPs’ experience, considerations, barriers and enablers of deprescribing in older adults. The data were summarised using descriptive statistics including frequency and percentage. The Kruskal–Wallis test was used to determine differences in perceptions among the groups on a Likert scale. A p-value < 0.05 was considered significant.ResultsOverall, 453 copies of the questionnaire were analysed. Of the participants 204 (45.0%) were within the age group of 20–30 years; 173 (38.2%) claimed that older adults occasionally requested deprescribing of their medications. The majority (417; 92.1%) considered patients’ quality of life to be very important in deprescribing; 423 (93.4%) opined that having a care goal known to members of the HCP team is an enabler for deprescribing while 308 (68.0%) disagreed or strongly disagreed that lack of incentives and remuneration for HCPs that de-prescribe is a barrier to deprescribing. There is a significant difference among the participants across professional groups on the assertion that pressure from pharmaceutical companies is a barrier to deprescribing in older adults (p = 0.037).ConclusionsThe participants in this study had various considerations for deprescribing medication in older adults including patients’ quality of life. Having a care goal known to every HCP involved in managing a patient is an enabler for deprescribing while the lack of incentives and remuneration for HCPs that de-prescribe may not necessarily be a barrier to deprescribing. There is a need for regulations and policies to support the identified enablers among HCPs and reduce the barriers to effective deprescribing process.

Classification system for primary care provider eConsults about medications for older adults with frailty

BackgroundProviding primary care for people with frailty can be challenging due to an increased risk of adverse outcomes and use of potentially inappropriate medications which may exacerbate characteristics of frailty. eConsult is a service where primary care providers can receive timely specialist advice for their patients through a secure web-based application. We aimed to develop a classification system to characterize medication-focused eConsult questions for older adults with frailty and assess its usability.MethodsA classification system was developed and refined over three cycles of improvement through a cross-sectional study of 35 cases categorized as medication-focused from cases submitted in 2019 for patients aged 65 or older with frailty through the Champlain BASE eConsult service (Ontario, Canada). The final classification system was then applied to each case.ResultsThe classification system contains 5 sections: (1) case descriptives; (2) intent and type of question; (3) medication recommendations and additional information in the response; (4) medication classification; and (5) potentially inappropriate medications. Among the 35 medication-focused cases, the most common specialties consulted were endocrinology (9 cases, 26%) and cardiology (5 cases, 14%). Medication histories were available for 29 cases (83%). Many patients were prescribed potentially inappropriate medications based on explicit tools (AGS Beers Criteria®, STOPPFall, Anticholinergic Cognitive Burden Scale, ThinkCascades) yet few consults inquired about these medications.ConclusionA classification system to describe medication-related eConsult cases for patients experiencing frailty was developed and applied to 35 eConsult cases. It can be applied to more cases to identify professional development opportunities and enhancements for eConsult services.

Evaluation of Anti-Agitation Medication Prescribing Patterns by Age in the Emergency Department.

Acute agitation frequently occurs in the emergency department. Appropriate management is critical for the safety of all parties involved. Benzodiazepines and antipsychotics are commonly used for agitation, but safety concerns exist with these medications in older adults, even with acute use. The purpose of this study was to compare prescribing practices of anti-agitation medications between adults aged 18 to 64 years and those aged ≥ 65 years. This study was a retrospective chart review of patients who presented to the Veteran Affairs Southern Nevada Healthcare System emergency department and received haloperidol, droperidol, lorazepam, olanzapine, or ziprasidone from August 1, 2019, to July 31, 2022. Veterans were excluded if they had alcohol intoxication, alcohol withdrawal, benzodiazepine withdrawal, or medication administration unrelated to agitation. Safety outcomes included oxygen saturation < 95%, supplemental oxygen use, intubation, QTc prolongation, and new hypotension within 1 hour of medication administration. For the 232 patients who met inclusion criteria, baseline characteristics differed significantly. When comparing patients aged 18 to 64 years and those aged ≥ 65 years, the younger cohort had higher rates of substance use disorder diagnosis (55.3% vs 27.5%, P < .001), positive urine drug screen (69.7% vs 22.5%, P < .001), and 72-hour legal hold (59.9% vs 32.5%, P < .001), and lower rates of cognitive impairment or dementia (0.7% vs 48.8%, P < .001), and altered mental status-related diagnosis (2.0% vs 18.8%, P < .001). Anti-agitation medication selection significantly differed based on age (P = .02). Other than lorazepam (P = .007), no significant differences were noted in the dose ordered. No significant differences were observed for safety outcomes or additional anti-agitation doses. Anti-agitation prescribing practices may differ between adults aged 18 to 64 years and those aged ≥ 65 years. The findings of this study also suggest that the most common agitation etiologies may differ based on patient age. Additional higher-quality studies are needed to further explore acute agitation in older adults.

Impact of cost on prescribing diabetes medications for older adults with type 2 diabetes in the outpatient setting

BackgroundNewer diabetes medications have cardiorenal benefits beyond blood sugar lowering that make them a preferred treatment option in many patients. Despite this, studies have shown that prescribing of these medications remains suboptimal with medication costs being hypothesized as a reason for underutilization. ObjectiveTo understand clinicians’ decision-making processes for prescribing diabetes medications in older adults, focusing on higher cost medications. MethodsObservations of patient encounters and semi-structured interviews were conducted with clinicians from primary care, endocrinology, and geriatrics to elucidate themes into diabetes medication prescribing. A qualitative descriptive approach was used to analyze the data from interviews using an inductive coding scheme with themes derived from the data. ResultsTwenty-one interviews were conducted. Five themes were identified: 1) out-of-pocket costs drive prescribing decisions 2) out-of-pocket costs can be variable due to changing insurance plans or changing coverage 3) clinicians have difficulty with determining patient-specific out-of-pocket costs 4) clinicians manage the tradeoffs existing between cost, efficacy, and safety and 5) clinicians can use cost-modifying strategies such as patient assistance. ConclusionAddressing the challenges that medication costs pose to prescribing evidence-based medications for type 2 diabetes is necessary to optimize diabetes care for older adults.

Features of Polypharmacy in Dutch Older Outpatients with Personality Disorders: A Cross-sectional Study

Introduction: Pharmacotherapy in older adults with personality disorders (PDs) can be even more complicated compared to younger adults, because older adults stand at risk for polypharmacy and its negative consequences due to somatic comorbidities and biological age-related changes. Aims: This study’s primary objective serves to describe the point prevalence of polypharmacy in older adults with PDs. Next, we described 1) the number of psychotropics employed, 2) classes of psychotropics, 3) the number of somatic medication, and 4) the anticholinergic burden of the total medication. Methods: This cross sectional study was performed at a clinical center of excellence for older adults with PDs in the Netherlands. Fifty outpatients aged 65 years and older with a primary diagnosis of a PD were selected from an alphabetically ordered list. Data from the files on polypharmacy (use of five medications or more daily), use of medication and the anticholinergic burden (ARS score) was collected. Results: Polypharmacy was present in 72% of older adults with PDs. The mean number of psychotropics was 2.0 (SD 1.4) psychotropics per person, for somatic medication the mean was 6.2 (SD 3.6). Antidepressants were the most frequently prescribed (used by 62%), followed by anxiolytics (used by 40%). The mean ARS score was 1.1 points (SD 1.7). Conclusions: The prevalence of polypharmacy in older adults with PDs stands high, due to the high use of both psychotropics and somatic medication. Although this study provides important and new information on the use of medication in older adults, its representation of the population may be limited due to the tertiary care setting and small sample size excluding certain PDs (e.g., schizoid or obsessive-compulsive PD). Also, we did not register or measure the consequences of polypharmacy.

Mapping potentially inappropriate medications in older adults using the Anatomical Therapeutic Chemical (ATC) classification system.

Potentially inappropriate medications (PIMs) in older adults are medications in which risks often outweigh benefits and are suggested to be avoided. Worldwide, many distinct guidelines and tools classify PIMs in older adults. Collating these guidelines and tools, mapping them to a medication classification system, and creating a crosswalk will enhance the utility of PIM guidance for research and clinical practice. We used the Anatomical Therapeutic Chemical (ATC) Classification System, a hierarchical classification system, to map PIMs from eight distinct guidelines and tools (2019 Beers Criteria, Screening Tool for Older Person's Appropriate Prescriptions [STOPP], STOPP-Japan, German PRISCUS, European Union-7 Potentially Inappropriate Medication [PIM] list, Centers for Medicare & Medicaid Services [CMS] High-Risk Medication, Anticholinergic Burden Scale, and Drug Burden Index). Each PIM was mapped to ATC Level 5 (drug) and to ATC Level 4 (drug class). We then used the crosswalk (1) to compare PIMs and PIM drug classes across guidelines and tools to determine the number of PIMs that were index (drug-induced adverse event) or marker (treatment of drug-induced adverse event) drug of prescribing cascades, and (2) estimate the prevalence of PIM use in older adults continuously enrolled with fee-for-service Medicare in 2018 as use cases. Data visualization and descriptive statistics were used to assess guidelines and tools for both use cases. Out of 480 unique PIMs identified, only three medications-amitriptyline, clomipramine, and imipramine and two drug classes-N06AA (tricyclic antidepressants) and N06AB (selective serotonin reuptake inhibitors), were noted in all eight guidelines and tools. Using the crosswalk, 50% of classes of index drugs and 47% of classes of marker drugs of known prescribing cascades were PIMs. Additionally, 88% of Medicare beneficiaries were dispensed ≥1 PIM across the eight guidelines and tools. We created a crosswalk of eight PIM guidelines and tools to the ATC classification system and created two use cases. Our findings could be used to expand the ease of PIM identification and harmonization for research and clinical practice purposes.

FC25: Use of antidepressants in older adults in Sweden 2006-2020

Objectives:Antidepressants are among the most prescribed medications in older adults. In this study we aimed to explore the trends in the use of antidepressants in older Swedish adults between 2006 and 2020.Methods:We conducted a retrospective repeated cross-sectional study, where we included all older adults (65 years and older) registered in the Swedish National Prescribed Drug Register between 2006 and 2020. We estimated the use of antidepressants in older people for each year, across the 21 Swedish regions.Results:The Swedish population of older adults increased from 1.2 million in 2006 to 1.7 million in 2020. There was an increase in antidepressant use from 12.4% in 2006 to 13.2% in 2019 and 13.8% in 2020. We found that the use of antidepressants varied across age groups, older adults 85+ had a higher use (18.2% in 2006, 18.2% in 2019 and 19.4% in 2020) compared to those 65-74 years of age (9.6% in 2006, 11.7% in 2019 and 12.2% in 2020).Individuals who used antidepressants were generally older (mean age = 77.7) and more often women, compared to individuals who did not use antidepressants (mean age =75.7). Moreover, individuals who used antidepressants also had a higher use of benzodiazepine compared to non-users (25.1% vs. 6.4% in 2006; 16.0% vs. 2.7% in 2019 and 15.6% vs. 2.5% in 2020), sleeping drugs (27.7% vs. 10.9% in 2006; 25.2% vs. 9.3% in 2019 and 24.6% vs. 8.9% in 2020), first generation antipsychotics (1.1% vs. 4.0% in 2006 and 0.3% vs. 1.3% in 2020) and second-generation antipsychotics (1.0% vs. 6.3% in 2006 and 0.8% vs. 6.3% in 2020).Citalopram was the most frequently used antidepressant. However, its use declined from 2006 to 2020 and instead we observed an increase in the use of mirtazapine and sertraline. The prescription of tricyclic antidepressants (TCA), selective monoamine-A inhibitors and lithium was relative stable over time.Overall, antidepressants were prescribed at doses close to the defined daily doses (DDD), except for TCA, mianserin, bupropion and venlafaxine which were often prescribed at lower doses.Conclusions:We found a slight increase in antidepressant prescription in Sweden between 2006 and 2020, with older adults 85 years and older using more antidepressants compared to those 65-74 years of age. Use of antidepressants was associated with increased use of benzodiazepines, sleeping drugs (zolpidem and zopiclone), as well as first- and second-generation antipsychotics. Citalopram was the most prescribed antidepressant, but its use has declined over time.

Factors Affecting Prescribing of Type 2 Diabetes Medications in Older Adults within an Integrated Healthcare System.

Despite type 2 diabetes guidelines recommending against the use of sulfonylureas in older adults and for the use of sodium-glucose cotransporter-2 inhibitors (SGLT2) and glucagon-like peptide-1 agonists (GLP1s) in patients with atherosclerotic cardiovascular disease (ASCVD), chronic kidney disease (CKD), and heart failure (HF), real-world guideline-concordant prescribing remains low. While some factors such as cost have been suggested, an in-depth analysis of the factors associated with guideline-concordant prescribing is warranted. To quantify the extent of guideline-concordant prescribing in an integrated health care delivery system and examine provider and patient level factors that influence guideline-concordant prescribing. We performed a cross-sectional study. Participants were included if they had a diagnosis of type 2 diabetes, were prescribed a second-line diabetes medication between January 1, 2018 and December 31, 2020 and were at least 65 years old at the time of this second-line prescription. Our outcome of interest was guideline-concordant prescribing. The definition of guideline-concordant prescribing was based on American Diabetes Association and American Geriatric Society recommendations as well as expert consensus. Factors affecting guideline concordant prescribing included patient demographics and provider characteristics among others. We included 1,693 patients of which only 50% were prescribed guideline-concordant medications. In a subgroup of 843 patients with cardiorenal conditions, only 30% of prescriptions were guideline concordant. Prescribing of guideline-concordant prescriptions was more likely among pharmacists than physicians (RR 1.34, 95% CI 1.19-1.51, p<0.001) and in endocrinology practices compared to primary care practices (RR 1.41 95% CI 1.16-1.72, p=0.007). Additionally, guideline concordant prescribing increased over time (42% in 2018 vs 53% in 2019 vs 53% in 2020, p<0.001). Guideline-concordant prescribing remains low in older adults, especially among those with cardiorenal conditions. Future studies should examine barriers to prescribing guideline-concordant medications and interventions to improve guideline-concordant prescribing.

Potentially inappropriate medications in older adults with Parkinson disease before and after hospitalization for injury

BackgroundParkinson disease (PD) patients are at increased risk of serious injury, such as fall-related fractures. Prescription medications are a modifiable factor for injury risk. ObjectivesTo determine the extent to which a serious injury requiring hospitalization affects prescribing of potentially inappropriate medications (PIMs) among older adults with PD. MethodsWe conducted a quasi-experimental difference-in-difference (DID) study using 2013–2017 Medicare data. The cohort consisted of beneficiaries with PD hospitalized for injury versus for other reasons. PIMs were classified into PD and injury-relevant categories (CNS-active PIMs, PD motor symptom PIMs, PD non-motor symptom PIMs, PIMs that reduce bone mineral density). We estimated mean standardized daily doses (SDDs) of medications within each PIM category before and at 3, 6, and 12 months after hospitalization. We used generalized linear regression models to compare changes in mean SDDs for each PIM category between the injury and non-injury group at each timepoint, adjusting for biological, clinical and social determinants of health variables. ResultsBoth groups discontinued PIMs and/or reduced PIM doses after hospitalization. There were no between-group differences in mean SDD changes, after covariate adjustment, for any PIM category, except for the CNS-active PIMs category at 3 months (DID p-value = 0.00) and for the category of PIMs that reduce bone mineral density at all timepoints (DID p-values = 0.02, 0.04, 0.02 at 3, 6, and 12 months). ConclusionsSimilar patterns of PIM among persons with PD after hospitalization for serious injury versus for other reasons may represent a missed opportunity to deprescribe high-risk medications during care transitions.

Analysis of Reports Sent to the Portuguese Pharmacovigilance System and Published Literature Regarding the Safety of Metformin in the Elderly.

The first line medication for the treatment of type 2 diabetes is metformin. This study aims to investigate the safety profile of metformin and metformin combination medications in older adults using pharmacovigilance data. A literature search was used to identify published clinical studies reporting safety of metformin in older patients (age ≥ 65 years old), which were then thoroughly evaluated. Additionally, a deep analysis was performed, taking into account suspected adverse drug reaction (ADR) reports submitted to the Portuguese Pharmacovigilance System involving patients with 65 years old or older, with metformin or metformin combination as the suspected drug. The results suggest that metformin is safer when used in combination with other antidiabetics than when used in monotherapy. Metformin prolonged-release tablets have a lower incidence of adverse effects compared to treatment with immediate-release metformin tablets. The analysis of the reports showed that "gastrointestinal disorders" was one of the most common classes reported, and metformin alone was the drug most commonly associated with serious gastrointestinal reactions that resulted in hospitalization. In addition, it was the drug most commonly associated with the lactic acidosis ADR. Even though most ADRs in the reports were serious, the majority progressed to cure. According to the analysis performed, the results suggest that the patient's renal function should be considered in order to prevent ADRs associated with metformin, such as lactic acidosis. Therefore, monitoring the safety profile of metformin remains essential to prevent serious ADRs.