PP-4 Investigation of inappropriate medication use in elderly patients in internal medicine department using TIME criteria

Studies have suggested that elderly patients do not always use medications appropriately. Investigations that have relied on prescription claim databases or clinical records focus on acquisition or prescription, and hypotheses must be made to assess actual consumption. Population survey data constitute an altemative way to study inappropriate use. To estimate the prevalence of potentially inappropriate use of medications in elderly patients in Québec based on self-reported use. Using a cross-sectional, general population, health survey in which self-reported medication use in the 2 days prior to the survey was recorded, we estimated the prevalence of inappropriate medication use in elderly patients (> or =65 y old) who responded. Two sets of published criteria were used to define inappropriate use: one to assess use of inappropriate drugs, and another to assess concomitant duplications and potential interactions. Of the 3400 patients surveyed, 6.5% had used > or =1 inappropriate drugs, 2.5% had > or =1 occurrences of potentially inappropriate duplication of medications, and 2.7% had > or =1 potential medication interactions. Concomitant use of at least 2 benzodiazepines was reported by 8.5% of respondents using these drugs. Use of > or =1 long-acting benzodiazepines was reported by 4.2% of the sample. Population health surveys are a useful tool for detecting potentially inappropriate medication use in the elderly. In particular, the high prevalence of inappropriate use of benzodiazepines signals a need for improved detection and intervention in this group.

Inappropriate use of medications has become an international cause for concern in geriatric patients, who are at high risk of drug-related morbidity. This study is the first attempt to determine the prevalence of inappropriate drug use in elderly Lebanese outpatients, using community pharmacy data, and to identify factors that predict potentially inappropriate drug intake in this population. Records of elderly patients aged > or =65 years were selected from different community pharmacies. Each patient profile was reviewed and to confirm patient record information, in-person interviews were conducted with elderly patients between November 2004 and May 2005 by qualified pharmacists. Based on a literature review describing guidelines for the inappropriate use of medications in the elderly, courses of therapy were assessed and classified as either appropriate or inappropriate. Courses of therapy that were judged inappropriate were further classified according to the specific area of inappropriate use (i.e. Beers' criteria, duplicate therapy, indication, dose, dose frequency including missing doses, duration and discontinuation of therapy, adverse effects, drug-drug and/or drug-disease interactions, and poor memory). Statistical analyses were performed to estimate the prevalence of inappropriate medication use and to identify potentially predictive factors of such use arising from patients' sociodemographic characteristics, health factors and drug regimen intake. A total of 350 elderly patient profiles were reviewed, from which 277 evaluable records were obtained. More than half (59.6%) of the patients taking drugs at the time of the study were taking at least one inappropriate medication. Inappropriate medication use was most frequently identified in terms of Beers' criteria (22.4%), missing doses (18.8%) or incorrect frequency of administration of drugs (13.0%). Factors predicting potentially inappropriate drug intake included female sex (65.7% vs 53.3% for males, p = 0.03) and alcohol intake (p = 0.007). There were also significant associations between the likelihood of use of an inappropriate drug and (i) increased number of medical illnesses (p < 0.00002); and (ii) consumption of an over-the-counter drug (OTC) and/or prescription drug (p = 0.048 and p = 0.0035, respectively). The likelihood of use of an inappropriate drug was higher again when patients concurrently used both OTC and prescription drugs (p < 0.0002). The present study is the first to describe and assess inappropriate medication use by elderly outpatients in the Lebanese community setting. With increasing availability of newer and more appropriate medications, use of potentially inappropriate drugs may decrease. Pharmacists have a major role to play in counselling patients about the importance of appropriate drug use.

Little empirical evidence exists regarding the influence and outcomes of inappropriate medication use among elderly nursing home residents. To identify the prevalence of inappropriate medication use among elderly patients in Georgia nursing homes using the Beers criteria and identify the relationship between inappropriate drug use and the likelihood of an adverse health outcome. A cohort design was used to review 1117 patient medical records in 15 Georgia nursing homes with a high risk of polypharmacy. Prevalence of inappropriate medication use among elderly patients, as defined by the Beers criteria, was estimated. The adverse health outcomes of hospitalizations, emergency department visits, or deaths were identified from Medicaid claims data. A total of 519 (46.5%) patients received at least one inappropriate medication and 143 (12.8%) patients experienced at least one adverse health outcome. Logistic regression revealed that the total number of medications taken (OR 1.139, 95% CI 1.105 to 1.173) significantly increased the likelihood of receiving an inappropriate drug, while having a diagnosis of "dementia" (OR 0.748, 95% CI 0.565 to 0.991) decreased the likelihood. Inappropriate medication use increased the likelihood of experiencing at least one adverse health outcome more than twofold (OR 2.34, 95% CI 1.61 to 3.40). Propoxyphene use alone was significantly associated with the occurrence of an adverse health outcome (OR 2.39, 95% CI 1.54 to 3.71). Inappropriate drug use was common in our study cohort. Inappropriate use of medication in the elderly, particularly propoxyphene, is associated with a higher risk of adverse health outcomes.

Background: The frequency of chronic diseases, number of drugs used, and number of medication errors have increased in the elderly. In this study, we aimed to determine the prevalence of potentially inappropriate medication (PIM) use and medication errors in elderly patients admitted to a university hospital and to identify the influencing factors. Material and Methods: In this prospective cross-sectional study, the patients’ characteristics, drug use patterns, and medication errors in the previous month were recorded in detail. Following this, PIM use was assessed according to the 2015 Beers Criteria. Results: A total of 721 elderlay patients (60.9% female and 39.1% male) were included in this study. The mean number of drugs used by the patients per day was 4.6±2.8 and the rate of polypharmacy was 49.4%. The rate of medication errors was 54.2%, that of PIM use was 30.1%, and that of adverse drug reactions was 22.5%; these rates were higher in patients with polypharmacy. The most common medication error, PIM use, and adverse drug reaction were the omission of a daily dose (36.5%), inappropriate use of proton pump inhibitors (10%), and gastrointestinal system-related symptoms (7.7%), respectively. Diabetes mellitus and depression were found to be independent factors associated with medication errors. Conclusions: In the present study, patient-related medication errors, PIM use, and adverse drug reactions were more frequently observed in elderly patients with polypharmacy. In addition, medication errors were more commonly observed in elderly with diabetes mellitus and depression.

Inappropriate medication use is a major patient safety concern, especially for the elderly population. Using explicit criteria, prior studies have found that 23.5% and 17.5% of the US community-dwelling elderly population used at least 1 of 20 potentially inappropriate medications in 1987 and 1992, respectively. To determine the prevalence of potentially inappropriate medication use in community-dwelling elderly persons in 1996, to assess trends over 10 years, categorize inappropriate medication use according to explicit criteria, and to examine risk factors for inappropriate medication use. Respondents aged 65 years or older (n = 2455) to the 1996 Medical Expenditure Panel Survey, a nationally representative survey of the US noninstitutionalized population were included. A 7-member expert panel was convened to categorize inappropriate medications. Prevalence of use of 33 potentially inappropriate medications. In 1996, 21.3% (95% confidence interval [CI], 19.5%-23.1%) of community-dwelling elderly patients in the United States received at least 1 of 33 potentially inappropriate medications. Using the expert panel's classifications, about 2.6% of elderly patients (95% CI, 2.0%-3.2%) used at least 1 of the 11 medications that should always be avoided by elderly patients; 9.1% (95% CI, 7.9%-10.3%) used at least 1 of the 8 that would rarely be appropriate; and 13.3% (95% CI, 11.7%-14.9%) used at least 1 of the 14 medications that have some indications but are often misused. Use of some inappropriate medications declined between 1987 and 1996. Persons with poor health and more prescriptions had a significantly higher risk of inappropriate medication use. Overall inappropriate medication use in elderly patients remains a serious problem. Despite challenges in using explicit criteria for assessing inappropriate medications for elderly patients, such criteria can be applied to population-based surveys to identify opportunities to improve quality of care and patient safety. Enhancements of existing data sources to include dosage, duration, and indication may augment national improvement and monitoring efforts.

Inappropriate medication use is a major problem for the elderly. Although increasing attention has been paid to inappropriate prescription medication use, most previous research has been limited to the investigation of prevalence and trends. Few studies provide the empirical evidence for the adverse effect of inappropriate medication use on health outcomes at the national level. This study is the first attempt to assess the relationship between inappropriate prescription use and health status for the elderly in the United States. Based on the 1996 Medical Expenditure Panel Survey, inappropriate medication use in a national representative elderly population was first identified using Beers criteria. A survey type of ordered probit model was then estimated to quantify the effect of inappropriate drug use on patient self-perceived health status measured using a five-point scale (poor, fair, good, very good, and excellent). After controlling for a set of possible confounding factors, it was found that individuals using inappropriate medications in Round 1 were more likely than those not using inappropriate medications to report poorer health status in Round 2. Other risk factors for poor health status include a higher number of prescriptions, being black, having low education, and having one or more chronic diseases. This study provides strong evidence of a significant adverse effect of inappropriate medication use on patient health status. These findings lend partial support to the use of Beers criteria in assessing the quality of prescribing and the appropriateness of medication use in the elderly population.

Inappropriate drug use is one of the risk factors for adverse drug reactions in the elderly. We hypothesised that, in elderly patients, geriatricians are more aware of potentially inappropriate medications (PIMs) and may replace or stop PIMs more frequently compared with internists. We therefore evaluated and compared the prevalence of PIMs as well as anticholinergic drug use throughout hospital stay in elderly patients admitted to a medical or geriatric ward. In this retrospective cross-sectional study, 800 patients aged > or =65 years admitted to a general medical or geriatric ward of a 700-bed teaching hospital in Switzerland during 2004 were included. PIMs were identified using the Beers criteria published in 2003. The prevalence of anticholinergic drug use was assessed based on drug lists published in the literature. The prevalence of use of PIMs that should generally be avoided was similar in medical and geriatric inpatients both at admission (16.0% vs 20.8%, respectively; p = 0.08) and at discharge (13.3% vs 15.9%, respectively; p = 0.31). In contrast to medical patients, the reduction in the prevalence of use of PIMs between admission and discharge in geriatric patients reached statistical significance (p < 0.05). Overall, the three most prevalent inappropriate drugs/drug classes were amiodarone, long-acting benzodiazepines and anticholinergic antispasmodics. At admission, the prevalence of use of PIMs related to a specific diagnosis was not significantly different between patients hospitalised to a medical or a geriatric ward (14.0% vs 17.5%, respectively; p = 0.17), as compared with the significant difference evident at hospital discharge (11.7% vs 23.7%, respectively; p < 0.001). This was largely because of a higher prescription rate of platelet aggregation inhibitors in combination with low-molecular-weight heparins and benzodiazepines in patients with a history of falls and syncope. The proportions of patients taking anticholinergic drugs in medical and geriatric patients at admission (13.0% vs 17.5%, respectively; p = 0.08) and discharge (12.2% vs 16.5%, respectively; p = 0.10) were similar. Inappropriate drug use as defined by the Beers criteria was common in both medical and geriatric inpatients. Compared with internists, geriatricians appear to be more aware of PIMs that should generally be avoided, but less aware of PIMs related to a specific diagnosis, and of the need to avoid anticholinergic drug use. However, the results of this study should be interpreted with caution because some of the drugs identified as potentially inappropriate may in fact be beneficial when the patient's clinical condition is taken into consideration.

Elderly patients taking inappropriate drugs are at increased risk for adverse outcomes. We investigated the prevalence of inappropriate drug use and its predisposing factors in community-residing older persons. We conducted in-home interviews with 414 subjects aged 75 years and older living in the community of Santa Monica, Calif. Inappropriate medication use was evaluated using explicit criteria developed through a modified Delphi consensus process. These criteria identified drugs that should generally be avoided in elderly community-residing subjects regardless of dosage, duration of therapy, or clinical circumstances. Based on these conservative criteria, 14.0% of the subjects were using at least one inappropriate drug. The most common examples were long-acting benzodiazepines, persantine, amitriptyline, and chlorpropamide. Subjects using three or more prescription drugs, compared with one or two, were more likely to be taking an inappropriate medication (odds ratio, 3.9; 95% confidence interval, 1.9 to 7.9). Furthermore, subjects with depressive symptoms had a higher risk of receiving inappropriate medications than nondepressive subjects (odds ratio, 2.2; 95% confidence interval, 1.1 to 4.1). Inappropriate drug use is a common problem in community-residing older persons. The risk of inappropriate drug use is increased in patients taking multiple medications and in patients with depressive symptoms.

Few studies have identified predictors of inappropriate use of medications and medical tests in bronchiolitis. This study aimed to look for potential factors associated with the inappropriate use of medications and tests in bronchiolitis. A retrospective study that included all infants under two years of age in tertiary center admitted due to Bronchiolitis from January 2015 to December 2018. We defined a composite score as the main outcome variable. 1930 patients were included. The most prescribed medications were nebulized hypertonic saline in 1789 patients (92.6%), albuterol (56%), and β-lactam antibiotics (26.4%). The medical tests more commonly ordered were hemogram (95.9%), chest X-rays (92.2%) and C-reactive protein (79.8%). After controlling for potential confounders, it was found that the length of hospital stay increases the risk of the inappropriate use of medications and tests (OR 1.29; CI 95% 1.01-1.65), whereas fever (OR 0.22; CI 95% 0.06-0.71) and leukocytosis (> 15,000/μL) (OR 0.09; CI 95% 0.03-0.32) at admission decrease the risk of the inappropriate use of medications and tests. Inappropriate use of diagnostic tests and drugs for bronchiolitis was a highly prevalent outcome in our population. Patients with longer hospitalizations, absence of fever and a normal white blood cell count at admission, were at increased risk of inappropriate use of medications and medical tests.

Instruments to Identify Prescription Medication Misuse, Abuse, and Related Events in Clinical Trials: An ACTTION Systematic Review

Musculoskeletal disorders are frequently associated with pain in older adults, and the use of inappropriate analgesics drugs is common. Understanding the patterns and factors of inappropriate analgesic use may help reduce its prevalence among older adults with chronic musculoskeletal pain. This cross-sectional study evaluated 215 older adults aged ≥ 60 years who experienced chronic musculoskeletal pain and used oral medication to relieve pain within the previous 3 months. Participants were recruited through home visits using the community health register in Ban Phru, Hat Yai District, Songkhla Province (Southern Thailand) between July and December 2023. Analgesic use was determined by directly inspecting the drugs that participants were taking within the previous 3 months, regardless of whether they were prescribed or self-purchased. The name, dose, and source of each medication were recorded and cross-checked with the 2023 American Geriatrics Society Beers Criteria to identify potentially inappropriate drugs. This approach enabled differentiation into three patterns of inappropriate analgesic drug use: potentially inappropriate medication use, overtreatment, and undertreatment. Factors associated with the inappropriate use of analgesic drugs were analysed using multivariate logistic regression analysis. Inappropriate analgesic drug use was prevalent in 66.5%. Regarding the prevalence rates by pattern, potentially inappropriate, overtreatment, and undertreatment were prevalent in 71.3%, 24.5%, and 33.6%, respectively. Non-prescribed polypharmaceutical packs (adjusted odds ratio [aOR] [95% confidence interval {CI}] = 11.45 [3.32, 72.15], P < 0.001) and pain interfering with enjoyment of life (aOR [95% CI] = 1.16 [1.04, 1.30], P = 0.007) were significantly associated with inappropriate analgesic drug use. Inappropriate analgesic use was common, affecting 66.5% of community-dwelling older adults with chronic musculoskeletal pain. Non-prescribed polypharmaceutical packs and pain interference were significant predictors of inappropriate use. These findings underscore the influence of inappropriate self-medication, suggesting the need for greater attention from healthcare providers to promote safe and rational analgesic use in this population.

Use of inappropriate medications by the elderly is a public health concern with potentially serious health consequences. Research indicates relatively high rates of inappropriate prescription drug usage for older whites and African Americans. However, rates for older Mexican Americans are unknown. To examine the prevalence and predictors of inappropriate prescription medication use by older Mexican Americans. A cross-sectional study of 3050 Mexican Americans aged > or =65 years living in the southwestern US was conducted. In-home interviews in 1993 and 1994 assessed prescription medication use. Descriptive statistics and logistic regression models were used to estimate prevalence and risk of inappropriate prescription drug use. Approximately 12% (n = 365) of the sample had used at least 1 of 32 potentially inappropriate prescription medications within 2 weeks of the baseline assessment. Four drugs, chlorpropamide, propoxyphene, amitriptyline, and dipyridamole, accounted for 54% of all inappropriate prescribing. Unmarried subjects, those with >/=1 chronic diseases, high depressive symptoms, frequent physician visits, and combined Medicaid and Medicare insurance were more likely to have used at least 1 of the 32 potentially inappropriate drugs. The prevalence of inappropriate medication use is lower in older Mexican Americans than in similar white and African American populations. More studies are needed on the pattern of inappropriate prescribing over time and on intervention programs to reduce potentially adverse health outcomes in older Mexican Americans most at risk.

Inappropriate drug use in hospitalized elderly patients of medicine and cardiology departments at a tertiary care hospital of Northeast India

Objectives: Polypharmacy is an important condition that causes adverse outcomes such as drug-drug interactions, falls, increased hospitalizations and mortality.In our study, we aimed to evaluate polypharmacy and inappropriate medication use according to two different criteria in home care patients.Materials and Methods: Our observational and cross-sectional, single-center study included all patients who receive home health care service from our unit and agree to participate.A face-to-face information form was carried out to measure the patients' socio-demographic characteristics, drug use, and level of knowledge about the use of drugs.Inappropriate medication use was evaluated using Beers and STOPP criteria.Results: 179 individuals, most of whom were female (n=124; 69.2%), participated in this study.The mean age was 83,54 7.53.The mean number of chronic diseases was 2.14.The average number of drugs was 5.80 3.18.There was a relationship between polypharmacy and high education level and being married (p=0.005;p=0.007).There was a statistically significant relationship between the number of chronic diseases and the number of drugs used (p>0.001).Inappropriate medication use was present in 66 (36.8%) patients and the most frequently used inappropriate drugs were antipsychotics (n=38; 21.2%) according to Beers criteria.According to the STOPP criteria, inappropriate medication use was present in 33 (18.4%) patients, and the most common inappropriate drug use was NSAIDs (n=5; 2.7%). Conclusion:Rates of polypharmacy and inappropriate medication use according to both criteria were found to be high.Physicians should plan the drugs used in this group carefully.

Psychotropic medications are an important treatment approach to mental health disorders; such disorders are common in the elderly population. Elderly patients are more likely to experience adverse effects from these agents than their younger counterparts due to age-related changes in pharmacodynamic and pharmacokinetic parameters. Because of these factors, inappropriate use of psychotropic medications in elderly patients has become a focus of concern. In general an agent is considered inappropriate if the risk associated with its use exceeds its benefit. Implicit and explicit criteria for inappropriate use of medications in the elderly have been created and include psychotropic agents. These criteria vary in their make-up but the explicit criteria tend to agree that amitriptyline, doxepin, and benzodiazepines that have long half-lives are not appropriate. Although explicit inappropriate medication criteria have been in existence since 1991, elderly patients continue to receive inappropriate psychotropic medications. A wide array of factors may be responsible for this practice. Provider-related causes include deficits in knowledge, confusion due to the lack of a consensus on the inappropriate psychotropic criteria, difficulties in addressing an inappropriate medication started by a previous provider, multiple prescribers and pharmacies involved in the care of a patient, negative perceptions regarding aging, and cost issues. Patients may contribute to the problem by demanding an inappropriate medication. Finally, the healthcare setting may inadvertently contribute to inappropriate prescribing by such policies as restrictive formularies or lack of reimbursement for pharmacists' clinical services. Successful approaches to optimising prescribing have been either educational or administrative. Educational approaches (e.g. one-on-one sessions, academic detailing) seek to influence decision making, while administrative approaches attempt to enforce policies to curtail the undesired practice. The US Omnibus Budget Reconciliation Act of 1987, which improved psychotropic medication use in long-term care, is an excellent example of administrative intervention. More research specifically focused on the causes of inappropriate psychotropic medication use and methods to avoid this practice is needed before targeted recommendations can be made.