Antipsychotic Use in a Diverse Population With Dementia: A Retrospective Review of the National Alzheimer's Coordinating Center Database

Psychosis in Neurocognitive Disorder Among Ethnoculturally Diverse Older Persons

Background and Objectives

There is longstanding evidence that the presence of psychosis in neurocognitive disorders (NCDs) is associated with faster cognitive and functional decline. The goal of this study was to examine how clinician-diagnosed psychosis differs among ethnoracial groups with NCDs (including early onset) and to explore whether these differences exist even for those without advanced dementia.

Method

This is an IRB-approved retrospective analysis. Data are from the National Alzheimer's Coordinating Center Uniform Dataset from 42 Alzheimer's Disease Research Centers. Participants aged 40-95 years as of June 2023 with mild cognitive impairment (MCI) or dementia on baseline evaluation were included. Psychosis was defined as clinician-diagnosed visual or auditory hallucinations or delusions manifesting at the time of baseline evaluation. Ethnoracial groups were self-reported. Associations between ethnoracial groups and psychosis in NCDs were estimated using adjusted multivariable logistic regression with dichotomous measures of outcomes. Covariates included age, sex, years of education, severity of cognitive impairment (Clinical Dementia Rating scale), and presence or absence of any self-reported preexisting psychiatric illness. An analysis by age younger than 65 years was also conducted. Exploratory multivariable logistic regression analyses were performed for participants with milder stages of dementia (Clinical Dementia Rating 0.5 or 1) and for the subset of participants diagnosed with MCI.

Results

A total of 22,854 participants were included. The mean age was 73 + 9.7 years, and 50% were women. A total of 8,352 (37%) had MCI and 14,502 (63%) had dementia. In adjusted analysis, American Indian/Alaska Native (AI/AN) (OR 2.70, 1.75-4.17, p < 0.0001), Black-Latino (OR 2.33, 1.25-4.35, p = 0.0076), Other-Latino (OR 1.82, 1.42-2.33, p < 0.0001), Black, non-Latino (NL) (OR 1.66,1.47-1.87, p < 0.0001), and White-Latino (OR 1.42, 1.21-1.67, p < 0.0001) participants had greater odds of any psychotic symptom than White-NL participants. For age groups 40 to younger than 65 years, only Black-NL participants (OR 1.56, 1.13-2.14, p = 0.0064) were more likely to be diagnosed with any psychotic symptoms. For milder stages of dementia, Black-Latino (OR 3.44, 1.58-7.48, p = 0.0018), AI/AN (OR 2.73, 1.66-4.48, p < 0.0001), Other-Latino (OR 2.38, 1.72-3.30, p < 0.0001), Black-NL (OR 2.08,1.77-2.45, p < 0.0001), and White-Latino (OR 1.55, 1.23-1.95, p = 0.0002) participants had greater odds of psychosis in NCDs when compared with White-NL participants. For MCI alone, there were no significant differences.

Discussion

Black-NL, Latino, and AI/AN individuals were more likely to be diagnosed with psychosis in NCDs when compared with White-NL participants. More research is needed to explore sociocultural, psychosocial, and neuropathologic factors involved.

Neuropsychiatric Comorbidities and Psychotropic Medication Use in Medicare Beneficiaries With Dementia by Sex and Race

BACKGROUND

Neuropsychiatric symptoms affect the majority of dementia patients. Past studies report high rates of potentially inappropriate prescribing of psychotropic medications in this population. We investigate differences in neuropsychiatric diagnoses and psychotropic medication prescribing in a local US cohort by sex and race.

METHODS

We utilize Medicare claims and prescription fill records in a cohort of 100% Medicare North and South Carolina beneficiaries ages 50 and above for the year 2017 with a dementia diagnosis. We identify dementia and quantify diagnosis of anxiety, depression and psychosis using validated coding algorithms. We search Medicare claims for antianxiety, antidepressant and antipsychotic medications to determine prescriptions filled.

RESULTS

Anxiety and depression were diagnosed at higher rates in White patients; psychosis at higher rates in Black patients. (P < .001) Females were diagnosed with anxiety, depression and psychosis at higher rates than males (P < .001) and filled more antianxiety and antidepressant medications than males. (P < .001) Black and Other race patients filled more antipsychotic medications for anxiety, depression and psychosis than White patients. (P < .001) Antidepressants were prescribed at higher rates than antianxiety or antipsychotic medications across all patients and diagnoses. Of patients with no neuropsychiatric diagnosis, 11.4% were prescribed an antianxiety medication, 22.8% prescribed an antidepressant and 7.6% prescribed an antipsychotic.

CONCLUSIONS

The high fill rate of antianxiety (benzodiazepine) medications in dementia patients, especially females is a concern. Patients are prescribed psychotropic medications at high rates. This practice may represent potentially inappropriate prescribing. Patient/caregiver education with innovative community outreach and care delivery models may help decrease medication use.

Inequalities in the Quality and Safety of Post-Diagnostic Primary Care for People With Dementia: A Scoping Review

INTRODUCTION

International guidelines make recommendations for the delivery of safe, high-quality primary care for people with dementia including prescribing, personalised care planning and regular holistic reviews. It is unclear how the quality and safety of this healthcare varies with socio-economic factors.

OBJECTIVE

This scoping review aimed to understand the depth and breadth of existing evidence exploring socio-economic variation in the quality and safety of primary care for people with dementia.

METHODS

Prescribing and care planning indicators of high-quality, safe primary care were defined from guidance. Composite and proxy markers of socio-economic status (SES) were defined. EMBASE, MEDLINE, PsychInfo, The Cochrane Database of Systematic Reviews, worldcat.org and clinicaltrial.gov databases were searched. Studies in English, on human participants from 2006 onwards were eligible. Narrative synthesis was conducted. Studies explored how one or more selected indicators (anti-dementia medication and anti-psychotic prescribing, potentially inappropriate prescribing (PIP), medication review, dementia review or care planning) varied with a recognised marker of SES in people with dementia.

RESULTS

Searches identified 1980 studies after removing duplicates. 385 full texts were reviewed, with 53 eligible for inclusion (51 quantitative, 2 reviews). Most identified studies explored prescribing processes (50 quantitative, 2 reviews), with 2 exploring annual review. There was evidence of substantial disparity in quality and safety indicators in studies exploring prescribing; 20/29 (69%) of studies exploring anti-dementia medication prescribing found those with markers of lower SES were significantly less likely to receive these. 16/28 studies exploring PIP/Anti-psychotics found significant disparities in safe prescribing for those with markers of lower SES. Neither study exploring annual reviews found any significant differences across SES.

CONCLUSION

We found evidence of disparity in the quality and safety of post-diagnostic primary care for people with dementia based on SES, particularly for a range of prescribing indicators. Further work exploring inequalities in care planning and reviews for people with dementia is needed to understand existing inequalities in the quality and safety of primary care for people with dementia.

Psychotropic use for behavioral and psychological symptoms of dementia during the COVID-19 pandemic: a systematic review and meta-analysis

BACKGROUND

During the COVID-19 pandemic, the provision of quality care for behavioral and psychological symptoms in older adults with dementia may have been impeded due to physical distancing and infection control measures. Of particular concern is whether psychotropic medication use has increased despite its limited efficacy and adverse effects. This systematic review described the trajectory of psychotropic use for older adults with dementia across various settings, from community living to healthcare settings during the pandemic. Also, psychotropic use was explored in relation to patients, caregivers, and environment-related factors along with the occurrence of the pandemic.

METHODS

We conducted a comprehensive search across five databases: Embase, PubMed, PsycINFO, CINAHL, and Cochrane Library. Methodological quality was assessed using Joanna Briggs Institute Critical Appraisal tools. A random-effects model was used to estimate the pooled risk ratios (RRs) of psychotropic use in older adults with dementia, comparing the pandemic period to the pre-pandemic period. Subgroup analyses based on the class of psychotropics and sensitivity analyses also were conducted. A funnel plot and Egger's regression test were used to detect potential publication bias.

RESULTS

Of the 3,123 screened articles, 15 studies were included in this systematic review, with 10 of them being part of the meta-analysis. Our meta-analysis yielded an RR of 1.16 (95% CI = 1.05-1.26) for overall psychotropic medication use. Further subgroup analysis based on the type of psychotropic medication revealed a significantly greater prevalence in the use of antipsychotics (RR = 1.19, 95% CI = 1.08-1.30). However, no significant differences were observed in the use of anxiolytics and/or hypnotics (including benzodiazepines), antidepressants, and mood stabilizers. Among psychotropics, some studies on antipsychotic use additionally explored patients, caregivers, and environmental-related factors during the pandemic.

CONCLUSIONS

The review indicates a higher risk of psychotropic use, especially antipsychotics, during the pandemic. Nonetheless, underlying reasons for the increased psychotropic use are not fully available from the reviewed studies. Therefore, further research is needed to identify the factors driving psychotropic use during the pandemic and facilitate the development of quality improvement interventions that can be implemented to minimize inappropriate psychotropic prescribing in future pandemics.

Experiences managing behavioral symptoms among Latino caregivers of Latino older adults with dementia and memory problems: a qualitative study

BACKGROUND

Latinos are more likely than non-Latino Whites to develop dementia and be prescribed antipsychotics for dementia-related behavioral symptoms. Antipsychotics have significant risks yet are often overprescribed. Our understanding of how Latino caregivers of Latino older adults living with dementia perceive and address behavioral issues is limited, impeding our ability to address the root causes of antipsychotic overprescribing.

METHODS

We interviewed Latino older adults' caregivers and community-based organization workers serving older adults with cognitive impairment (key informants), focusing on the management of behavioral symptoms and experiences with health services.

RESULTS

We interviewed 8 caregivers and 2 key informants. Caregivers were the spouses, children, or grandchildren of the older adult living with cognitive impairment; their ages ranged from 30 to 95. We identified three categories of how caregivers learned about, managed, and coped with behavioral symptoms: caregivers often faced shortcomings with dementia care in the medical system, receiving limited guidance and support; caregivers found community organizations and senior day centers to be lifelines, as they received relevant, timely advice and support, caregivers often devised their own creative strategies to manage behavioral symptoms.

CONCLUSION

In-depth interviews suggest that the healthcare system is failing to provide support for behavioral symptoms from dementia; caregivers of Latino older adults rely on community organizations instead.

Mapping racial and ethnic healthcare disparities for persons living with dementia: A scoping review

INTRODUCTION

We set out to map evidence of disparities in Alzheimer's disease and Alzheimer's disease related dementias healthcare, including issues of access, quality, and outcomes for racial/ethnic minoritized persons living with dementia (PLWD) and family caregivers.

METHODS

We conducted a scoping review of the literature published from 2000 to 2022 in PubMed, PsycINFO, and CINAHL. The inclusion criteria were: (1) focused on PLWD and/or family caregivers, (2) examined disparities or differences in healthcare, (3) were conducted in the United States, (4) compared two or more racial/ethnic groups, and (5) reported quantitative or qualitative findings.

RESULTS

Key findings include accumulating evidence that minoritized populations are less likely to receive an accurate and timely diagnosis, be prescribed anti-dementia medications, and use hospice care, and more likely to have a higher risk of hospitalization and receive more aggressive life-sustaining treatment at the end-of-life.

DISCUSSION

Future studies need to examine underlying processes and develop interventions to reduce disparities while also being more broadly inclusive of diverse populations.

Factors Associated with Psychotropic Medication Use in People Living with Dementia in the Community: A Systematic Review and Meta-Analysis

BACKGROUND

There has been considerable focus on the use of psychotropic agents in people living with dementia in long-term care. However, psychotropic use often commences well before transitioning to long-term care.

OBJECTIVES

To synthesize the available literature to identify factors associated with psychotropic medication use in people living with dementia in the community.

METHODS

This PROSPERO-registered review reports findings from a comprehensive search of Embase, PsycINFO, and PubMed (including MEDLINE) databases according to predefined inclusion and exclusion criteria (2010-2022). Inclusion criteria were original prospective or retrospective design research papers enrolling people diagnosed with dementia utilizing a psychotropic medication and living at home. Quality and risk of bias was assessed Newcastle-Ottawa Quality Assessment Scale. The last search was conducted in November 2022. Thematic analysis was used to synthesize the emergent factors identified, and a meta-analysis was undertaken on suitable data.

RESULTS

The search identified 619 articles. After review and exclusions, 39 articles were included for synthesis, including 1,338,737 people. The majority of papers (67%) were rated as low risk of bias and corresponding good quality. Thematic analysis suggested associations between psychotropic prescribing and patient and environmental factors, with little data concerning carer and prescriber factors. Such factors included age (< 75 years, > 90 years), sex, more advanced functional decline, and living alone. Meta-analysis identified significant associations between psychotropic use and respite (temporary full-time care or hospitalization) and comorbid psychiatric illness.

CONCLUSIONS

While it is clear from this review that there remains a significant lack of clarity as to the reasons why these medications are being utilized in this population, this review provides greater insight and understanding into the context of psychotropic use. The study has highlighted an opportunity for further targeted research to be conducted and provides a much-needed context for this to occur.

PROSPERO REGISTRATION NUMBER

CRD42021286322.

Prescribing pattern of anti-psychotic medications in patients with dementia in Oman: a retrospective observational study

Background

Aggression, agitation, psychosis, and sleep disturbances are common behavioral symptoms of people with dementia and they can be distressing for both individuals and their carers. Due to their potential side effects, antipsychotic medications are recommended only for severe behavioral and psychological symptoms of dementia (BPSD). This study explores the prevalence, patterns, and associated factors with antipsychotic drug use among patients with dementia attending geriatric psychiatry services at Sultan Qaboos University Hospital (SQUH). Using a retrospective cross-sectional design, this study examines antipsychotic use among elderly patients aged 60 years or older with dementia who attended geriatric psychiatry services from January 2020 to December 2021. The following information was solicited: socio-demographic factors, type and severity of dementia, presence of co-morbid medical or mental illness, the psychotropic medications prescribed, the anti-psychotic medication use, duration of use, and the indication of use were solicited as well. A multivariate logistic regression analysis was conducted.

Results

The total prevalence of anti-psychotic use among elderly patients with dementia was 56.6%, and among them, 59% were prescribed anti-psychotics for more than 2 years. Being female, having non-Alzheimer’s dementia, experiencing severe stages of dementia, and having other medical or mental co-morbid conditions were independent predictors of antipsychotic drug use (odds ratio [OR] =1.85, confidence interval [CI] =1.04–3.30; OR=2.77, C.I. 1.52–5.04; OR=4.47, C.I. 2.18–9.18; and OR=2.54, C.I. 1.11–5.78, respectively).

Conclusions

Antipsychotic medication use is prevalent among elderly patients with dementia in Oman. The results from this study will help the policymakers and psychiatrists in Oman to plan for the use of non-pharmacological strategies as the first line of management for BPSD.

Factors Associated with Potentially Harmful Medication Prescribing in Nursing Homes: A Scoping Review

OBJECTIVES

To summarize current evidence regarding facility and prescriber characteristics associated with potentially harmful medication (PHM) use by residents in nursing homes (NHs), which could inform the development of interventions to reduce this potentially harmful practice.

DESIGN

Scoping review.

SETTING AND PARTICIPANTS

Studies conducted in the United States that described facility and prescriber factors associated with PHM use in NHs.

METHODS

Electronic searches of PubMed/MEDLINE were conducted for articles published in English between April 2011 and November 2021. PHMs were defined based on the Beers List criteria. Studies testing focused interventions targeting PHM prescribing or deprescribing were excluded. Studies were characterized by the strengths and weaknesses of the analytic approach and generalizability.

RESULTS

Systematic search yielded 1253 articles. Of these, 29 were assessed in full text and 20 met inclusion criteria. Sixteen examined antipsychotic medication (APM) use, 2 anticholinergic medications, 1 sedative-hypnotics, and 2 overall PHM use. APM use was most commonly associated with facilities with a higher proportion of male patients, younger patients, and patients with severe cognitive impairment, anxiety, depression, and aggressive behavior. The use of APM and anticholinergic medications was associated with low registered nurse staffing ratios and for-profit facility status. No studies evaluated prescriber characteristics.

CONCLUSIONS AND IMPLICATIONS

Included studies primarily examined APM use. The most commonly reported facility characteristics were consistent with previously reported indicators of poor NH quality and NHs with patient case mix more likely to use PHMs.

A National Assessment of Alzheimer Disease and Antipsychotic Medication Prescribing Among Older Adults in Ambulatory Care Settings

OBJECTIVE

The objective of this study was to assess antipsychotic prescribing within ambulatory settings in the United States among older adults with Alzheimer disease after adjusting for demographic, provider, and clinical factors.

METHODS

This cross-sectional cohort study utilized Centers for Disease Control's (CDC) National Ambulatory Medical Care Survey (NAMCS) ambulatory care data from 2014 to 2016 among visits 65 years old or older with any listed diagnosis of Alzheimer. Multivariable logistic regression analyses assessed the association between the outcome of antipsychotic prescribing after controlling for numerous demographic, provider, and clinical covariates. An extension of the Oacaxa-Blinder decomposition was used to assess observed differentials.

RESULTS

An estimated 15,471,125 ambulatory visits involving Alzheimer disease among those 65 years old or older occurred from 2014 to 2016. Antipsychotics were prescribed in 9.3% of these visits, equating to 6.81 times higher multivariable-adjusted odds relative to non-Alzheimer visits (95% confidence interval: 2.86-16.20, P <0.001). The decomposition analysis indicated that the study's predictor variables explained 15.6% of the outcome gap between Alzheimer versus non-Alzheimer visits.

CONCLUSIONS

Despite potential mortality risks with antipsychotics in adults 65 years old or older with Alzheimer disease and recommendations discouraging their use, this nationally representative study observed significantly higher odds of prescribing independent of demographic, provider, and clinical characteristics. Polypharmacy may be a risk factor that warrants continued assessment regarding the appropriateness of antipsychotic prescribing in this vulnerable population.

Deprescribing Antipsychotics Based on Real-World Evidence to Inform Clinical Practice: Safety Considerations in Managing Older Adults with Dementia

Background: Antipsychotics are commonly used in dementia patients but have potential risks that often outweigh clinical benefits. Limited studies have assessed the healthcare utilization and medical costs associated with antipsychotic use, especially those focused on cumulative days of use.

Objectives: To examine clinical and economic burdens associated with different cumulative days of antipsychotic use in older adults with dementia in the United States.

Methods: This study used Medicare Current Beneficiary Survey (2015–2017). Older (≥65 years) Medicare beneficiaries with dementia, without concurrent schizophrenia, bipolar disorder, Huntingon’s disease, or Tourette’s syndrome were included. Antipsychotic use was measured using Medicare Part D prescription events. Healthcare utilization was measured as inpatient services, outpatient services, and emergency room (ER) visits. Total medical costs were classified as Medicare and out-of-pocket costs. The logistic regression, negative binomial regression, and generalized linear model with a log link and gamma distribution were used to examine factors, healthcare utilization, and medical costs. Survey sampling weights were applied to generate national estimates.

Results: Among older adults with dementia, 13.18% used antipsychotics. Factors associated with antipsychotic use were being Hispanic (OR: 2.90; 95% CI: 1.45, 5.78), widowed (OR: 3.52; 95% CI: 1.46, 8.48), and single (OR: 3.25; 95% CI: 1.53, 6.87). Compared to non-users, antipsychotic use was associated with higher inpatient visits (IRR: 2.11; 95% CI 1.53, 2.90), ER visits (IRR: 1.61; 95% CI: 1.21, 2.13), total costs (β: 0.53; 95% CI: 0.36, 0.71), Medicare costs (β: 0.49; 95% CI 0.26, 0.72), and out-of-pocket costs (β: 0.66; 95% CI: 0.35, 0.97). With the increase in cumulative days of antipsychotic use, the magnitude of clinical and economic burdens was decreased.

Conclusion: The significant clinical and economic burdens associated with antipsychotic use, especially with short-term use, provide real-world evidence to inform clinical practice on deprescribing antipsychotics among community-dwelling geriatric dementia patients.

Ethnoracial Differences in Lewy Body Diseases with Cognitive Impairment

BACKGROUND

Increasing research focuses on ethnic differences in Alzheimer's disease, but such efforts in other neurodegenerative dementias are lacking. Currently, data on the ethnic profile of cognitively impaired persons with Lewy body disease (LBD) is limited, despite Lewy body dementia being the second most common neurodegenerative dementia.

OBJECTIVE

The study aimed to investigate presenting characteristics among ethnoracially diverse individuals with cognitive impairment secondary to LBD using the National Alzheimer's Coordinating Center database.

METHODS

Participants self-identified as African American, Hispanic, or White. We used Kruskal-Wallis and Pearson χ2 analyses to investigate group differences in presenting characteristics and linear regression to compare neuropsychological test performance.

RESULTS

Presentation age was similar between groups (median 74-75 years). Compared to Whites (n = 1782), African Americans (n = 130) and Hispanics (n = 122) were more likely to be female and single, have less educational attainment, report more cardiovascular risk factors, describe less medication use, and perform worse on select cognitive tests. Hispanics reported more depressive symptoms.

CONCLUSION

Cohorts differences highlight the need for population-based LBD studies with racial-ethnic diversity. Culturally-sensitive neuropsychological tests are needed to determine whether observed differences relate to cultural, social, testing, or disease-related factors. More research is needed regarding how social and biological factors impact LBD care among diverse populations.

Determinants Of Antipsychotic Drugs Prescription Among Community-Living Older Adults With Dementia: A Population-Based Study Using Health Information Systems In The Lazio Region, Italy

Introduction

Despite recommendations from associations of geriatric and psychiatry societies and warnings from drug agencies, antipsychotic (AP) drugs are frequently used to control behavioral and psychological symptoms of dementia. APs are associated with a range of potential adverse events, including increased risk of cerebrovascular events and mortality. Evidence suggests limited efficacy of APs for aggression and psychosis. Our objectives were to investigate patterns and predictors for prescription of APs among older adults with dementia residing in a large region of central Italy, and to identify patient characteristics related to typical or atypical APs prescribing.

Methods

This is a retrospective population-based cohort study using data from regional health information systems (HIS). We included dementia patients aged ≥65 years residing in the Lazio region. The exposure was defined as new use vs non-use of APs. Dementia patients with incident use of APs during 2015 were followed-up from the date of first prescription to the earliest among discontinuation of use, death, or end of study (December 31, 2016).

Results

We enrolled 24,735 dementia patients, 1727 (6.7%) new users and 23,008 non-users of APs. Forty-four percent of AP users were treated for more than 3 months, and among these about 60% received APs continuously for at least 12 months. Individuals using antidepressant or anti-dementia drugs had higher odds of being prescribed with APs (OR: 1.67 and OR: 1.86, respectively). Patients exposed to polypharmacy were less likely to receive APs (OR: 0.82). Cardiovascular risk factors and comorbidities were not associated with APs use. Low socio-economic position was associated with lower odds of atypical AP prescribing (OR: 0.57).

Conclusion

The study showed that a not negligible proportion of patients had a period of AP use longer than recommended by guidelines. We identified socio-demographic and clinical factors associated with first use of APs, providing insight into prescribing practices in a community setting and useful information to address areas of potential inappropriateness.

Perspectives on ethnic and racial disparities in Alzheimer's disease and related dementias: Update and areas of immediate need

Alzheimer's disease and related dementias (ADRDs) are a global crisis facing the aging population and society as a whole. With the numbers of people with ADRDs predicted to rise dramatically across the world, the scientific community can no longer neglect the need for research focusing on ADRDs among underrepresented ethnoracial diverse groups. The Alzheimer's Association International Society to Advance Alzheimer's Research and Treatment (ISTAART; alz.org/ISTAART) comprises a number of professional interest areas (PIAs), each focusing on a major scientific area associated with ADRDs. We leverage the expertise of the existing international cadre of ISTAART scientists and experts to synthesize a cross-PIA white paper that provides both a concise "state-of-the-science" report of ethnoracial factors across PIA foci and updated recommendations to address immediate needs to advance ADRD science across ethnoracial populations.