Prescription use disorders in older adults

Burden of Chronic and Heavy Opioid Use Among Elderly Community Dwellers in the U.S

Introduction

Opioid overprescribing may fuel the opioid epidemic and increase the risk of complications of opioid misuse. This study examined trends and determinants of chronic and heavy opioid use among elderly community dwellers in the U.S.

Methods

Medicare Current Beneficiary Surveys data from 2006 to 2019 were used. Common opioid medications were identified in the prescription medication files (n=47,264). Patients with Chronic users were defined as those receiving 6 or more opioid prescriptions within a year or on medication for 3 or more months, and heavy users were those having an average daily dose of 90 or more morphine milligram equivalents or 3,780 morphine milligram equivalents or more per continuous treatment episode.

Results

One in 6 elderly community dwellers ever used opioids during the study period. Chronic users were more likely to be women than men (68.9% vs 31.1%, p<0.001). Of all survey participants, 4.3% were chronic users, and 2.8% were heavy users. Among ever users, 27.7% were chronic users, and 18.1% were heavy users. The rate of opioid use rose from 12.1% in 2006, peaked at 22.8% in 2013, and decreased to 11.7% in 2019. Chronic use was 5.1%, 10.7%, and 7.6%, respectively. Heavy use was 5.5%, 10.7%, and 7.6%, respectively. However, for chronic and heavy users, there was no significant difference in the median opioid dosage and opioid duration between males and females.

Conclusions

Among elderly Medicare beneficiaries, opioid prescriptions have been decreasing since 2013. However, a substantial number of elderly people were chronic and heavy users, calling for better opioid management among them.

Age, period and cohort-related trends in prescription opioid use in the USA, 1999-2018

BACKGROUND

To provide insight into the longitudinal dynamics of opioid use throughout the overdose crisis, this study estimated the separate influences of age, period and cohort on prescription opioid use during 1999-2018 in the USA.

METHODS

Data from 10 cycles of the cross-sectional National Health and Nutrition Examination Survey were used to conduct an age-period-cohort analysis of the prevalence of prescription opioid use (n=63 500 across 1999-2018). Temporal trends were graphically visualised. The median polish approach was used to estimate age, period and cohort-related effects on prescription opioid use.

RESULTS

Prescription opioid use broadly increased across the lifespan, with steeper prevalence increases observed from young adulthood to mid-adulthood. Period-related variation was consistent with recognised nationwide declines in opioid prescribing. While there was no evidence of systematic cohort effects, compared with individuals born in 1951-1954, those born during 1963-1966 had greater prescription opioid use (prevalence ratio (PR)=1.23, 95% CI: 1.05 to 1.43), whereas the 1991-1994 and 1999-2002 cohorts had lower prescription opioid use (PR91-94=0.70, 95% CI: 0.50 to 0.98; PR99-02=0.72, 95% CI: 0.63 to 0.81).

CONCLUSION

In the USA, longitudinal trends in prescription opioid use during 1999-2018 were predominantly driven by age and period influences. The cohort of youngest baby boomers experienced greater prescription opioid use, whereas recent-born cohorts have had lower use. As the overdose crisis continues evolving, such population-level characterisations of age, period and cohort dynamics are instrumental in understanding opioid use and can inform prevention and intervention approaches by identifying population groups more likely to use opioids who, thus, may also experience related outcomes.

Stressful Life Events and Patterns of Polysubstance Use Among U.S. Late Middle-Aged and Older Adults: A Latent Class Analysis

The goals of this study were to identify patterns of polysubstance use and their associations with stressful life events among U.S. late middle-aged and older adults and examine whether gender moderates these associations. Adults aged 50 and older (N = 14,738) from the National Epidemiological Survey on Alcohol and Related Conditions-III were included. Latent class analysis was conducted to identify patterns of polysubstance use. Weighted multinomial logistic regression was estimated with a generalized structural equation model. Three different polysubstance use patterns (non-users/low substance users; cannabis and excessive alcohol users; painkiller and sedative/tranquilizer misusers) were identified. Higher levels of stressful life events were associated with patterns of polysubstance use. Gender moderated the association between stressful life events and co-misusing painkillers and sedatives/tranquilizers (p < 0.05). Substance use prevention efforts should consider aging adults' patterns of polysubstance use and associated stressful life events when designing and implementing gender-specific polysubstance use prevention interventions.

Adverse Childhood Experiences Are Associated With History of Overdose Among Patients Presenting for Outpatient Addiction Care

OBJECTIVES

Adverse childhood experiences (ACEs) are associated with mental health issues and substance use. Having a substance use disorder increases the risk of overdose (OD). Research on ACEs and risk of OD is limited. This study examined the relationship between ACE scores and a self-reported history of OD among patients in an addiction and mental health outpatient setting.

METHODS

This single-center, cross-sectional design included adults in a dual-diagnosis addiction and mental health outpatient recovery and treatment program from November 2017 to August 2020. Patients (N = 115) were assessed with self-report questionnaires, which included ACEs and history of OD. Bivariate and multivariable logistic regression was used to determine factors associated with self-reported OD history. We assessed the reliability and validity of the ACEs scale.

RESULTS

Of the 115 participants, 26 (22.6%) reported a past OD at intake. The mean ACE score for participants with an OD history, as compared with those with no history of OD, was 4.0 (standard deviation, 2.7) vs 2.3 (standard deviation, 2.2). In the multivariable regression, a higher ACE score was associated with history of OD (adjusted odds ratio, 1.23; 95% confidence interval, 1.00-1.50; P = 0.0456).

CONCLUSIONS

Given the observed association between OD and higher ACE scores, patients presenting for treatment in outpatient dual-diagnosis clinics should be screened for ACEs and OD history, providing the opportunity for treatment with trauma-informed care and/or referral to appropriate services.

Risk Factors for Substance Use across the Lifespan

Substance use is a perennial public health concern with associated health risks and economic impacts on society. In this article, we present a selective review of the epidemiological and clinical literatures on alcohol and substance use from a lifespan developmental perspective. We compare and contrast risk factors for the initiation of use and the development of a substance use disorder in adolescence, young adulthood, middle-age and later life. During adolescence, alcohol use experimentation is at its peak. Specific risk factors have been identified including trauma and parenting style that can increase the risk of substance use for teenagers. Emerging adults and college students are likely to experiment with other substances in addition to alcohol such as nicotine, marijuana, cocaine, and prescription medication such as Adderall. Middle-age and older adults with alcohol and substance use in their developmental histories may have an undiagnosed alcohol use disorder. Others will develop a late-onset substance use disorder in older age, possibly due to a dearth of social support, coping with bereavement, and medical complication. Based on Social Cognitive Theory, the roles of expectancies and self-efficacy are hypothesized to impact substance use and the risk of substance use disorder across the lifespan. Implications of the present review for future research on age-specific risk factors in alcohol use in relation to underlying developmental processes are considered.

Prescription Opioid Misuse in Older Adult Surgical Patients: Epidemiology, Prevention, and Clinical Implications

ABSTRACT

The United States and many other developed nations are in the midst of an opioid crisis, with consequent pressure on prescribers to limit opioid prescribing and reduce prescription opioid misuse. This review addresses prescription opioid misuse for older adult surgical populations. We outline the epidemiology and risk factors for persistent opioid use and misuse in older adults undergoing surgery. We also address screening tools and prescription opioid misuse prevention among vulnerable older adult surgical patients (e.g., older adults with a history of an opioid use disorder), followed by clinical management and patient education recommendations. A significant plurality of older adults engaged in prescription opioid misuse obtain opioid medication for misuse from health providers. Thus, nurses can play a critical role in identifying those older adults at a higher risk for misuse and deliver quality care while balancing the need for adequate pain management against the risk for prescription opioid misuse.

Differential patterns of opioid misuse between younger and older adults - a retrospective observational study using data from South Carolina's prescription drug monitoring program

Background: Most research on opioid misuse focuses on younger adults, yet opioid-related mortality has risen fastest among older Americans over age 55.Objectives: To assess whether there are differential patterns of opioid misuse over time between younger and older adults and whether South Carolina's mandatory Prescription Drug Monitoring Program (PDMP) affected opioid misuse differentially between the two groups.Methods: We used South Carolina's Reporting and Identification Prescription Tracking System from 2010 to 2018 to calculate an opioid misuse score for 193,073 patients (sex unknown) using days' supply, morphine milligram equivalents (MME), and the numbers of unique prescribers and dispensaries. Multivariable regression was used to assess differential opioid misuse patterns by age group over time and in response to implementation of South Carolina's mandatory PDMP in 2017.Results: We found that between 2011 and 2018, older adults received 57% (p < .01) more in total MME and 25.4 days more (p < .01) in supply, but received prescriptions from fewer doctors (-0.063 doctors, p < 01) and pharmacies (-0.11 pharmacies, p < 01) per year versus younger adults. However, older adults had lower odds of receiving a high misuse score (OR 0.88, p < .01). After the 2017 legislation, misuse scores fell among younger adults (OR 0.79, p < .01) relative to 2011, but not among older adults.Conclusion: Older adults may misuse opioids differently compared to younger adults. Assessment of policies to reduce opioid misuse should take into account subgroup differences that may be masked at the population level.

Trends in characteristics of the recipients of new prescription stimulants between years 2010 and 2020 in the United States: An observational cohort study

BACKGROUND

Stimulant prescriptions increased by 250% in the United States from 2006-2016 while diagnoses for ADHD minimally increased. There is insufficient data regarding who may be the recipients of these new stimulant prescriptions and safety of stimulants have come under scrutiny in some populations. We aim to describe trends in stimulant prescriptions across biopsychosocial patient level factors between 2010 and 2020.

METHODS

We applied a retrospective observational cohort design utilizing electronic health records from 52 healthcare organizations sourced from the TriNetX research network database in the United States. We assessed new stimulant prescriptions across biopsychosocial variables for recipients of prescriptions. We utilized linear regression to assess longitudinal trends of all participants and also conducted an age stratified logistic regression analysis.

FINDINGS

There was an increase in stimulants to people categorized as white (OR 1.24 CI 1.20-1.28), female (OR 1.28 CI 1.23-1.31), and to those with diagnosed anxiety disorders (OR 1.39 CI 1.35-1.44) as well as obesity (OR 1.34 CI 1.28-1.41). The average age of recipients increased throughout the study, and among people sixty-five and older, there was an increase in prescriptions to people with multiple cardiovascular risk factors.

INTERPRETATION

Prescription stimulant dispensing may have liberalized during the study period in some demographics as a greater number of new prescriptions were dispensed to individuals with risk of adverse outcomes (i.e. older individuals, obese individuals, and geriatric patients with CV risk factors) between 2010 and 2020. Similar trends in prescription medications were witnessed through the opioid epidemic and warrant attention given concerning trends with illicit stimulants. Additional research that investigates patient and provider motivation for stimulant prescriptions, as well as risk perception of stimulants, may be warranted.

FUNDING

This study was made possible by institutional resources at Penn State Hershey Medical Center.

Opioid painkiller dependence in a sample of elderly medical inpatients

BACKGROUND

Over the past few years, there has been a growing concern about prescription opioid misuse and dependence in the elderly. Our study aimed to investigate the prevalence of previous and current prescription opioid dependence among elderly medical inpatients recruited from a large German hospital.

METHODS

This cross-sectional study analyzed a cohort of inpatients aged 65 years and older who were assessed with a structured clinical interview. Levels of past and current dependence on opioids benzodiazepines, hypnotics, and non-opioid analgesics were assessed.

RESULTS

Of 2108 elderly inpatients admitted to the hospital during a 6-month period, 400 fulfilled the inclusion criteria and agreed to participate to the survey. Among these 400 subjects, 43 (10.8%) presented with a dependence on opioid analgesics, including 41 with current dependence and 22 (51.2%) with a de novo condition. Addiction severity was considered mild in 65.1% of cases and severe in 11.6% of cases. Tilidine and oxycodone were the most typically reported molecules.

CONCLUSIONS

Further research is warranted, to better understand the possible risk factors of prescription drug misuse, abuse, and addiction in this vulnerable population. Clinicians should be updated and informed regarding both prescription medication misuse potential and safe prescribing practices in the elderly.

Preoperative Counseling Method and Postoperative Opioid Usage: A Secondary Analysis of the PREOP Study

OBJECTIVE

The purpose of this analysis is to determine if postoperative opioid usage differs among women randomized to office or phone preoperative counseling for pelvic organ prolapse surgery.

METHODS

This was a planned exploratory analysis of the Patient Preparedness for Pelvic Organ Prolapse Surgery study, which randomized women to standardized preoperative counseling by office visit or phone call before prolapse surgery. Inclusion criteria were the completion of the assigned counseling intervention and submission of a 7-day postoperative pain and medication diary. Multivariable logistic regression was done to assess the association between counseling method and total opioid use while controlling for variables significant on univariate analysis (surgery type and county of residence).

RESULTS

There were 84 participants with postoperative data (41 office, 43 phone). Median total number of 5-mg oxycodone tablets used was higher for the office group (5 [interquartile range, 0-10]) than the phone group (0 [interquartile range, 0-2], P = 0.002). On multivariable logistic regression, women who underwent phone counseling were less likely to be in the highest third of opioid use when controlling for surgery type and county of residence (odds ratio, 0.23; P = 0.012; 95% confidence interval, 0.07-0.72). Daily pain scores and nonopioid medication use (nonsteroidal anti-inflammatory medications and acetaminophen) were similar between groups (P > 0.05).

CONCLUSIONS

Despite similar pain scores, women who received preoperative phone counseling before pelvic organ prolapse surgery had lower opioid utilization than those with office counseling. Further research is needed to determine the optimal method of preoperative counseling and its role in postoperative pain management.

Depressive symptoms in child caregivers of very old Mexican Americans

OBJECTIVE

To study the effects of disability, cognitive impairment, and neuropsychiatric disturbance among older Mexican Americans on depressive symptoms in their children caregivers.

METHODS

This study utilizes data from Wave 7 (2010-2011) of the Hispanic Established Populations for the Epidemiologic Study of the Elderly (HEPESE). The final sample included 200 adult children caregivers that provided direct personal care with activities of daily living (ADL) (e.g. bathing, toileting, dressing, etc.) to their older parents (average age = 87). We analyzed the influence of ADL disability, cognition (MMSE), and neuropsychiatric symptoms (NPI) of the care recipient on depressive symptoms of the adult child caregiver. A cross-sectional multivariable linear regression analysis was conducted to examine the effect of neuropsychiatric disturbance on caregiver depressive symptoms.

RESULTS

Presence of care recipient NPI symptoms was associated with higher depressive symptoms for caregivers. Additional characteristics associated with caregiver depressive symptoms were not being married, and higher perceived social stress. ADL disability of the care recipient, cognitive functioning of the care recipient, or caregiver health status alone did not have a significant effect on depressive symptoms of the caregiver.

CONCLUSIONS

In a Mexican American familistic culture, disability and cognitive impairment might be better tolerated by families but neuropsychiatric behavioral symptoms related to dementia may take an increased toll on family member caregivers. The need to provide respite services, mental health resources and community services for caregivers of care recipients with neuropsychiatric symptoms is of paramount importance to alleviate depressive symptoms and burden among caregivers.

Patterns of Substance Use and Associations with Mental, Physical, and Social Functioning: A Latent Class Analysis of a National Sample of U.S. Adults Ages 30-80

Trends show increased substance use among adults, yet little research on general population samples has examined differential patterns of licit and illicit substance use that can inform prevention and treatment efforts. This study identifies distinct patterns (classes) of substance use among 30- to 80-year olds, identifies demographic subgroups with the highest probability of class memberships, and compares classes on key indicators of functioning. Method: Participants (n = 1,877) were from the RAND American Life Panel. Online survey measures included current alcohol, tobacco, cannabis, and nonmedical prescription drug use, as well as mental, physical, and social functioning. Results: Latent class analysis identified four classes: "Lighter Drinking" (46.6%), "Abstaining" (33.7%), "Heavy Drinking with Cigarette/Cannabis Use" (17.1%), and "Cigarette Smoking with Prescription Drug/Cannabis Use" (2.6%). Of these classes, "Cigarette Smoking with Prescription Drug/Cannabis Use" reported the worst mental and physical functioning, and greater loneliness than the "Lighter Drinking" class. "Heavy Drinking with Cigarette/Cannabis Use" reported worse mental and physical functioning than the "Lighter Drinking" class and less social support than the "Lighter Drinking" and "Abstaining" classes. The "Abstaining" class reported consistently worse functioning than the "Lighter Drinking" class. Both polysubstance use classes were associated with younger age, less education, and lower income, and heavy drinking polysubstance use was associated with being male and unmarried. Conclusions: Although lighter drinking was the most common pattern, 20% of adults were classified into two polysubstance use classes associated with poorer functioning. Targeted efforts may be needed to reach certain subgroups of adults who are particularly susceptible to polysubstance use.

Economic burden of pediatric prescription opioid poisonings in the United States

BACKGROUND: Among the different drugs involved in pediatric exposures and poisonings, opioids are the most important, given their rise in nonmedical use. Opioid poisonings in children can result in serious symptoms or complications, including respiratory disorders such as apnea, respiratory failure, and respiratory depression; psychiatric or nervous system disorders such as agitation, seizures, and coma; and cardiac disorders such as tachycardia, bradycardia, and cardiac arrest. Opioid poisonings in children can have delayed onset of symptoms as well as severe and prolonged toxic effects. Many studies have examined the economic burden of opioid poisoning in the general population, but very little is known about the pediatric population. OBJECTIVE: To estimate the economic burden associated with pediatric prescription opioid poisonings. METHODS: This study examined opioid poisonings in pediatric patients, defined as patients aged less than 18 years, for the 2012 base year. Costs were estimated using the 2012 Nationwide Emergency Department Sample (NEDS), Kids' Inpatient Database (KID), Multiple Cause-of-Death (MCOD) file, and other published sources, while applying a societal perspective. The Bottom Up approach was used to estimate the total cost of pediatric prescription opioid poisonings. Direct costs included costs associated with emergency department (ED) visits, hospitalizations, and ambulance transports. Indirect costs were estimated using the human capital method and included productivity costs due to caregivers' absenteeism and premature mortality among children. Descriptive statistics were employed in calculating costs. RESULTS: The total costs of pediatric prescription opioid poisonings and exposure in the United States were $230.8 million in 2012. Total direct costs were estimated to be over $21.1 million, the majority resulting from prescription opioid poisoning-related inpatient stays. Total indirect (productivity) costs were calculated at $209.7 million, and 98.6% of these costs were attributed to opioid poisoning-related mortality. Pediatric prescription opioid poisoning-related ED visits, inpatient stays, and deaths were most common in patients aged 13-17 years and those in mid to large urban areas. Most were unintentional. CONCLUSIONS: Pediatric prescription opioid poisonings resulted in direct and indirect costs of $230.8 million in 2012. While these costs are low in comparison with the costs of prescription opioid poisoning in the general population, the number of pediatric poisonings represents only a small fraction of total poisonings. Quantified costs associated with pediatric prescription opioid poisonings can help decision makers to understand the economic trade-offs in planning interventions. DISCLOSURES: This research had no external funding but was funded by an unrestricted research grant made to the Department of Pharmacotherapy & Outcomes Science by kaléo Pharma, maker of a naloxone product. The authors declare no conflicts of interest or financial interests. Portions of this study were presented as an abstract at the 22nd Annual ISPOR Meeting; May 22, 2017; Boston, MA.

Let's Drink to Being Socially Active: Family Characteristics, Social Participation, and Alcohol Abuse across Mid- and Later-life

Researchers and practitioners often extol the health benefits of social relationships and social participation for older adults. Yet they often ignore how these same bonds and activities may contribute to negative health behaviors. Using data from the Wisconsin Longitudinal Study (16,065 observations from 7,007 respondents), we examined how family characteristics, family history, and social participation predicted three measures of alcohol abuse between ages 53 and 71. Results indicate that, generally, greater social participation is associated with increased drinking days per month. We also found that religious participation and having ever lived with an alcoholic are each associated with reporting possible alcohol dependence but not with alcohol consumption itself. Lastly, we identified gendered associations between marital dissolution and drinking behavior. These findings contextualize the increasing rates of alcohol abuse among older adults by emphasizing the possible negative consequences of "linked lives" on health via relationship stress and group norms.

What can we learn from the past about the future of gerontology: Using natural language processing to examine the field of gerontology

OBJECTIVES

We thematically classified all titles of eight top psychological and social gerontology journals over a period of six decades, between 1961 and February, 2020. This was done in order to provide a broad overview of the main topics that interest the scientific community over time and place.

METHODS

We used natural language processing in order to analyze the data. In order to capture the diverse thematic clusters covered by the journals, a cluster analysis, based on "topic detection" was conducted.

RESULTS

A total of 15,566 titles were classified into 38 thematic clusters. These clusters were then compared over time and geographic location. The majority of titles fell into a relatively small number of thematic clusters and a large number of thematic clusters was hardly addressed. The most frequently addressed thematic clusters were: a) Cognitive functioning, b) Long term care and formal care, c) Emotional and personality functioning, d) health and e) Family and informal care. The least frequently addressed thematic clusters were: a) Volunteering, b) Sleep, c) Addictions, d) Suicide, and e) Nutrition. There was limited variability over time and place with regard to the most frequently addressed themes.

In the Realm of Haunting Ghosts: Denying the Existence of Substance Abuse in Medicare Home Health

Purpose: There is extensive literature on the significance of substance use, misuse, and abuse among the elderly in the United States. A literature review indicates no studies on the nature, significance, or impacts of the lack of substance use and abuse coverage in Medicare home health.Method: The current study is an initial, exploratory study to address the literature gap, based on interviews of a convenience sample of 37 home care nurses between January 2013 and May 2014 in the New York City metropolitan area.Results: Nurses believe substance use and abuse occurs frequently among Medicare home health patients; substance use and abuse is not assessed and treated professionally in Medicare home health; the lack of coverage in Medicare home health results in exacerbation of existing patient physical and mental health conditions, which, in turn, worsen substance use and abuse conditions; the homebound requirement and lack of coverage of transportation and personal care assistants limits home care patients ability to obtain outpatient substance use and abuse treatment; and lack of home-based assessment and treatment contributes to increased home care readmissions, re-hospitalizations, and increased caregiver burden.Discussion: The new PDGM system, which begins January 2020, provides an ideal opportunity for representatives of the home care, social work, and substance use professional associations to assert the need to change coverage and reimbursement requirements to allow for a more evidence-based approach to assess and treat Medicare home health patients with substance use challenges.

Canadian Guidelines on Opioid Use Disorder Among Older Adults

BACKGROUND

In Canada, rates of hospital admission from opioid overdose are higher for older adults (≥ 65) than younger adults, and opioid use disorder (OUD) is a growing concern. In response, Health Canada commissioned the Canadian Coalition of Seniors' Mental Health to create guidelines for the prevention, screening, assessment, and treatment of OUD in older adults.

METHODS

A systematic review of English language literature from 2008-2018 regarding OUD in adults was conducted. Previously published guidelines were evaluated using AGREE II, and key guidelines updated using ADAPTE method, by drawing on current literature. Recommendations were created and assessed using the GRADE method.

RESULTS

Thirty-two recommendations were created. Prevention recommendations: it is key to prioritize non-pharmacological and non-opioid strategies to treat acute and chronic noncancer pain. Assessment recommendations: a comprehensive assessment is important to help discern contributions of other medical conditions. Treatment recommendations: buprenorphine is first line for both withdrawal management and maintenance therapy, while methadone, slow-release oral morphine, or naltrexone can be used as alternatives under certain circumstances; non-pharmacological treatments should be offered as an integrated part of care.

CONCLUSION

These guidelines provide practical and timely clinical recommendations on the prevention, assessment, and treatment of OUD in older adults within the Canadian context.

Assessment Protocol for Older Adults With Substance Use

This quality improvement project focuses on geriatric syndromes in patients 55 years and older admitted to a Minnesota substance abuse treatment center. Age-specific assessments identify abnormal conditions or geriatric syndromes, which prompt earlier nursing and medical interventions. Nursing staff attended a training program that focused on older adults and the use of the Fulmer SPICES tool for patients over the age of 55 years. Pretest and posttest scores showed a positive change in nursing knowledge with an increase in mean test scores of 10.32 (SD = 1.763) to 12.81 (SD = 1.545), p = .000. A 2-month preimplementation and postimplementation chart audit identified changes in assessment findings using the SPICES tool with an increase in adverse outcomes (1.03%) including sleep problems in 75.4% (n = 43) of the target population.

Motivational interviewing training with standardized patient simulation for prescription opioid abuse among older adults

PURPOSE

This study aimed to examine the effect of motivational interviewing (MI) education on the doctorate of nursing practice (DNP) students' learning outcomes.

DESIGN AND METHODS

This study used a one-group with preposttest design. The sample consisted of 31 DNP students who received an MI training, including a didactic lecture, role-playing exercise, and standardized patient simulation.

FINDINGS

Findings indicated a significant increase in students' knowledge and confidence regarding MI at both posttests compared with baseline.

PRACTICE IMPLICATIONS

Findings suggested that MI training with standardized patient simulation demonstrated preliminary promising effects on DNP students' knowledge and confidence in MI techniques to manage prescription opioid abuse among older adults. This study showed the potential to enhance the care of older adults who abuse opioids to address this problem in practice.

Opioids: Literature Findings and Recommendations

The opioid epidemic is a national public health concern. Nurses are the largest portion of the health care workforce and play a critical role in education, recognition, and referral to treatment. The purpose of the current article is to offer recommendations for nurses caring for individuals using opioid drugs. Searches for abuse, nursing, opioid, opiate, prescription, identify, and treatment were performed using Ovid Nursing, PubMed, and CINAHL databases. Articles were judged based on title, keywords, and abstract to determine inclusion. Thirty-three articles were chosen for review. Articles were chosen based on relevance to nurses' roles in care for individuals who were prescribed or misusing opioid drugs. Nurses are health care providers who can assess patients for opioid use and/or dependency. Recognizing substance use disorders early may prevent death due to opioid drug misuse. Through patient assessment, education, and treatment referrals, nurses can reduce fatal consequences that may result from opioid drug use. [Journal of Psychosocial Nursing and Mental Health Services, 56(9), 17-24.].

Opioid Antagonists for Pharmacological Treatment of Gambling Disorder: Are they Relevant?

Background:

To date, no drugs have been approved for gambling disorder. Numerous publications have described the value of opioid antagonists. Indeed, the mesocorticolimbic dopaminergic pathway has been suggested as the underlying cause of reward-seeking behaviour, and it is modulated by the opioid system.

Objective:

This study aims to evaluate the relevance of opioid antagonists for treating GD.

Method:

A systematic literature review was conducted. A search of the PubMed electronic database, PsycINFO and the Cochrane Systematic Review Database without any limits was performed.

Results:

There is little information concerning the effects of opioid antagonists on GD. The total search with “nalmefene and gambling” without any limits revealed only 11 articles. The search with “naltrexone and gambling” without any limits gener-ated 47 articles. Nevertheless, the best available data support the use of opioid antagonists, particularly in individuals with a history of alcohol use disorder or strong gambling urges.

Conclusion:

Future trials are still needed. Indeed, opioid antagonists effectiveness has been investigated in only a limited number of patients, clinical trials do not reflect the heterogeneity of GD and there is little knowledge of the predictive factors of response to treatments. Moreover, differential affinity to nalmefene for kappa receptors may be associated with a particular effect in a yet to be defined addiction phenotype. Head to head comparisons between naltrexone and nalmefene would be helpful in combining other medication or psychotherapy. The identification of subgroups of patients that are more likely to benefit from opioid antagonists should be a goal

Rising incidence of ageing opioid users within the EU wide treatment demand indicator; The Irish opioid epidemic from 1996 to 2014

BACKGROUND

Literature identifies older people who use opioids as a neglected population. Little is known about temporal changes, or about treatment demand among this population.

METHODS

The EU Treatment Demand Indicator (TDI) for Ireland (1996-2014) was analyzed for trends in new opioid treatment admissions, ageing and drug using behaviors. A Joinpoint analysis was conducted.

RESULTS

Data from 18,692 individuals entering treatment for the first time showed that while the trend of age-adjusted incidence declined between 1996 and 2014, incidence among older age groups increased, with a rising incidence not previously observed among those aged 50 years and older. Subgroups of early and late treatment entries, and early and late opioid onset were observed. The median age commencing opioid use increased by three years from 18 to 21 years (U = 326141.5, p < 0.001). The median age entering treatment increased by 11 years (from age 20 to age 31) (U = 145465.5, p < 0.001). The median opioid-using duration prior to treatment increased by 5 years (from 2 to 7 years) (U = 170807.5, p < 0.001). Half of the individuals started injecting within one year of first using opioids. The median time between first injecting and commencing treatment increased by 6 years for men and 2 years for women.

CONCLUSIONS

The study utilizes European TDI data and finds that those entering treatment in Ireland is older, are injecting longer and are taking longer to enter treatment. These findings highlight how TDI data can be used to identify hidden groups at risk of chronic harm which may require prioritizing in policy and practice.

Validation of the MedUseQ: A Self-Administered Screener for Older Adults to Assess Medication Use Problems

Background:

Older adults taking multiple prescription and nonprescription drugs are at risk for medication use problems, yet there are few brief, self-administered screening tools designed specifically for them.

Objective:

The study objective was to develop and validate a patient-centered screener for community-dwelling older adults.

Methods:

In phase 1, a convenience sample of 57 stakeholders (older adults, pharmacists, nurses, and physicians) participated in concept mapping, using Concept System® Global MAXTM, to identify items for a questionnaire. In phase 2, a 40-item questionnaire was tested with a convenience sample of 377 adults and a 24-item version was tested with 306 older adults, aged 55 and older, using Rasch methodology. In phase 3, stakeholder focus groups provided feedback on the format of questionnaire materials and recommended strategies for addressing problems.

Results:

The concept map contained 72 statements organized into 6 conceptual clusters or domains. The 24-item screener was unidimensional. Cronbach's alpha was .87, person reliability was acceptable (.74), and item reliability was high (.96).

Conclusion:

The MedUseQ is a validated, patient-centered tool targeting older adults that can be used to assess a wide range of medication use problems in clinical and community settings and to identify areas for education, intervention, or further assessment.

Cervical dystonia and substance abuse

OBJECTIVE

To investigate the prevalence of substance abuse (SA) in patients with cervical dystonia (CD) and to correlate it with prevalence of psychiatric disorders.

METHODS

Data on anxiety, depression, dystonia severity, and substance abuse were collected from ten sites participating in the Dystonia Coalition. Patients were divided into two groups according to the presence of SA, utilizing Structured Clinical Interview for DSM-4 criteria. Wilcoxon Rank-Sum test was used to analyze the difference in median scores on the questionnaires between the groups. Chi-square test was used to analyze association between opiate and benzodiazepine use and SA. Association between TWSTRS severity and SA and medication use was assessed. A two-tailed p value of < 0.05 was considered significant. SAS 9.3 (SAS Institute Inc., Cary, NC, USA) was used for all analyses.

RESULTS

Of 208 CD patients, 23 (11%) were identified with SA; 26.3% of patients with SA were on opiates compared to 7.2% of CD patients without SA (p = 0.006). Compared to non-SA patients, those experiencing SA were more likely male (88.9%; p = 0.0007), younger (median age 55; p = 0.031), and scored worse on questionnaires assessing depression (p = 0.044, p = 0.005), anxiety (p = 0.003), and dystonia psychiatric severity (p = 0.033). The median TWSTRS motor severity scores were higher in SA patients compared to non-SA patients (20 versus 16, p = 0.0339). The median TWSTRS total disability, motor, and pain scores were higher in patients on opiates than patients who were not (12 versus 8, p = 0.0071; 18.5 versus 16, p = 0.0243; 12.4 versus 6.7, p = 0.0052, respectively).

CONCLUSIONS

Potential risk factors for SA in CD patients include younger age and male gender with comorbid anxiety, depression and other psychiatric problems. Caution should be exercised when prescribing drugs with potential for abuse in these patients.

Increasing Prescription Opioid and Heroin Overdose Mortality in the United States, 1999-2014: An Age-Period-Cohort Analysis

OBJECTIVES

To assess cohort effects in prescription opioid and heroin overdose mortality in the United States.

METHODS

Using the National Center for Health Statistics' multiple-cause-of-death file for 1999 to 2014, we performed an age-period-cohort analysis of drug overdose mortality in the United States.

RESULTS

Compared with those born in 1977 and 1978, individuals born between 1947 and 1964 experienced excess risks of prescription opioid overdose death (e.g., for the 1955-1956 birth cohort, rate ratio [RR] = 1.27; 95% confidence interval [CI] = 1.09, 1.48) and of heroin overdose death (e.g., for the 1953-1954 birth cohort, RR = 1.32; 95% CI = 1.11, 1.57). Those born between 1979 and 1992 also experienced an increased risk of heroin overdose death (e.g., for the 1989-1990 birth cohort, RR = 1.23; 95% CI = 1.01, 1.50). The cohort effects were consistent between sexes.

CONCLUSIONS

Individuals born between 1947 and 1964 and between 1979 and 1992 are particularly afflicted by the opioid epidemic. Intervention programs are needed to reduce the excess overdose mortality in these specific demographic groups.

Geriatric Care Issues: An American and an International Perspective

As the global population ages, there is an opportunity to benefit from the increased longevity of a healthy older adult population. Healthy older individuals often contribute financially to younger generations by offering financial assistance, paying more in taxes than benefits received, and providing unpaid childcare and voluntary work. Governments must address the challenges of income insecurity, access to health care, social isolation, and neglect that currently face elderly adults in many countries. A reduction in disparities in these areas can lead to better health outcomes and allow societies to benefit from longer, healthier lives of their citizens.

A Systematic Review of Opioid and Benzodiazepine Misuse in Older Adults

OBJECTIVE

The authors assessed the prevalence of opioid and benzodiazepine prescription drug misuse in older adults, the risk factors associated with misuse, and age-appropriate interventions.

METHODS

Following PRISMA guidelines, a literature search of PubMed, PsycINFO, and EMBASE for peer-reviewed journal articles in English through April 2014 with updates through November 2015 was conducted for reports on misuse of prescription benzodiazepines and opioids in older adults. Relevant publications were reviewed that included participants age ≥65 years. Reference lists were manually searched for key identified articles and geriatric journals through April 2016. Information on the study design, sample, intervention, comparators, outcome, time frame, and risk of bias were abstracted for each article.

RESULTS

Of 4,932 reviewed reports, 15 were included in this systematic review. Thirteen studies assessed the prevalence of prescription drug misuse and included studies related to opioid shopping behavior, assessment of morbidity and mortality associated with opioid and/or benzodiazepine use, frequency and characteristics of opioid prescribing, frequency of substance use disorders and nonprescription use of pain relievers, and health conditions and experiences of long-term benzodiazepine users. One study identified risk factors for misuse, and one study described the effects of provider education and an electronic support tool as an intervention.

CONCLUSION

There is a dearth of high quality research on prescription drug misuse in older adults. Existing studies are heterogeneous, making it difficult to draw broad conclusions. The need for further research specific to prescription drug misuse among older adults is discussed.

Lifetime alcohol use and cognitive performance in older adults

Substance use is an important clinical issue in the older adult population. As older adults are susceptible to cognitive disorders, the intersection of the fields of substance use and cognitive neuroscience is an active area of research. Prior studies of alcohol use and cognitive performance are mixed, and inconsistencies may be due to under- or over-adjustment for confounders. This article adds to this literature by conducting a secondary analysis of self-reported lifetime history of alcohol use and cognitive performance in older adults (n = 133). It was hypothesized that current alcohol users would have poorer cognitive performance compared to never/minimal and former alcohol users. Older adult participants were classified into never/minimal alcohol users, former alcohol users, and current alcohol users. A neurocognitive battery included a global cognitive measure and individual measures of attention, memory, fluency, and executive function. A directed acyclic graph-based approach was used to select variables to be included in the multiple linear regression models. Though unadjusted analyses showed some significant associations between alcohol use and cognitive performance, all associations between alcohol use and cognitive performance were eliminated after adjusting for age, education, sex, race, and smoking pack years. Alcohol drink years were not significantly associated with cognitive performance among current and former alcohol users. These results suggest that lifetime alcohol use is not significantly associated with cognitive performance in older adults after adjustment for key confounders. Inconsistencies in prior studies may be due to uncontrolled confounding and/or unnecessary adjustment of mediators and/or colliders.

Trends in older adult nonmedical prescription drug use prevalence: Results from the 2002-2003 and 2012-2013 National Survey on Drug Use and Health

BACKGROUND

Based on projections of increasing older adult nonmedical prescription drug use (NMPDU) prevalence, we investigated whether increases had occurred in opioid, tranquilizer and stimulant NMPDU in older adults from 2002-2003 to 2012-2013, using the National Survey on Drug Use and Health (NSDUH).

METHODS

The NSDUH is a nationally representative survey of the US population, with assessments of lifetime, past-year and past 30-day NMPDU from opioids, tranquilizers and stimulants. Weighted cross-tabulations were used to compute prevalence rates, and design-based logistic regressions were used to examine change in NMPDU. Regressions controlled for gender, race/ethnicity and population density of respondent residence.

RESULTS

Across medication classes, lifetime NMPDU rates increased in all older adults and two sub-groups: those aged 50 to 64 and those 65years and older. Rates of past year opioid NMPDU also increased from 2002-2003 to 2012-2013 in all examined age ranges. Trend-level results were also found for the past-30day opioid NMPDU and past-year tranquilizer NMPDU in adults aged 50years and older.

CONCLUSIONS

The results support projections of increasing older adult NMPDU rates. As NMPDU in older adults may impart greater risk for adverse events, public health efforts are needed to reverse the increases in older adult NMPDU.

Prevalence and Detection of Prescription Opioid Misuse and Prescription Opioid Use Disorder Among Emergency Department Patients 50 Years of Age and Older: Performance of the Prescription Drug Use Questionnaire, Patient Version

BACKGROUND

Despite increased concern about prescription opioid misuse among older adults, there is limited work examining the best means to identify misuse by older adults. The goal of this investigation was to examine the performance the Prescription Drug Use Questionnaire Patient Version (PDUQp), in detecting prescription opioid misuse and prescription opioid use disorders among adult emergency department (ED) patients aged 50 years and older.

METHODS

This was a cross-sectional study of a random sample of adult ED patients, aged 50 years and older. All participants were without cognitive impairment and reported prescription opioid use within the past 30 days. We evaluated the sensitivity, specificity, predictive values, and receiver operating characteristics of the PDUQp against a standard definition of opioid misuse and DSM-5 criteria for prescription opioid use disorder.

RESULTS

Overall, 112 participants completed the study; 74 were aged 50-64 years and 38 were aged 65 years and older. Over half of the participants satisfied DSM-5 criteria for prescription opioid use disorder, with slightly less participants reporting misuse. Overall, the respective sensitivity and specificity of the PDUQp was: 44% and 79% (Receiver Operating Characteristic [ROC] area under the curve: 0.61) for prescription opioid misuse, 38% and 81% (ROC area under the curve: 0.64) for the presence of any prescription opioid use disorder, and 56% and 75% (ROC area under the curve: 0.71) for moderate to severe prescription opioid use disorder.

CONCLUSIONS

Based on this preliminary work, the PDUQp may be a viable instrument to screen for prescription opioid misuse and prescription opioid use disorder, but it likely requires modifications to optimize its predictive ability in adults over age 50 years.

Substance Addiction in Old Age

Abstract. There is a lack of studies using a structured face-to-face interview focusing on the full spectrum of substance addictions according to ICD or DSM classification systems in older patients. We therefore examined a cohort of 400 randomly selected, at least 65-year-old inpatients of a general hospital concerning addictive disorders using a well-tested structured clinical interview (DSM-IV-TR-based SKID-I). Nearly one third of this cohort was substance dependent: The 12-month prevalence rate for nicotine was 10.3% and for alcohol dependence 3%, with 24.4% and 66.7%, respectively, being severely dependent. These rates were similar to those found in the general German population of persons under 65 year of age. A fifth of the cohort was (mostly mildly) dependent on prescription drugs, remarkably including nonopioid analgesics. One case with a previous dependence on gabapentin was identified. Identification and management of addiction disorders should be considered as part of the basic geriatric assessment.

Substance use history in behavioral-variant frontotemporal dementia versus primary progressive aphasia

As older adults are prone to cognitive disorders, the interaction of the fields of substance use and misuse and cognitive neuroscience is an emerging area of research. Substance use has been reported in some subtypes of frontotemporal dementia, such as behavioral variant frontotemporal dementia. However, characterization of substance use in other subtypes of frontotemporal dementia, such as primary progressive aphasia, is unknown. The objective of this baseline analysis was to explore whether any measures of substance use history differed significantly among behavioral variant frontotemporal dementia (n = 842) and primary progressive aphasia (n = 526) in a large national dataset. The National Alzheimer's Coordinating Center's Uniform Data Set study is a national dataset that collects data on patients with various cognitive disorders and includes some questions on substance use. Each substance use variable was used as the outcome and the frontotemporal dementia subtype as the predictor. Total years smoked cigarettes, age when last smoked cigarettes, average number of packs/day smoked when participants smoked, and any recent, remote, or combined recent/remote history of alcohol abuse or drug abuse did not significantly differ between the behavioral variant frontotemporal dementia and primary progressive aphasia subtypes (all p-values > .001). A significantly greater percentage of participants smoked in the last 30 days in the behavioral variant frontotemporal dementia subtype (10.4%, n = 834) compared to the primary progressive aphasia subtype (3.3%, n = 517; p < .001). Clinical providers in both the dementia and substance use fields are encouraged to screen for and monitor substance use in all frontotemporal dementia subtypes.

The Effect of Motivational Interviewing on Prescription Opioid Adherence Among Older Adults With Chronic Pain

PURPOSE

To test the effect of office-based motivational interviewing (MI) on prescription opioid adherence in older adults with chronic pain.

DESIGN AND METHODS

Pre- and post-design was used. Thirty chronic pain patients participated in a 4-week MI in two outpatient settings.

FINDINGS

Participants demonstrated a significantly reduced risk of prescription opioid misuse, decreased substance use, increased self-efficacy, increased motivation to change, and decreased depression at both the post-test and 1-month follow-up.

PRACTICE IMPLICATION

MI can be effectively delivered in outpatient settings for older adults who are at risk for opioid misuse. Clinicians could incorporate MI techniques to enhance prescription opioid adherence.

Dependence on prescription benzodiazepines and Z-drugs among young to middle-aged patients in France

BACKGROUND

Benzodiazepines (BZD) and nonbenzodiazepines hypnotics (z-drugs) are recognized as one of the most widely prescribed medications in the world.

OBJECTIVES

The purpose of the study was to assess the BZD and z-drugs dependence in young to middle-aged outpatients who were taking BZD/z-drugs on a chronic basis, and to characterize their profile.

METHODS

This is a forward-looking cross-sectional epidemiological study. Data were collected through a semi-structured interview within a network of partner pharmacies from the Nantes area, in France. All data were obtained exclusively through patients' declarations. 212 patients (19-64 years old) were included: they were considered dependent when they answered positively to at least three items of the DSM IV. A multivariate logistic regression and a principal component analysis (PCA) were carried out to determine their profile.

RESULTS

Almost half of the patients met criteria for BZD/z-drugs dependence. The risk to develop BZD/z-drugs dependence is significantly associated with psychiatric history and with the quantity of BZD/z-drugs that is taken. A two factor concept of dependence could be identified according to the PCA: one axis with items of "tolerance" and "long term administration or higher doses", and a second axis with "concerned by treatment" and "somatic consequences". Conclusions/Importance: Among this BZD/z-drug dependent population, the two axes identified in the PCA represent two profiles of dependence: being in positive conditioning or suffering from negative consequences. Clinicians need to know them: these two clinical profiles may have an influence in terms of decision-making, especially to manage discontinuation.

Substance use in older HIV-infected patients

PURPOSE OF REVIEW

Substance use may persist throughout the life course and has a substantial impact on health outcomes globally. As HIV-infected individuals are disproportionately impacted by substance use and living longer, it is critical that providers and researchers alike understand the impact of substance use on older, HIV-infected patients and potential treatment options. To this end, we conducted a review of the literature focusing on the most commonly used substances to outline the epidemiology, health consequences, treatment options and latest research relevant to older, HIV-infected patients.

RECENT FINDINGS

Substance use impacts older, HIV-infected patients with regards to HIV-related and non-HIV-related outcomes. Counseling strategies are available for marijuana and stimulant use disorders. Brief counseling is useful alongside medications for alcohol, tobacco and opioid use disorders. Many medications for alcohol, tobacco and opioid use disorders are safe in the setting of antiretroviral therapy. Unfortunately, few interventions targeting substance use in older, HIV-infected patients have been developed and evaluated.

SUMMARY

As older, HIV-infected patients continue to experience substance use and its related health consequences, there will be a growing need for the development of safe and effective interventions, which address the complex needs of this population.

Thermal sensitivity across ages and during chronic fentanyl administration in rats

RATIONALE

Chronic pain is becoming a more common medical diagnosis and is especially prevalent in older individuals. As such, prescribed use of opioids is on the rise, even though the efficacy for pain management in older individuals is unclear.

OBJECTIVES

Thus, the present preclinical study assessed the effectiveness of chronic fentanyl administration to produce antinociception in aging rats (16, 20, and 24 months).

METHODS

Animals were tested in a thermal sensitivity procedure known to involve neural circuits implicated in chronic pain in humans. Sensitivity to heat and cold thermal stimulation was assessed during 28 days of fentanyl administration (1.0 mg/kg/day), and 28 days of withdrawal.

RESULTS

Fentanyl resulted in decreased thermal sensitivity to heat but not cold stimulation indicated by more time spent in the hot compartment relative to time spent in the cold or neutral compartments. Unlike previous findings using a hot-water tail withdrawal procedure, tolerance did not develop to the antinociceptive effects of fentanyl over a 28-day period of drug administration. The oldest animals were least sensitive, and the youngest animals most sensitive to the locomotor-stimulating effects of fentanyl. The effect on the antinociceptive response to fentanyl in the oldest group of rats was difficult to interpret due to profound changes in the behavior of saline-treated animals.

CONCLUSIONS

Overall, aging modifies the behavioral effects of opioids, a finding that may inform future studies for devising appropriate treatment strategies.

Under treatment of pain: a prescription for opioid misuse among the elderly?

OBJECTIVE

To examine the demographic, physical, and mental health characteristics; current drug use patterns; motivations for use; and diversion sources among elderly prescription opioid misusers.

DESIGN

Mixed methods design.

SETTING

Research field offices, or senior or community center offices in South Florida.

SUBJECTS

Individuals aged 60 and over reporting past 90-day prescription medication misuse; only prescription opioid misusers (N = 88) were included in the final analysis.

METHODS

The Global Appraisal of Individual Needs was the main survey instrument. A subsample of elderly reporting substantial prescription drug misuse were chosen for the in-depth interview (N = 30).

RESULTS

The mean age was 63.3. Fifty percent reported ever being admitted to a drug treatment program; several endorsed recent illicit drug use: powder cocaine and/or crack (35.2%), marijuana (30.7%), heroin (14.8%). The majority reported past year severe physical pain and discomfort (86.4%), and misuse of their primary opioid for pain (80.7%); over half (52.3%) obtained their primary opioid from their regular doctor. Qualitative data highlight the misuse of prescription opioids due to untreated or undertreated pain. Participants with primary opioid misuse for pain had over 12 times higher odds of obtaining the medication from their regular doctor (odds ratio [OR] = 12.22, P = 0.002) and had lower odds of using a dealer (OR = 0.20, P = 0.005).

CONCLUSIONS

Findings suggest that this group of elderly participants often misuse their own prescriptions for pain management. This study highlights the need to educate prescribing professionals on appropriate pain management for older adults while still being sensitive to issues of substance abuse and dependence.

The prescription drug abuse epidemic

In the United States, the nonmedical use of prescription drugs is the second most common illicit drug use, behind only marijuana. This article discusses the abuse issues with three of the most widely abused prescription drugs: opioids, central nervous system (CNS) depressants (eg, benzodiazepines), and stimulants (eg, amphetamine-dextroamphetamine and methylphenideate) in the United States. Efforts to deal with the problem are described as well.

Just say know: an examination of substance use disorders among older adults in gerontological and substance abuse journals

This article examines the extent to which studies of alcohol abuse, illicit drug use, and prescription drug abuse among older adults appear in the leading gerontological and substance abuse journals. The authors reviewed articles published in the 10 social science gerontological journals and the 10 social science substance abuse journals with the highest 5-year impact factors in PubMed from 2000 to 2010. Articles were selected that presented original research on alcohol, substance, or prescription abuse with older adults aged 50 and older; and were identified through aging and substance abuse-related Medical Subject Headings and word searches of titles and abstracts (N = 634). Full text of each article was reviewed by the authors, and consensus determined inclusion in the final sample. Of the 19,953 articles published respectively in the top 10 gerontological and substance abuse journals, 181 articles met the inclusion criteria of reporting findings related to substance use disorders among older adults. Specifically, 0.9% (102 of 11,700) of articles from the top 10 gerontology journals and 1.0% (79 of 8,253) of articles from the top 10 substance abuse journals met the criteria. Most published articles addressed alcohol misuse/abuse or polysubstance abuse with few articles addressing illicit drug use or the misuse of prescription medications. Less than 1% of articles published in the 10 gerontology journals and the 10 substance abuse journals with the highest 5-year impact scores addressed substance abuse in older adults. Practitioners treating health and/or mental health problems are at a disadvantage in accurately identifying and treating these conditions in older adult populations without a proper understanding of the role of comorbid substance use disorders.