High Emergency Department Use Research Articles

Factors associated with repeat emergency department visits for mental health care in adolescents: A scoping review

ObjectivesThe aim of this review was to identify factors associated with multiple visits to emergency department (ED) services for mental health care in adolescents. MethodsElectronic databases (MEDLINE, PsycINFO, Embase, CINAHL, Web of Science and ProQuest Dissertations & Thesis Global) were searched for evidence that presented an association between risk factors or correlates of multiple visits to the emergency departmental for mental health care by 10–24 year olds. High impact use was defined as at least one return ED visit for mental health care. Primary studies of any quantitative design were included, with no exclusions based on language or country and all possible risk factors were considered. Data were extracted and synthesised using quantitative methods; frequencies of positive, negative and null associations were summarised for categories of potential risk factors. ResultsSixty-five studies were included in the review. Most studies were from North America and reported a wide range of measures of high impact ED use, the most common being a binary indicator of multiple ED visits. Sex/gender and age were the most frequently reported risk factors. Measure of previous or concurrent access to mental health care was consistently positively associated with high impact use. Having private health insurance, compared with public or no insurance, was generally negatively associated with high impact use. Proxy measures of socioeconomic position (SEP) showed associations between lower SEP and more high impact use in a small number of studies. No other factors were consistently or uniformly associated with high impact use. ConclusionsThe review identified a substantial evidence base but due to the variability in study design and measurement of both risk factors and outcomes, no consistent risk factors emerged. More research is needed, particularly outside North America, using robust methods and high quality routinely collected data.

Characteristics for Low, High and Very High Emergency Department Use for Mental Health Diagnoses from Health Records and Structured Interviews.

Patients with mental health diagnoses (MHD) are among the most frequent emergency department (ED) users, suggesting the importance of identifying additional factors associated with their ED use frequency. In this study we assessed various patient sociodemographic and clinical characteristics, and service use associated with low ED users (1-3 visits/year), compared to high (4-7) and very high (8+) ED users with MHD. Our study was conducted in four large Quebec (Canada) ED networks. A total of 299 patients with MHD were randomly recruited from these ED in 2021-2022. Structured interviews complemented data from network health records, providing extensive data on participant profiles and their quality of care. We used multivariable multinomial logistic regression to compare low ED use to high and very high ED use. Over a 12-month period, 39% of patients were low ED users, 37% high, and 24% very high ED users. Compared with low ED users, those at greater probability for high or very high ED use exhibited more violent/disturbed behaviors or social problems, chronic physical illnesses, and barriers to unmet needs. Patients previously hospitalized 1-2 times had lower risk of high or very high ED use than those not previously hospitalized. Compared with low ED users, high and very high ED users showed higher prevalence of personality disorders and suicidal behaviors, respectively. Women had greater probability of high ED use than men. Patients living in rental housing had greater probability of being very high ED users than those living in private housing. Using at least 5+ primary care services and being recurrent ED users two years prior to the last year of ED use had increased probability of very high ED use. Frequency of ED use was associated with complex issues and higher perceived barriers to unmet needs among patients. Very high ED users had more severe recurrent conditions, such as isolation and suicidal behaviors, despite using more primary care services. Results suggested substantial reduction of barriers to care and improvement on both access and continuity of care for these vulnerable patients, integrating crisis resolution and supported housing services. Limited hospitalizations may sometimes be indicated, protecting against ED use.

Barriers and Facilitators to High Emergency Department Use Among Patients with Mental Disorders: A Qualitative Investigation.

This qualitative study explored reasons for high emergency department (ED) use (3 + visits/year) among 299 patients with mental disorders (MD) recruited in four ED in Quebec, Canada. A conceptual framework including healthcare system and ED organizational features, patient profiles, and professional practice guided the content analysis. Results highlighted insufficient access to and inadequacy of outpatient care. While some patients were quite satisfied with ED care, most criticized the lack of referrals or follow-up care. Patient profiles justifying high ED use were strongly associated with health and social issues perceived as needing immediate care. The main barriers in professional practice involved lack of MD expertise among primary care clinicians, and insufficient follow-up by psychiatrists in response to patient needs. Collaboration with outpatient care may be prioritized to reduce high ED use and improve ED interventions by strengthening the discharge process, and increasing access to outpatient care.

Profiles of Emergency Department Users with Psychiatric Disorders Related to Barriers to Outpatient Care.

Emergency department (ED) overcrowding is a growing problem worldwide. High ED users have been historically targeted to reduce ED overcrowding and associated high costs. Patients with psychiatric disorders, including substance-related disorders (SRDs), are among the largest contributors to high ED use. Since EDs are meant for urgent cases, they are not an appropriate setting for treating recurrent patients or replacing outpatient care. Identifying ED user profiles in terms of perceived barriers to care, service use, and sociodemographic and clinical characteristics is crucial to reduce ED use and unmet needs. Data were extracted from medical records and a survey was conducted among 299 ED patients from 2021 to 2022 in large Quebec networks. Cluster algorithms and comparison tests identified three profiles. Profile 1 had the most patients without barriers to care, with case managers, and received the best primary care. Profile 2 reported moderate barriers to care and low primary care use, best quality of life, and more serious psychiatric disorders. Profile 3 had the most barriers to care, high ED users, and lower service satisfaction and perceived mental/health conditions. Our findings and recommendations inform decision-makers on evidence-based strategies to address the unmet needs of these vulnerable populations.

Co-design of an integrated home-based primary care model for older adults living with frailty in Ontario, Canada

Background: The demand for home care is predicted to increase with increasing senior population and the aging-at-home phenomenon. Countries world-wide are preparing for this growing demand by making changes to their health care and social care systems. This change is much needed given that, globally, evidence shows that seniors are experiencing fragmented care particularly when they are living with frailty. To address this problem, the Central West Ontario Health Team in Canada is creating an integrated home-based primary care model for individuals 65+ who are living with frailty. At the ICIC23 Conference, I plan to share our research findings, design of the program, learnings from every phase of our co-design and change management approach, and findings from the evaluation of the pilot program. 
 Methods: The program is being co-designed (using Experienced Based Co-Design) in collaboration with patients, caregivers, primary care, hospitals, the municipality, mental health organizations, social workers, home and community care, and other community groups. To date, the co-design team has worked together in partnership to share experiences, segment the population, conduct an environmental scan of documents, and conduct quantitative and qualitative research. First, the team performed descriptive data analysis of hospitalization and community data, and then, three separate focus groups were held with local organizations, service providers, and patients and caregivers (n=60). The data that emerged from the focus groups was then thematically analyzed. The co-design team is now finalizing the program as it is set to be piloted in January 2023, at which point, the program will be evaluated (on measures such as emergency department (ED) diversion and patient experience), updated, and scaled up appropriately.
 Results: Research showed that 80% of Alternate-Level-of-Care days in the Region are among those who are 65+. A cohort of the older adult population are also high users of the ED who are being discharged home each time. Reported reasons for high ED use include isolation, confusion about the health care system, caregiver burnout, and not receiving proper care in the community in a timely manner. Our research also identified frail older adults to be particularly vulnerable. The program I will describe in the presentation will aim to address these issues. It is novel to Ontario, Canada, and will consist of a screening process to identify “at risk” older adults presenting to the ED, a comprehensive assessment, and ongoing access to an intraprofessional team (consisting of physicians, nurses, physiotherapists, nutritionists, pharmacists, and mental health professionals) that will work together on a shared care plan for each patient. All the tools are being adapted to meet a multi-faceted definition of frailty as well as local needs given that the Central West Region is one of the most ethnically diverse regions in the province. By co-designing, the aim is to implement an integrated program that matches the preferences of patients and their family-members and caregivers.
 Discussion: The learnings will be helpful to the many groups world-wide who are also planning on creating integrated co-designed primary-care based programs for diverse older adults experiencing frailty.

Impact of multimorbidity on health care utilisation in Australian older adults aged 45 years and over: a large population-based data linkage cohort study

Background: Multimorbidity (MM), co-occurrence of two or more chronic health conditions in an individual, is often used in the assessment of complex healthcare needs and their impact on health outcomes. Management of MM is complex, but little is known about the impact of MM on health care services.
 Methods: We conducted a cross-sectional study among people aged 45+ years in New South Wales, Australia, who completed baseline questionnaires in the 45 and Up Study between 2005-2009. Baseline questionnaire data were linked to hospital, primary care Medicare billings, emergency department (ED), and deaths registry data. Our outcome of interest was high use of health care services within the 3-year baseline period (averaged over the years before, during and after recruitment). People who died during that period were excluded. High use was defined as: ≥11 General Practice (GP) visits, ≥2 ED visits, and ≥2 hospital admissions. Prevalence ratios (PRs) were used to measure the impact of MM, and Poisson regression models were used to estimate adjusted and unadjusted PRs with 95% confidence intervals.
 Results: Among 251,689 participants (46.5% male, and 46.1% aged <60 years), the overall prevalence of MM was 44.1% and prevalence increased with age: 32.2% in 45-59 years, 50.3% in 60-74 years, and 63.3% in 75+ years. After adjusting for confounding, MM was associated with high service use: adjusted PR (95% CI) was 2.27 (2.06-2.51) for high hospital use, 2.02 (1.98-2.06) for high GP use, and 2.04 (1.90-2.21) for high ED use. The impact of MM on health care utilisation was higher among the younger age group.
 Conclusion: This study illustrates the burden of multimorbidity on service use within the health system. It also highlights the need to examine and rationalise service provision and utilisation across the health system to assist people with multimorbidity efficiently manage their conditions.

Emergency Department Use Among Recently Homeless Adults in a Nationally Representative Sample.

Introduction: In this study we examined the association of homelessness and emergency department (ED) use, considering social, medical, and mental health factors associated with both homelessness and ED use. We hypothesized that social disadvantage alone could account for most of the association between ED use and homelessness. Methods: We used nationally representative data from the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC-III). Emergency department use within the prior year was categorized into no use (27,674; 76.61%); moderate use (1-4 visits: 7,972; 22.1%); and high use (5 or more visits: 475; 1.32%). We used bivariate analyses followed by multivariable-adjusted logistic regression analyses to identify demographic, social, medical, and mental health characteristics associated with ED use. Results: Among 36,121 respondents, unadjusted logistic regression showed prior-year homelessness was strongly associated with moderate and high prior-year ED use (odds ratio [OR] 2.31 and 7.34, respectively, P < 0.001). After adjusting for sociodemographic factors, the associations of homelessness with moderate/high ED use diminished (adjusted OR [AOR] 1.27 and 1.62, respectively, both P < 0.05). Adjusting for medical/mental health variables, alone, similarly diminished the association between homelessness and moderate/high ED use (AOR 1.26, P < .05 and 2.07, P < 0.001, respectively). In a final stepwise model including social and health variables, homelessness was no longer significantly associated with moderate or high ED use in the prior year. Conclusion: After adjustment for social disadvantage and health problems, we found no statistically significant association between homelessness and ED use. The implications of our findings suggest that ED service delivery must address both health issues and social factors.

Association of Caregiver Depression Risk With Patient Outcomes in Parkinson Disease

Caregivers are integral to Parkinson disease (PD) care, but little information exists regarding how caregivers impact patient outcomes. To assess the association between caregivers reporting depression symptoms and patient quality of life (QOL), emergency department (ED) visits, and hospitalizations. This retrospective cohort study was conducted at 15 Parkinson's Foundation Centers of Excellence within the US. The Parkinson's Foundation Parkinson Outcomes Project registry was used to collect baseline data from January 1, 2016, to December 31, 2018, with subsequent annual study visits through July 31, 2020. Data were analyzed from August 5, 2020, to June 9, 2023. A convenience sample of 454 patients with PD and their caregivers was recruited during routine clinical visits with movement disorder specialists. Patients with a physician diagnosis of idiopathic PD who lived at home and had 1 or more follow-up study visits were included. Caregiver depression symptoms using the Center for Epidemiologic Studies Depression Scale. Patient health-related QOL (measured by the 39-item Parkinson Disease Questionnaire), number of annual ED visits, and number of annual hospitalizations were measured. The independent association between caregivers reporting depression symptoms and patient outcomes was assessed using linear mixed-effects and Poisson regression models. The a priori hypotheses were that a greater number of depression symptoms reported via the Center for Epidemiologic Studies Depression Scale would be associated with worse patient QOL and a greater number of ED visits and hospitalizations. Among 454 patient-caregiver dyads (patients: mean [SD] age, 67.3 [8.4] years; 320 men [70.5%]; caregivers: mean [SD] age, 65.9 [8.7] years; 326 women [71.8%]), the mean (SD) follow-up was 2.0 (1.4) study visits. Greater depression symptoms among caregivers were associated with worse patient QOL as measured by the Parkinson Disease Questionnaire (mean [SD] score, 33.78 [17.71], on a scale of 0-100, with higher scores indicating worse QOL, among patients with caregivers who had depression symptoms vs 24.50 [14.19] among patients with caregivers who did not have depression symptoms; β = 0.43; 95% CI, 0.28-0.58; P < .001) and more annual ED visits (β = 0.02; 95% CI, 0 to 0.04; P = .03) but not more hospitalizations (β = 0.02; 95% CI, -0.01 to 0.03; P = .10). In this cohort study, patients with PD who had caregivers at higher risk of depression were more likely to have worse QOL and higher ED use than patients who had caregivers not at higher risk of depression. Additional caregiving resources and interventions to reduce caregiver depression symptoms could potentially improve patient outcomes.

Identifying facilitators and barriers to integrated and equitable care for community-dwelling older adults with high emergency department use from historically marginalized groups

BackgroundHigh rates of emergency department (ED) use by older adults persist despite attempts to improve accessibility of appropriate and comprehensive care. Understanding the drivers of ED visits from the perspective of older adults from historically marginalized groups could help reduce ED use by patients with needs that are preventable or could have been treated in a more appropriate setting. This interpretivist, feminist study aims to explore the unmet care needs of older adults (age 65 +) with high ED use and belonging to historically marginalized groups to better understand how social and structural inequities reinforced by neoliberalism; federal and provincial governance structures and policy frameworks; and regional processes and local institutional practices, shape the experiences of these older adults, particularly those at risk of poor health outcomes based on the social determinants of health (SDH).Methods/designThis mixed methods study will employ an integrated knowledge translation (iKT) approach, starting with a quantitative phase followed by a qualitative phase. Older adults self-identifying as belonging to a historically marginalized group, having visited an ED three or more times in the past 12 months, and living in a private dwelling, will be recruited using flyers posted at two emergency care sites and by an on-site research assistant. Data obtained through surveys, short answer questions, and chart review will be used to compile case profiles of patients from historically marginalized groups with potentially avoidable ED visits. Descriptive and inferential statistical analyses and inductive thematic analysis will be conducted. Findings will be interpreted using the Intersectionality-Based Policy Analysis Framework to identify the interconnections between unmet care needs, potentially avoidable ED admissions, structural inequalities, and the SDH. Semi-structured interviews will be conducted with a subset of older adults at risk of poor health outcomes based on SDH, family care partners, and health care professionals to validate preliminary findings and collect additional data on perceived facilitators and barriers to integrated and accessible care.DiscussionExploring the linkages between potentially avoidable ED visits by older adults from marginalized groups and how their care experiences have been shaped by inequities in the systems, policies, and institutions that structure health and social care provision will enable researchers to offer recommendations for equity-focused policy and clinical practice reforms to improve patient outcomes and system integration.

Virtual Care and Emergency Department Use During the COVID-19 Pandemic Among Patients of Family Physicians in Ontario, Canada

The COVID-19 pandemic has played a role in increased use of virtual care in primary care. However, few studies have examined the association between virtual primary care visits and other health care use. To evaluate the association between the percentage of virtual visits in primary care and the rate of emergency department (ED) visits. This cross-sectional study used routinely collected administrative data and was conducted in Ontario, Canada. The sample comprised family physicians with at least 1 primary care visit claim between February 1 and October 31, 2021, and permanent Ontario residents who were alive as of March 31, 2021. All residents were assigned to physicians according to enrollment and billing data. Family physicians' virtual visit rate was the exposure. Physicians were stratified by the percentage of total visits that they delivered virtually (via telephone or video) during the study period (0% [100% in person], >0%-20%, >20%-40%, >40%-60%, >60%-80%, >80% to <100%, or 100%). Population-level ED visit rate was calculated for each stratum of virtual care use. Multivariable regression models were used to understand the relative rate of patient ED use after adjusting for rurality of practice, patient characteristics, and 2019 ED visit rates. Data were analyzed for a total of 13 820 family physicians (7114 males [51.5%]; mean [SD] age, 50 [13.1] years) with 12 951 063 patients (6 714 150 females [51.8%]; mean [SD] age, 42.6 [22.9] years) who were attached to these physicians. Most physicians provided between 40% and 80% of care virtually. A higher percentage of the physicians who provided more than 80% of care virtually were 65 years or older, female individuals, and practiced in big cities. Patient comorbidity and morbidity were similar across strata of virtual care use. The mean (SD) number of ED visits was highest among patients whose physicians provided only in-person care (470.3 [1918.8] per 1000 patients) and was lowest among patients of physicians who provided more than 80% to less than 100% of care virtually (242.0 [800.3] per 1000 patients). After adjustment for patient characteristics, patients of physicians with more than 20% of visits delivered virtually had lower rates of ED visits compared with patients of physicians who provided more than 0% to 20% of care virtually (eg, >80% to <100% vs >0%-20% virtual visits in big cities: relative rate, 0.77%; 95% CI, 0.74%-0.81%). This pattern was unchanged across all rurality of practice strata and after adjustment for 2019 ED visit rates. In urban areas, there was a gradient whereby patients of physicians providing the highest level of virtual care had the lowest ED visit rates. Findings of this study show that patients of physicians who provided a higher percentage of virtual care did not have higher ED visit rates compared with patients of physicians who provided the lowest levels of virtual care. The findings refute the hypothesis that family physicians providing more care virtually during the pandemic resulted in higher ED use.

Emergency Department Use, Hospitalization, and Their Sociodemographic Determinants among Patients with Substance-Related Disorders: A Worldwide Systematic Review and Meta-Analysis

Background: Identifying the determinants of emergency department (ED) use and hospitalization among patients with substance-related disorders (SRD) can help inform healthcare services and case management regarding their unmet health needs and strategies to reduce their acute care. Objectives: The present study aimed to identify sociodemographic characteristics, type of used drug, and risky behaviors associated with ED use and hospitalization among patients with SRD. Methods: Studies in English published from January 1st, 1995 to April 30th, 2022 were searched from PubMed, Scopus, Cochrane Library, and Web of Science to identify primary studies on ED use and hospitalization among patients with SRD. Results: Of the 17,348 outputs found, a total of 39 studies met the eligibility criteria. Higher ED use and hospitalization among patients with SRD were associated with a history of homelessness (ED use: OR = 1.93, 95%CI = 1.32–2.83; hospitalization: OR = 1.53, 95%CI = 1.36–1.73) or of injection drug use (ED use: OR = 1.34, 95%CI = 1.13–1.59; hospitalization: OR = 1.42, 95%CI = 1.20–1.69). Being female (OR = 1.24, 95%CI = 1.14–1.35), using methamphetamine (OR = 1.99, 95%CI = 1.24–3.21) and tobacco (OR = 1.25, 95%CI = 1.11–1.42), having HIV (OR = 1.70, 95%CI = 1.47–1.96), a history of incarceration (OR = 1.90, 95%CI = 1.27–2.85) and injury (OR = 2.62, 95%CI = 1.08–6.35) increased ED use only, while having age over 30 years (OR = 1.40, 95%CI = 1.08–1.81) and using cocaine (OR = 1.60, 95%CI = 1.32–1.95) increased hospitalization only among patients with SRD. Conclusions: The finding outline the necessity of developing outreach program and primary care referral for patients with SRD. Establishing a harm reduction program, incorporating needle/syringe exchange programs, and safe injection training with the aim of declining ED use and hospitalization, is likely be another beneficial strategy for patients with SRD.

Healthcare service utilization for formerly homeless veterans in permanent supportive housing: Do neighborhoods matter?

Neighborhood characteristics are associated with residents' healthcare use. However, we understand less about these relationships among formerly homeless persons, who often have complex healthcare needs, including mental health and substance use disorders. Among formerly homeless Veterans, we examined: (a) how neighborhood characteristics are associated with Veteran Health Administration (VHA) healthcare use and, (b) if these relationships varied by Veterans' level of healthcare need. We obtained data on our cohort of 711 Veterans housed through VHA's permanent supportive housing program (HUD-VASH) in 2016-2017 from VHA's Homeless Registry, VHA's electronic health records, and the U.S. Census. We studied the relationships between neighborhood characteristics (% Veteran, % in poverty, % unemployed, % using public transportation, and % vacant properties) and VA healthcare use (primary care visits, outpatient mental health visits, and "high use" of emergency departments [> 4 visits]) using mixed-effects logistic and negative binomial regression models, controlling for patient demographics. We further examined moderation by patient healthcare need (calculated from cost and clinical data). We found that veterans in neighborhoods with higher percentages of residents who (a) were Veterans or (b) used public transportation were more likely to have high emergency department use. Those in neighborhoods with higher public transportation use had more primary care visits while those in neighborhoods with more property vacancies had more outpatient mental health visits. Among those with high healthcare needs, residents of areas with more Veterans had higher emergency department use. Promoting public transportation use and social engagement with other Veterans in residential neighborhoods may influence HUD-VASH Veterans' VA healthcare use. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Disparities in Health Care Spending and Utilization Among Black and White Medicaid Enrollees

Administrative records indicate that more than half of the 80 million Medicaid enrollees identify as belonging to a racial and ethnic minority group. Despite this, disparities within the Medicaid program remain understudied. For example, we know of no studies examining racial differences in Medicaid spending, a potential measure of how equitably state resources are allocated. To examine whether and to what extent there are differences in health care spending and utilization between Black and White enrollees in Medicaid. This cross-sectional study used calendar year 2016 administrative data from 3 state Medicaid programs and included 1 966 689 Black and White Medicaid enrollees. Analyses were performed between January 28, 2021, and October 18, 2021. Self-reported race. Rates and racial differences in health care spending and utilization (including Healthcare Effectiveness Data and Information Set [HEDIS] access measures). Of 1 966 689 Medicaid adults and children (mean [SD] age, 20.3 [17.1] years; 1 119 136 [56.9%] female), 867 183 (44.1%) self-identified as non-Hispanic Black and 1 099 506 (55.9%) self-identified as non-Hispanic White. Results were adjusted for age, sex, Medicaid eligibility category, zip code, health status, and usual source of care. On average, annual spending on Black adult (19 years or older) Medicaid enrollees was $317 (95% CI, $259-$375) lower than White enrollees, a 6% difference. Among children (18 years or younger), annual spending on Black enrollees was $256 (14%) lower (95% CI, $222-$290). Adult Black enrollees also had 19.3 (95% CI, 16.78-21.84), or 4%, fewer primary care encounters per 100 enrollees per year compared with White enrollees. Among children, the differences in primary care utilization were larger: Black enrollees had 90.1 (95% CI, 88.2-91.8) fewer primary care encounters per 100 enrollees per year compared with White enrollees, a 23% difference. Black enrollees had lower utilization of most other services, including high-value prescription drugs, but higher emergency department use and rates of HEDIS preventive screenings. In this cross-sectional study of US Medicaid enrollees in 3 states, Black enrollees generated lower spending and used fewer services, including primary care and recommended care for acute and chronic conditions, but had substantially higher emergency department use. While Black enrollees had higher rates of HEDIS preventive screenings, ensuring equitable access to all services in Medicaid must remain a national priority.

Predictors of Emergency Department Use for Suicidal Behaviors among Patients with Substance-Related Disorders

Objective This study aimed to identify predictors of emergency department (ED) use for suicide ideation or suicide attempt compared with other reasons among 14,158 patients with substance-related disorders (SRD) in Quebec (Canada). Methods Longitudinal data on clinical, sociodemographic, and service use variables for patients who used addiction treatment centers in 2012–13 were extracted from Quebec administrative databases. A multinomial logistic regression was produced, comparing predictors of suicide ideation or attempts to other reasons for ED use in 2015–16. Results Patients using ED for both suicide ideation and attempt were more likely to have bipolar or personality disorders, problems related to the social environment, 4+ previous yearly outpatient consultations with their usual psychiatrist, high prior ED use, and dropout from SRD programs in addiction treatment centers in the previous 7 years, compared with those using ED for other reasons. Patients with alcohol- or drug-related disorders other than cannabis and living in the least materially deprived areas, urban territories, and university healthcare regions made more suicide attempts than those using ED for other reasons. Patients with common mental disorders, 1–3 previous yearly outpatient consultations with their usual psychiatrist, one previous treatment episode in addiction treatment centers, and those using at least one SRD program experienced more suicide ideation than patients using ED for other reasons. Conclusion Clinical variables most strongly predicted suicidal behaviors, whereas completion of SRD programs may help to reduce them. SRD services and outreach strategies should be reinforced, particularly for patients with complex issues living in more advantaged urban areas. HIGHLIGHTS Over 10% of ED visits were for suicidal behaviors among patients with SRD. ED use for suicidal behaviors was mainly associated with clinical variables. Addiction treatment centers may help reduce ED use for suicidal behaviors.

Profiles of high emergency department users with mental disorders.

This study aimed to (1) identify profiles of high emergency department (ED) users (3+ visits/year) among 5409 patients with mental disorders (MD) based on their patterns of ED use and clinical characteristics; (2) identify sociodemographic and service use correlates linked to high ED user profiles; and (3) assess risks of death in a 12-month follow-up period, controlling for sex and age. Using varied medico-administrative databases, this 5-year study collected patient data for six Quebec (Canada) ED. Latent class analysis was used to distinguish profiles of high ED users for a 3-year period, while bivariate analyses subsequently assessed associations between high ED user profiles and sociodemographic and service use correlates. Survival analysis were also applied to examine relationships between profile memberships of high ED users and risk of death in the 12 months following period of high ED use. Three profiles of high ED use were identified, Profile 1: 3-year recurrent very high ED users (10+ ED visits/year), Profile 2: 2-year recurrent high ED users, and Profile 3: 1-year high ED users. Profiles differed according to severity of health conditions, intensity of service use, particularly frequent hospitalizations, and risk of death: high in Profile 1, moderate in Profile 2, and low in Profile 3. Compared to 1-year high ED users, 3-year recurrent very high ED users and 2-year recurrent high ED users had poorer health and higher risk of death. More targeted interventions may be improved for especially recurrent high ED users and recurrent very high ED use.

Profiles, Correlates and Outcomes Among Patients Experiencing an Onset of Mental Disorder Based on Outpatient Care Received Following Index Emergency Department Visits.

This 5-year longitudinal study evaluated patients with an onset of mental disorder (MD) following index emergency department (ED) visits, in terms of (1) patient profiles based on 12-month outpatient follow-up care received, (2) sociodemographic and clinical correlates, and (3) adverse health outcomes for the subsequent 2 years. Data from administrative databases were collected for 2541 patients with an onset of MD, following discharge from Quebec ED. Latent class analysis was performed to identify patient profiles based on the adequacy of follow-up care after ED discharge. Bivariate analyses examined associations between class membership and sociodemographic and clinical correlates, high ED use (3 + visits/yearly), hospitalizations, and suicidal behaviors. Five classes of patients were identified. Class 1, the smallest, labeled "patient psychiatrist only," included mainly young patients with serious MD. Classes 2 and 3, roughly 20%, were labeled "high use of patient general practitioner (GP) and psychiatrist" and "low use of patient GP and psychiatrist," respectively. Both included patients with complex MD, but Class 2 had more women and older patients with chronic physical illnesses. The 2 largest classes were labeled "no usual patient service provider" (Class 5) and "patient GP only" (Class 4). Class 5 included more younger men with substance-related disorders, while Class 4 had the older patients living in rural areas, many with common MD and chronic physical illnesses. Class 3 patients had the poorest outcomes, followed by Classes 1 and 2, while Classes 4 and 5 had the best outcomes. Results revealed that nearly 40% of patients experiencing an onset of MD received little or no outpatient care following ED discharge. Higher severity or complexity of MD and, to a lesser extent, no or low GP follow-up may explain these adverse outcomes. More adequate, continuous care, including collaborative care, is needed for these vulnerable, high-needs patients.

Impact of an addiction medicine consult team intervention in a Canadian inner city hospital on acute care utilization: a pragmatic quasi-experimental study

BackgroundInner city patients have a higher illness burden and need for care, but experience more unmet care needs. Hospital Addiction Medicine Consult Teams (AMCTs) are a promising emerging intervention. The objective of this study was to assess the impact of a Canadian AMCT-like intervention for inner city patients on reduction in high emergency department (ED) use, hospital admission, and inpatient length of stay.MethodsUsing a community-engaged, two-arm, pre-post, longitudinal quasi-experimental study design, 572 patients reporting active substance use, unstable housing, unstable income, or a combination thereof (302 at intervention site, 270 at control sites) were enrolled. Survey and administrative health service data were collected at baseline, six months post-enrolment, and 12 months post-enrolment. Multivariable regression models tested the intervention effect, adjusting for clinically important covariables (inpatient status at enrolment, medical complexity, age, gender, Indigenous identity, shelter use, opioid use).ResultsInitial bivariable analyses demonstrated an intervention effect on reduction in admissions and length of stay, however, this effect was no longer significant after adjusting for covariables. There was no evidence of reduction in high ED use on either bivariable or subsequent multivariable analysis.ConclusionsAfter adjusting for covariables, no AMCT intervention effect was detected for reduction in high ED use, inpatient admission, or hospital length of stay. Further research is recommended to assess other patient-oriented intervention outcomes.

Racial and Ethnic Disparities in Acute Care Use for Pediatric Asthma.

Previous work has shown that asthma-related emergency department (ED) use is greatest among Black and Latine populations, but it is unknown whether health care use for exacerbations differs across settings (outpatient, ED, inpatient) and correlates with use of routine outpatient services. We aimed to measure disparities by race, ethnicity, and language in pediatric acute asthma care using data from US primary care community health centers. In an observational study using electronic health records from community health centers in 18 states, we compared non-Hispanic Black, English-preferring Latine, Spanish-preferring Latine, and non-Hispanic White children aged 3 to 17 years on visits for clinic-coded asthma exacerbations (2012-2018). We further evaluated asthma-related ED use and inpatient admissions in a subsample of Oregon-Medicaid recipients. Covariate-adjusted odds ratios (ORs) and rate ratios (RRs) were derived using logistic or negative binomial regression analysis with generalized estimating equations. Among 41,276 children with asthma, Spanish-preferring Latine children had higher odds of clinic visits for asthma exacerbation than non-Hispanic White peers (OR = 1.10; 95% CI, 1.02-1.18). Among the subsample of 6,555 children insured under Oregon-Medicaid, non-Hispanic Black children had higher odds and rates of asthma-related ED use than non-Hispanic White peers (OR = 1.40; 95% CI, 1.04-1.89 and RR = 1.49; 95% CI, 1.09-2.04, respectively). We observed no differences between groups in asthma-related inpatient admissions. This study is the first to show that patterns of clinic and ED acute-care use differ for non-Hispanic Black and Spanish-preferring Latine children when compared with non-Hispanic White peers. Non-Hispanic Black children had lower use of clinics, whereas Spanish-preferring Latine children had higher use, including for acute exacerbations. These patterns of clinic use were accompanied by higher ED use among Black children. Ensuring adequate care in clinics may be important in mitigating disparities in asthma outcomes.VISUAL ABSTRACT.

Trends in Health Service Utilization After Enrollment in an Interdisciplinary Primary Care Clinic for Veterans with Addiction, Social Determinants of Health, or Other Vulnerabilities.

BackgroundModels of interdisciplinary primary care (IPC) may improve upon traditional primary care approaches in addressing addiction and social determinants of health.ObjectiveTo compare the trends in health care utilization in the year before and after enrollment in an IPC clinic model, and explore the variations in temporal patterns for patients with histories of high emergency department (ED) use, homelessness, and/or substance use disorders (SUDs).Design and ParticipantsInterrupted time series study of utilization among IPC patients.Main MeasuresQuarterly ED, inpatient, primary care, and behavioral health visits were abstracted from administrative data before and after IPC enrollment. Negative binomial segmented regressions estimated changes in health care utilization over time. We used interactions to test for statistical differences in temporal patterns for IPC subgroups.ResultsAmong IPC patients (n=994), enrollment was associated with overall reductions in ED, inpatient, and behavioral health visits (p’s<0.001) and increases in primary care (p’s<0.001). Temporal patterns of ED visits, hospitalizations, and behavioral health differed across IPC subgroups (interaction p’s<0.001). For those with histories of high ED use (n=265), ED, inpatient, and behavioral health visits decreased after enrollment (level change incidence rate ratios [IRRs]=0.57–0.69) and continued to decline over time (post-enrollment IRRs=0.80–0.88). Among other patients with homeless experiences (n=123), there were initial declines in hospitalizations (IRR=0.33) and overall declines in behavioral health visits (level change and post-enrollment IRRs=0.46–0.94). Other patients with SUDs had initial declines in hospitalizations (IRR=0.46), and post-enrollment declines in rates of specialty SUD visits (IRR=0.92). For all patients, primary care visits initially increased (level change IIRs=2.47–1.34) then gradually declined (post-enrollment IRRs=0.92–0.92).ConclusionsAn IPC model of care reduces acute care and behavioral health service use, particularly for patients with historically high ED use. IPC models may improve patient and system outcomes of vulnerable patient populations with social, clinical, and addiction morbidities.

Heart Failure and Hospital Utilization Trajectories Before and After Hip Fracture Surgery

According to the World Dementia Council, three components are important to effectively engage a community to become dementia inclusive, 1) raising awareness and consequently decreasing stigma, 2) enabling participation, and 3) providing support—including in health and care settings. Too many times these components are separate initiatives thus limiting their effectiveness and sustainability. By applying the collective impact model and utilizing the Dementia Friends program as the link between the three, all dementia inclusive efforts can be enhanced and sustained regardless of the range of activities and approaches a community chooses to adopt. This symposium provides both evidence and examples of how to personalize and employ the Dementia Friends program to optimize the process, outcome, and impact of dementia inclusive initiatives. By engaging the entire community, awareness is raised, the structure is in place to enable action, and cross-sector collaboration will ensure continuation and sustainability of these important efforts.