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Factors Associated With Emergency Department Use by Patients With and Without Mental Health Diagnoses.

ABSTRACT: Importance:An association between frequent use of the emergency department (ED) and mental health diagnoses is frequently documented in the literature, but little has been done to more thoroughly understand why mental illness is associated with increased ED use. Objective:To determine which factors were associated with higher ED use in the near future among patients with and without mental health diagnoses. Design, Setting, and Participants:A retrospective case-control study of all patients presenting to the ED in California in 2013 using past ED data to predict future ED use. Data from January 1, 2012, through December 31, 2014, from California's Office of Statewide Health Planning and Development were analyzed. Main Outcomes and Measures:Factors associated with higher ED use in the year following an index visit for patients with vs without a mental health diagnosis. Results:Among the 3?446?338 individuals in the study (accounting for 7?678?706 ED visits), 44.6% (1?537?067) were male; 31.6% (1?089?043) were between the ages of 18 and 30 years, 40.3% (1?338?874) were between the ages of 31 and 50 years, and 28.1% (968?421) were between the ages of 51 and 64 years. The mean (SD) number of ED visits per patient per year was 1.69 (2.56), and 29.1% of patients (1?002?884) had at least 1 mental health diagnosis. Previous hospitalization and high rates of lagged ED visits were associated with higher future ED use. The severity of the mental health diagnosis (mild, moderate, or severe) was associated with increased ED visits (incidence rate ratio [IRR], 1.029; 95% CI, 1.02-1.04 for mild; IRR, 1.121; 95% CI, 1.11-1.13 for moderate; and IRR, 1.226; 95% CI, 1.22-1.24 for severe). Little evidence was found for interaction effects between mental health diagnoses and other diagnoses in predicting increased future ED use. Conclusions and Relevance:Certain classes of mental health diagnoses were associated with higher ED use. The presence of a mental illness diagnosis did not appear to interact with other patient-level factors in a way that meaningfully altered associations with future ED use.

SUBMITTER: Niedzwiecki MJ

PROVIDER: S-EPMC6324434 | biostudies-other | 2018 Oct

REPOSITORIES: biostudies-other

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Factors Associated With Emergency Department Use by Patients With and Without Mental Health Diagnoses.

Niedzwiecki Matthew J MJ Sharma Pranav J PJ Kanzaria Hemal K HK McConville Shannon S Hsia Renee Y RY

JAMA network open 20181005 6

<h4>Importance</h4>An association between frequent use of the emergency department (ED) and mental health diagnoses is frequently documented in the literature, but little has been done to more thoroughly understand why mental illness is associated with increased ED use.<h4>Objective</h4>To determine which factors were associated with higher ED use in the near future among patients with and without mental health diagnoses.<h4>Design, setting, and participants</h4>A retrospective case-control stud ...[more]

PMID: 30646248

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Project description:IntroductionPatients 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.MethodsOur 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.ResultsOver 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.ConclusionFrequency 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.

Project description:IntroductionMarijuana is a commonly used drug in the United States. Many states have legalized the recreational use of marijuana. The effects of marijuana on mental health are unknown.MethodsIn this prospective survey study, eligible participants included ED patients age 18 and older, who had ever used recreational marijuana. A survey instrument was developed, piloted, and revised. Data collected included reasons for marijuana use, marijuana's perceived effectiveness, and history of mental health conditions, including depression, anxiety, and suicidal thoughts.ResultsAmong 303 participants (86% response rate), the median age of first marijuana use was 16 ([IQR 14, 19], range 6-65). The most commonly cited reasons for marijuana use included recreational use (70%; n = 211), to treat anxiety (30%; n = 89), to treat pain (25%; n = 74), and to treat depression (17%; n = 51). Mental health issues were common in the study population. A majority of patients reported anxiety in the last 30 days (59%; n = 176), and a significant minority of patients reported serious depression in the last 30 days (46%; n = 137). Some patients reported suicidal thoughts in the last 30 days (9%; n = 29). Participants who used marijuana more frequently reported more days of anxiety (median 15.5, compared to 1; P = 0.001). Among participants with mental health conditions, most began using marijuana before the onset of the mental health conditions (77%, n = 167). Earlier age of starting to use marijuana was correlated with higher number of years of anxiety or tension in lifetime (r = -0.11, P = 0.05, n = 301). Perceived effects of marijuana use on mental health were variable. Most participants stated that marijuana improved their mental health (62%; n = 163), and some reported that marijuana did not improve their mental health (37%; n = 98).ConclusionsMany ED patients have used marijuana, either currently or in the past. Mental health conditions are also common, including anxiety, depression, and suicidal thoughts. Most participants reported marijuana use starting at an age under 18. Marijuana use preceded the onset of mental health conditions in the majority of participants.

Project description:BackgroundSyndromic surveillance in emergency departments (EDs) may be used to deliver early warnings of increases in disease activity, to provide situational awareness during events of public health significance, to supplement other information on trends in acute disease and injury, and to support the development and monitoring of prevention or response strategies. Changes in mental health related ED presentations may be relevant to these goals, provided they can be identified accurately and efficiently. This study aimed to measure the accuracy of using diagnostic codes in electronic ED presentation records to identify mental health-related visits.MethodsWe selected a random sample of 500 records from a total of 1,815,588 ED electronic presentation records from 59 NSW public hospitals during 2010. ED diagnoses were recorded using any of ICD-9, ICD-10 or SNOMED CT classifications. Three clinicians, blinded to the automatically generated syndromic grouping and each other's classification, reviewed the triage notes and classified each of the 500 visits as mental health-related or not. A "mental health problem presentation" for the purposes of this study was defined as any ED presentation where either a mental disorder or a mental health problem was the reason for the ED visit. The combined clinicians' assessment of the records was used as reference standard to measure the sensitivity, specificity, and positive and negative predictive values of the automatic classification of coded emergency department diagnoses. Agreement between the reference standard and the automated coded classification was estimated using the Kappa statistic.ResultsAgreement between clinician's classification and automated coded classification was substantial (Kappa = 0.73. 95% CI: 0.58 - 0.87). The automatic syndromic grouping of coded ED diagnoses for mental health-related visits was found to be moderately sensitive (68% 95% CI: 46%-84%) and highly specific at 99% (95% CI: 98%-99.7%) when compared with the reference standard in identifying mental health related ED visits. Positive predictive value was 81% (95% CI: 0.57 - 0.94) and negative predictive value was 98% (95% CI: 0.97-0.99).ConclusionsMental health presentations identified using diagnoses coded with various classifications in electronic ED presentation records offers sufficient accuracy for application in near real-time syndromic surveillance.

Project description:Background:Canadian Emergency Departments (EDs) have seen increasing use by children and youth for mental health concerns in recent years. This trend is likely a result of several complex factors, and researcher-posed potential explanations include gaps or access problems in primary care or mental health services, increasing prevalence or awareness of mental disorders and fear of potentially harmful outcomes, or expectations of need for urgent specialist care. Youth, parent, or caregiver perceptions and reasons for increasing mental health ED use may differ, and to date have been underrepresented in informing research directions. We sought to engage with youth and parents or caregivers served by a Canadian tertiary paediatric health centre to: 1) inform research directions for an emerging program of research in child and youth ED use for mental health care; and 2) develop strategies to support ongoing patient engagement in our research. Methods:Youth and parents were consulted to inform the development of a research engagement strategy. Partnerships with local community agencies facilitated supported engagement with both youth and parents. Group and individual in-person engagement opportunities were offered, as well as opportunities for written submissions and information sharing. Results:Youth and parents identified specific mechanisms to support engagement and for sharing ongoing opportunities and progress, including providing multiple platforms for engagement, offering separate opportunities for youth and parents or caregivers, and minimizing the potential for distress by ensuring appropriate supports and providing alternative opportunities for feedback, including written submissions. They identified lack of timely access to mental health care in primary care and community mental health settings, and accessibility, dependability, and familiarity of the ED as areas for further research. Conclusions:Strategies to mitigate potential concerns regarding distress, readiness for participation, literacy, and protection of privacy were highlighted as important considerations. Youth and parents were interested in ongoing research engagement through consultation and information sharing. Youth and parents identified areas of interest for research and refined the research team's proposed research directions by adding contextualizing information. Trial registration:Not applicable.

Dataset Information

Factors Associated With Emergency Department Use by Patients With and Without Mental Health Diagnoses.

Publications

Factors Associated With Emergency Department Use by Patients With and Without Mental Health Diagnoses.

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