California Emergency Department Research Articles

Diabetes and Mental Health in California Emergency Department Visit

Diabetes and Mental Health in California Emergency Department Visit

Emergency Department Access to Buprenorphine for Opioid Use Disorder

Although substantial evidence supports buprenorphine for treatment of opioid use disorder (OUD) in controlled trials, prospective study of patient outcomes in clinical implementation of emergency department (ED) buprenorphine treatment is lacking. To examine the association between buprenorphine treatment in the ED and follow-up engagement in OUD treatment 1 month later. This multisite cohort study was conducted in 7 California EDs participating in a statewide implementation project to improve access to buprenorphine treatment. The study population included ED patients aged at least 18 years identified with OUD between April 1, 2021, and June 30, 2022. Data analysis was performed in October 2023. All participants were offered buprenorphine treatment for OUD (either in ED administration, prescription, or both), the uptake of which was examined as the exposure of interest. The primary outcome was engagement in OUD treatment 30 days after the ED visit, determined by patient report or clinical documentation. The association of ED buprenorphine treatment with subsequent OUD treatment engagement was estimated using hierarchical generalized linear models. This analysis included 464 ED patients with OUD. Their median age was 36.0 (IQR, 29.0-38.7) years, and most were men (343 [73.9%]). With regard to race and ethnicity, 64 patients (13.8%) self-identified as non-Hispanic Black, 183 (39.4%) as Hispanic, and 185 as non-Hispanic White (39.9%). Most patients (396 [85.3%]) had Medicaid insurance, and more than half (262 [57.8%]) had unstable housing. Self-reported fentanyl use (242 [52.2%]) and a comorbid mental health condition (328 [71.5%]) were common. Interest in buprenorphine treatment was high: 398 patients (85.8%) received buprenorphine treatment; 269 (58.0%) were administered buprenorphine in the ED and 339 (73.1%) were prescribed buprenorphine. With regard to OUD treatment engagement at 30 days after the ED visit, 198 participants (49.7%) who received ED buprenorphine treatment remained engaged compared with 15 participants (22.7%) who did not receive ED buprenorphine treatment. An association of ED buprenorphine treatment with subsequent OUD treatment engagement at 30 days was observed (adjusted risk ratio, 1.97 [95% CI, 1.27-3.07]). The findings of this cohort study suggest that among patients with OUD presenting to EDs implementing low-threshold access to medications for OUD, buprenorphine treatment was associated with a substantially higher likelihood of follow-up treatment engagement 1 month later. Future research should investigate techniques to optimize both the uptake and effectiveness of buprenorphine initiation in low-threshold settings such as the ED.

Community-acquired Staphylococcus aureus skin and soft tissue infection risk assessment using hotspot analysis and risk maps: the case of California emergency departments

BackgroundCommunity-acquired Staphylococcus aureus (CA-Sa) skin and soft tissue infections (SSTIs) are historically associated with densely populated urban areas experiencing high poverty rates, intravenous drug use, and homelessness. However, the epidemiology of CA-Sa SSTIs in the United States has been poorly understood since the plateau of the Community-acquired Methicillin-resistant Staphylococcus aureus epidemic in 2010. This study examines the spatial variation of CA-Sa SSTIs in a large, geographically heterogeneous population and identifies neighborhood characteristics associated with increased infection risk.MethodsUsing a unique neighborhood boundary, California Medical Service Study Areas, a hotspot analysis, and estimates of neighborhood infection risk ratios were conducted for all CA-Sa SSTIs presented in non-Federal California emergency departments between 2016 and 2019. A Bayesian Poisson regression model evaluated the association between neighborhood-level infection risk and population structure, neighborhood poverty rates, and being a healthcare shortage area.ResultsEmergency departments in more rural and mountainous parts of California experienced a higher burden of CA-Sa SSTIs between 2016 and 2019. Neighborhoods with high infection rates were more likely to have a high percentage of adults living below the federal poverty level and be a designated healthcare shortage area. Measures of population structure were not associated with infection risk in California neighborhoods.ConclusionsOur results highlight a potential change in the epidemiology of CA-Sa SSTIs in California emergency departments. Future studies should investigate the CA-Sa burden in other geographies to identify whether this shift in epidemiology holds across other states and populations. Further, a more thorough evaluation of potential mechanisms for the clustering of infections seen across California neighborhoods is needed.

Health-Outcomes and Epidemiologic Research of Transgender Patients Requires Simple, Meaningful Diagnostic Codes: A Retrospective Review of California Emergency Department Visits

Health-Outcomes and Epidemiologic Research of Transgender Patients Requires Simple, Meaningful Diagnostic Codes: A Retrospective Review of California Emergency Department Visits

CA FIRST (California Febrile Infant Risk Stratification Tool) Algorithm Development in a Learning Health System.

Introduction There is considerable variation in the approach to infants presenting to the emergency department (ED) with fever. The authors' primary aim was to develop a robust set of algorithms using community ED data to inform modifications of broader clinical guidance. Methods The authors report the development of California Febrile Infant Risk Stratification Tool (CA FIRST) using key components of the Roseville Protocol (ROS) and American Academy of Pediatrics (AAP) Clinical Practice Guideline (CPG). Expanded guidance was derived using a retrospective analysis of a cohort of 3527 febrile infants aged 7-90 days presenting to any Kaiser Permanente Northern California ED between 2010 and 2019 who underwent a core febrile infant evaluation. Results Melding ROS and AAP CPG algorithms in infants 7-60 days old, CA FIRST Algorithms had comparable performance characteristics to ROS and AAP CPG. CA FIRST enhancements included guidance on febrile infants 61-90 days old, high-risk infants, infants with bronchiolitis, and infants who received immunizations within the prior 48 hours. This retrospective analysis revealed that of 235 febrile infants 22-90 days old with respiratory syncytial virus and 221 who had fever in the 48 hours following vaccination, there were no cases of invasive bacterial infection. Discussion CA FIRST is a set of 13 algorithms providing a thoughtful and flexible approach to the febrile infant while minimizing unnecessary interventions. Conclusions CA FIRST Algorithms empower clinicians to manage most febrile infants. Algorithms are being modified as new data become available, imparting useful and ever-current educational information within a learning health care system.

Interfacility Transfer of Uninsured vs Insured Patients With ST-Segment Elevation Myocardial Infarction in California

Insurance status has been associated with whether patients with ST-segment elevation myocardial infarction (STEMI) presenting to emergency departments are transferred to other facilities, but whether the facility's percutaneous coronary intervention capabilities mediate this association is unknown. To examine whether uninsured patients with STEMI were more likely than patients with insurance to experience interfacility transfer. This observational cohort study compared patients with STEMI with and without insurance who presented to California emergency departments between January 1, 2010, and December 31, 2019, using the Patient Discharge Database and Emergency Department Discharge Database from the California Department of Health Care Access and Information. Statistical analyses were completed in April 2023. Primary exposures were lack of insurance and facility percutaneous coronary intervention capabilities. The primary outcome was transfer status from the presenting emergency department of a percutaneous coronary intervention-capable hospital, defined as a facility performing 36 percutaneous coronary interventions per year. Multivariable logistic regression models with multiple robustness checks were performed to determine the association of insurance status with the odds of transfer. This study included 135 358 patients with STEMI, of whom 32 841 patients (24.2%) were transferred (mean [SD] age, 64 [14] years; 10 100 women [30.8%]; 2542 Asian individuals [7.7%]; 2053 Black individuals [6.3%]; 8285 Hispanic individuals [25.2%]; 18 650 White individuals [56.8%]). After adjusting for time trends, patient factors, and transferring hospital characteristics (including percutaneous coronary intervention capabilities), patients who were uninsured had lower odds of experiencing interfacility transfer than those with insurance (adjusted odds ratio, 0.93; 95% CI, 0.88-0.98; P = .01). After accounting for a facility's percutaneous coronary intervention capabilities, lack of insurance was associated with lower odds of emergency department transfer for patients with STEMI. These findings warrant further investigation to understand the characteristics of facilities and outcomes for uninsured patients with STEMI.

High-Dose Buprenorphine Initiation in the Emergency Department Among Patients Using Fentanyl and Other Opioids

This cohort study examines buprenorphine treatment initiation, response, and follow-up among patients presenting to California emergency departments (EDs) who reported fentanyl or other opioid use.

CT Use Reduction In Ostensive Ureteral Stone (CURIOUS)

IntroductionComputed tomography (CT) is performed in over 90% of patients diagnosed with ureteral stones, but only 10% of patients presenting to the emergency department (ED) with acute flank pain are hospitalized for a clinically important stone or non-stone diagnosis. Hydronephrosis can be accurately detected using point-of-care ultrasound and is a key predictor of ureteral stone and risk of subsequent complications. The absence of hydronephrosis is insufficient to exclude a stone. We created a sensitive clinical decision rule to predict clinically important ureteral stones. We hypothesized that this rule could identify patients at low risk for this outcome. MethodsWe conducted a retrospective cohort study in a random sample of 4000 adults who presented to one of 21 Kaiser Permanente Northern California EDs and underwent a CT for suspected ureteral stone from 1/1/2016 to 12/31/2020. The primary outcome was clinically important stone, defined as stone resulting in hospitalization or urologic procedure within 60 days. We used recursive partition analysis to generate a clinical decision rule predicting the outcome. We estimated the C-statistic (area under the curve), plotted the receiver operating characteristic (ROC) curve for the model, and calculated sensitivity, specificity, and predictive values of the model based on a risk threshold of 2%. ResultsAmong 4000 patients, 354 (8.9%) had a clinically important stone. Our partition model resulted in four terminal nodes with risks ranging from 0.4% to 21.8%. The area under the ROC curve was 0.81 (95% CI 0.80, 0.83). Using a 2% risk cut point, a clinical decision tree including hydronephrosis, hematuria, and a history of prior stones predicted complicated stones with sensitivity 95.5% (95% CI 92.8%–97.4%), specificity 59.9% (95% CI 58.3%–61.5%), positive predictive value 18.8% (95% CI 18.1%–19.5%), and negative predictive value 99.3% (95% CI 98.8%–99.6%). ConclusionsApplication of this clinical decision rule to imaging decisions would have led to 63% fewer CT scans with a miss rate of 0.4%. A limitation was the application of our decision rule only to patients who underwent CT for suspected ureteral stone. Thus, this rule would not apply to patients who were thought to have ureteral colic but did not receive a CT because ultrasound or history were sufficient for diagnosis. These results could inform future prospective validation studies.

Characteristics of California Emergency Departments in Centers for Disease Control and Prevention-Designated HIV Priority Counties

BackgroundRefocused national HIV testing initiatives include a geographic focus. ObjectiveUsing a geographic focus, we sought to identify which emergency departments (EDs) might be the most efficient targets for future HIV testing efforts, using California as an example. MethodsRetrospective analysis of California EDs, emergency physicians, and patients served, along with county-level estimates of HIV prevalence and proportion of the population living in poverty. Emphasis was placed on characterizing EDs affiliated with teaching hospitals and those located in Centers for Disease Control (CDC) and Prevention HIV priority counties. ResultsOf the 320 EDs studied, 178 were in priority counties, 29 were affiliated with teaching hospitals, and 24 had both characteristics. Of the 12,869,889 ED visits included, 61.8% occurred in priority counties, 14.7% in EDs affiliated with teaching hospitals, and 12.0% in EDs with both characteristics. The subset of EDs in priority counties with teaching hospital affiliations (compared with priority and nonpriority county ED groups without a teaching hospital affiliation) had higher overall median visit volumes and higher proportions of visits by at-risk and CDC-targeted populations (e.g., individuals who were homeless, those who identified as Black or African American race, and those who identified as Hispanic or Latino ethnicity, all p < 0.01). ConclusionsEDs in priority counties affiliated with teaching hospitals are major sources of health care in California. These EDs more often serve populations disproportionately impacted by HIV. These departments are efficient targets to direct testing efforts. Increasing testing in these EDs could reduce the burden of undiagnosed HIV in California.

Incidence and Correlates of Emergency Department Visits for Deliberate Self-Harm Among Asian American Youth

PurposeThis study examined the epidemiology of self-harm emergency department (ED) visits among Asian American and Pacific Islander (AAPI) youth, and associated factors. MethodsWe used California ED visit records in 2010 and 2011 to calculate incidence rates of self-harm ED visits for AAPI versus non-Hispanic White (NHW) patients aged 10–29 years. Demographic and clinical characteristics were compared for AAPI versus NHW patients presenting with self-harm. We used modified Poisson regression models to estimate the relative risk of recurrent ED self-harm visits for AAPI versus NHW patients and examined the association of insurance type and gender with recurrent self-harm among AAPIs. ResultsRates of self-harm ED visits for young AAPI patients were 38 and 26 per 100,000 among females and males, respectively. Although AAPI patients presenting with self-harm were equally or less likely than NHW patients to have comorbid psychological and substance use diagnoses at their index visit, they were 25% more likely to be admitted to hospital. However, they were 40% less likely to have a recurrent ED self-harm visit. Among AAPI patients, those who used Medicaid were significantly more likely than those with other insurance to be admitted as inpatients. DiscussionYoung AAPI patients presenting to EDs with deliberate self-harm have different sociodemographic and clinical profiles compared to NHW patients. Our study also demonstrates significant heterogeneity in risk of recurrent self-harm by gender and insurance type among AAPI patients. This information may be useful for future intervention programs among self-harming AAPI youth.

Using AAP Guidelines for Managing Febrile Infants Without C-Reactive Protein and Procalcitonin.

In 2021, the American Academy of Pediatrics (AAP) published the Clinical Practice Guideline (CPG) for management of well-appearing, febrile infants 8 to 60 days old. For older infants, the guideline relies on several inflammatory markers, including tests not rapidly available in many settings like C-reactive protein (CRP) and procalcitonin (PCT). This study describes the performance of the AAP CPG for detecting invasive bacterial infections (IBI) without using CRP and PCT. This retrospective cohort study included infants aged 8 to 60 days old presenting to Kaiser Permanente Northern California emergency departments between 2010 and 2019 with temperatures ≥38°C who met AAP CPG inclusion criteria and underwent complete blood counts, blood cultures, and urinalyses. Performance characteristics for detecting IBI were calculated for each age group. Among 1433 eligible infants, there were 57 (4.0%) bacteremia and 9 (0.6%) bacterial meningitis cases. Using absolute neutrophil count >5200/mm3 and temperature >38.5°C as inflammatory markers, 3 (5%) infants with IBI were misidentified. Sensitivities and specificities for detecting infants with IBIs in each age group were: 8 to 21 days: 100% (95% confidence interval [CI] 83.9%-100%) and 0% (95% CI 0%-1.4%); 22 to 28 days: 88.9% (95% CI 51.8%-99.7%) and 40.4% (95% CI 33.2%- 48.1%); and 29 to 60 days: 93.3% (95% CI 77.9%-99.2%) and 32.1% (95% CI 29.1%- 35.3%). Invasive interventions were recommended for 100% of infants aged 8 to 21 days; 58% to 100% of infants aged 22 to 28 days; and 0% to 69% of infants aged 29 to 60 days. When CRP and PCT are not available, the AAP CPG detected IBI in young, febrile infants with high sensitivity but low specificity.

Patient and Visit Characteristics Associated With Physical Restraint Use in the Emergency Department.

Objective Physical restraints are used in emergency departments (EDs) to address behavioral emergencies in situations in which less restrictive methods have failed. The objective of this study was to evaluate for associations between patient/visit characteristics and physical restraint use. Study Design This study was designed as a cross-sectional, retrospective study of all encounters at Kaiser Permanente Northern California EDs from January 1, 2016, to December 31, 2019, to evaluate differences in patient and visit characteristics between visits involving physical restraint use and those without. Methods Using electronic health record data, this study identified physical restraint use among ED encounters and extracted demographic, clinical, and facility characteristics. The authors calculated odds ratios for physical restraint placement, adjusting for patient and visit characteristics and accounting for within-patient clustering. Results Among 4,410,816 encounters (representing 1,791,673 patients), 6369 encounters (0.1%) involved physical restraint use among 5,554 patients (0.3%). Variables associated with the lowest odds of physical restraint included female sex, presentation to the ED in more recent years, and presence of intentional self-harm/suicidal ideation. Variables associated with the highest odds of physical restraint included higher visit acuity and weekend presentations to the ED. Discussion This study, which leveraged a large, diverse patient sample generalizable to the Northern California population, found several patient and visit characteristics associated with physical restraint use in the ED. Conclusion Results of this study may help identify patient groups and situational factors that are most likely to lead to physical restraint use and structural factors contributing to disparities in care, thereby informing interventions to reduce physical restraint use when possible.

Characteristics of Pediatric Patient Transfers From General Emergency Departments in California From 2005 to 2018.

Each year, approximately 300,000 pediatric patients are transferred out of emergency departments (EDs). Emergency department transfers may not only provide a higher level of care but also incur increased resource use and cost. Our objective was to identify hospital characteristics and patient demographics and conditions associated with ED transfer as well as the trend of transfers over time. This was a retrospective cohort study of pediatric visits to EDs in California using the California Office of Statewide Health Planning and Development ED data set (2005-2018). Hospitals were categorized based on inpatient pediatric capabilities. Patients were characterized by demographics and Clinical Classifications Software diagnostic categories. Regression models were created to analyze likelihood of outcome of transfer compared with admission. Over the 14-year period, there were 38,117,422 pediatric visits to 364 EDs in California with a transfer rate of 1% to 2%. During this time, the overall proportion of pediatric transfers increased, whereas pediatric admissions decreased for all hospital types. Transfers were more likely in general hospitals without licensed pediatric beds (odds ratio [OR], 16.26; 95% confidence interval [CI], 15.87-16.67) and in general hospitals with licensed pediatric beds (OR, 3.54; 95% CI, 3.46-3.62) than in general hospitals with pediatric intensive care unit beds. Mental illness (OR, 61.00; 95% CI, 57.90-63.20), poisoning (OR, 11.78; 95% CI, 11.30-12.30), diseases of the circulatory system (OR, 6.13; 95% CI, 5.84-6.43), diseases of the nervous system (OR, 4.61; 95% CI, 4.46-4.76), and diseases of the blood and blood-forming organs (OR, 3.21; 95% CI, 3.62; 95% CI, 3.45-3.79) had increased odds of transfer. Emergency departments in general hospitals without pediatric intensive care units and patients' Clinical Classifications Software category were associated with increased likelihood of transfer. A higher proportion of patients with complex conditions are transferred than those with common conditions. General EDs may benefit from developing transfer processes and protocols for patients with complex medical conditions.

Advances in diagnostic codes to document sexual assault in health care service.

To explore trends in documented sexual abuse/assault (SA) related episodes in California hospitals and emergency departments (ED), including the impact of a change in health care service reporting codification (from ICD-9-CM to ICD-10-CM) that more clearly defined SA in October 2015. Hospital and ED data were drawn from California's Office of Statewide Health Planning and Development (OSHPD). Descriptive and trend analyses of SA-related hospital and ED records (including patients' demographic information) were conducted to determine whether changes in ICD codification had an impact on documented SA-related episodes. All SA-related episodes (ICD-9-CM codes 995.83, 995.53; ICD-10-CM codes T74.21-T74.22, T76.21-T76.22) in California hospitals and EDs for the last decade of available data (2008-2017) were analyzed (n=20,215). An abrupt increase in documented SA episodes in hospitals and EDs began in October 2015, when specific ICD10 codes for suspected cases of SA were created. Documented SA-related episodes doubled in 1 month (164 vs. 385 episodes in September 2015 and October 2015, respectively). More than half (58.2%) of all SA-related episodes documented in Oct 2015 were coded as suspicious. The number of documented SA-related episodes continued increasing to the end of the time series (December 2017). Overall, the annual number of documented SA-related episodes increased by over 700% in only 4 years (900 vs. 6441 in 2013 and 2017, respectively), suggesting high rates of prior under-reporting and the need to introduce the new codes. African Americans were disproportionally impacted; however, the highest increases in age-adjusted rates between the ICD-9-CM and the ICD-10 codification period were found among the White population (2.46 vs. 16.53 per 100,000 inhabitants). SA episodes in the clinical population have been underestimated for many decades. Identifying SA victims and measuring SA-related health care utilization is a real challenge that needs further investigation.

Patient Cost Share for Emergency Physician Servcies During the COVID-19 Pandemic

BackgroundAs a result of the Coronavirus disease 2019 (COVID-19) pandemic, health plans were required to implement, or voluntarily implemented, patient cost-share waivers for COVID-19-related emergency care. The impact of the cost waivers on patients for emergency physician services has not been previously reported. ObjectiveTo measure the impact of COVID-19 cost-sharing waivers on patients for emergency physician services. MethodsA multicenter retrospective review of emergency physician commercial claims was conducted to determine the impact of the patient cost share waivers on COVID-19-related emergency physician services. Seventy-seven emergency departments (EDs) representing about a quarter of all EDs in California were included in the study. Emergency physician claims during a 9-month prepandemic period in 2019 were compared with claims during a 9-month pandemic period in 2020 to determine if there were any changes in the patient cost share between the two study periods and between COVID vs. non-COVID-related care. ResultsThe average patient cost share was $19 for COVID-19-related emergency physician professional care and $52 for visits unrelated to COVID-19. Compared with non-COVID-19 care visits, the patient cost share was 63% less for COVID-19-related care. There was a small increase (< $2) in the patient cost share for non-COVID-19 emergency professional care during the pandemic compared with the prepandemic period. ConclusionPayment policies implemented by California health plans were effective at reducing the patient cost share for patients that required COVID-19-related emergency physician care.

Clinical management and outcomes for febrile infants 29-60days evaluated in community emergency departments.

ObjectiveDescribe emergency department (ED) management and patient outcomes for febrile infants 29–60 days of age who received a lumbar puncture (LP), with focus on timing of antibiotics and type of physician performing LP.MethodsRetrospective observational study of 35 California EDs from January 1, 2010 through December 31, 2019. Primary analysis was among patients with successful LP and primary outcome was hospital length of stay (LOS). Logistic regression analysis included variables associated with LOS of at least 2 days. Secondary outcomes were bacterial meningitis, hospital admission, length of antibiotics, and readmission.ResultsAmong 2569 febrile infants (median age 39 days), 667 underwent successful LP and 633 received intravenous antibiotics. Most infants (n = 559, 88.3%) had their LP before intravenous antibiotic administration. Pediatricians performed 54% of LPs and emergency physicians 34%. Sixteen infants (0.6% of 2569) were diagnosed with bacterial meningitis, and none died. Five hundred and fifty‐eight (88%) infants receiving an LP were hospitalized. Among patients receiving an LP and antibiotics (n = 633), 6.5% were readmitted within 30 days. Patients receiving antibiotics before LP had a longer length of antibiotics (+ 7.9 hours, 95% confidence interval [CI] 3.8–13.4). Primary analysis found no association between timing of antibiotics and LOS (odds ratio [OR] 0.67, 95% CI 0.34–1.30), but shorter LOS when emergency physicians performed the LP (OR 0.66, 95% CI 0.45–0.97).ConclusionsFebrile infants in the ED had no deaths and few cases of bacterial meningitis. In community EDs, where a pediatrician is often not available, successful LP by emergency physician was associated with reduced inpatient LOS.

This Article Corrects: "Toxicologic Exposures in California Emergency Departments in 2011 and Its Risk Factors".

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Association of Suicide Attempt with Stimulant Abuse in California Emergency Departments in 2011: A Study of 10 Million ED Visits.

IntroductionOur goal in this study was to identify stimulant abuser patients who are at specifically high risk of suicide attempt (SAT), in order to prioritize them in preventive and risk mitigation programs.MethodsWe used the California State Emergency Department Database (SEDD) to obtain discharge information for 2011. The SEDD contains discharge information on all outpatient ED encounters, including uninsured patients and those covered by Medicare, Medicaid, and private insurance. We identified SAT and stimulant abuse by using the relevant International Classification of Diseases, Ninth Revision, codes.ResultsThe study included 10,124,598 outpatient ED visits. Stimulant abuse was observed in 0.97% of ED visits. Stimulant abuse was more common among young and middle-aged males and people with low median household income. Moreover, it was more common among Native American (1.8%) and Black (1.8%), followed by non-Hispanic White (1.1%) patients. The prevalence of SAT was 2.0% (N = 2000) for ED visits by patients with a history of stimulant abuse, and 0.3% (N = 28,606) for ED visits without a history of stimulant abuse (odds ratio 7.29, 95% confidence interval, 6.97–7.64). The SATs were directly associated with stimulant abuse, younger age (age groups >10), and non-Hispanic White and Native American race. Association of SAT with stimulant abuse was stronger in female patients.ConclusionStimulant abuse was the only modifiable risk factor for suicide attempt in our study. Reaching out to populations with higher prevalence of stimulant abuse (young and middle-aged individuals who are Native American or Black, with lower household income) to control the stimulant abuse problem, may reduce the risk of SAT. In this regard, people who are at higher risk of SAT due to non-modifiable risk factors (younger age, and Native American or White race) should be prioritized. Moreover, controlling stimulant abuse among women may be specifically effective in SAT prevention.

Abstract TP160: Use Of Tele-stroke In A Large Integrated Healthcare System Demonstrate No Disparities In Endovascular Treatment For Stroke

Background: Race and sex disparities have been reported in endovascular stroke treatment, the most effective treatment to prevent long-term disability from stroke associated with large vessel occlusion (LVO). In this study, we sought to determine if there are racial and sex disparities in endovascular stroke treatment for patients with acute ischemic stroke due to LVO across 21 community hospitals, part of an integrated delivery system, using a centralized telestroke service and standardized process for rapid stroke evaluation and treatment. Methods: Study population included patients seeking care for suspected acute stroke that were diagnosed with a LVO at one of 21 Northern California Emergency Departments between January 1, 2016 and December 31, 2019. Patients were excluded if they were less than 18 years of age or had a canceled stroke alert. Logistic regression (SAS proc genmod) was used for multivariate models. Results: Of 1519 patients with LVO, 918 underwent endovascular treatment. There were no differences in sex, Healthcare membership (yes or no), or race in patients that received endovascular stroke treatment compared to those that did not in the multi-variate models (Table). As expected, increased age, greater initial NIHSS (greater than 6), arrival by Emergency Medical Service (yes or no), and shorter time to ED arrival were associated with increased treatment rates (Table). There were no significant differences by race or sex. There were no differences in 90-day mortality rates by race (p=0.085). Non-treatment was primarily associated with patient/family refusal and or poor functioning at baseline. Conclusions: Implementation of the telestroke plus standardized workflows within all facilities provided equitable care regarding race and gender on endovascular treatment odds.

Fears of disclosure and misconceptions regarding domestic violence reporting amongst patients in two US emergency departments.

Patients often do not disclose domestic violence (DV) to healthcare providers in emergency departments and other healthcare settings. Barriers to disclosure may include fears and misconceptions about whether, and under what circumstances, healthcare providers report DV to law enforcement and immigration authorities. We sought to assess undocumented Latino immigrants (UDLI), Latino legal residents/citizens (LLRC) and non-Latino legal residents/citizens (NLRC) beliefs about disclosure of DV victimization to healthcare providers and healthcare provider reporting of DV to law enforcement and immigration authorities. From 10/2018-2/2020, we conducted this survey study at two urban emergency departments (EDs) in California. Participants, enrolled by convenience sampling, responded to survey questions adapted from a previously published survey instrument that was developed to assess undocumented immigrant fears of accessing ED care. Our primary outcomes were the proportions of UDLI, LLRC and NLRC who knew of someone who had experienced DV in the past year, whether these DV victims were afraid to access ED care, reasons DV victims were afraid to access ED care, and rates of misconceptions (defined according to current California law) about the consequences of disclosing DV to healthcare providers. Of 667 patients approached, 531 (80%) agreed to participate: 32% UDLI, 33% LLRC, and 35% NLRC. Of the 27.5% of respondents who knew someone who experienced DV in the past year, 46% stated that the DV victim was afraid to seek ED care; there was no significant difference in this rate between groups. The most common fears reported as barriers to disclosure were fear the doctor would report DV to police (31%) and fear that the person perpetrating DV would find out about the disclosure (30.3%). Contrary to our hypothesis, UDLI had lower rates of misconceptions about healthcare provider and law enforcement responses to DV disclosure than LLRC and NLRC. Fear of disclosing DV and misconceptions about the consequences of disclosure of DV to healthcare providers were common, indicating a need for provider, patient, and community education and changes that lower barriers to help-seeking.