Rising Inpatient Utilization and Costs of Cannabis Hyperemesis Syndrome Hospitalizations in Massachusetts After Cannabis Legalization.

GOALS: We described the demographics, inpatient utilization, and cost of services among patients hospitalized for putative cannabinoid hyperemesis syndrome (CHS) predating and postdating cannabis legalization in Massachusetts. BACKGROUND: As the recreational use of cannabis has been widely legalized nationally, the resulting shifts in clinical presentation, health care utilization, and estimated costs of CHS hospitalizations remain unclear in the postlegalization era. STUDY: We performed a retrospective cohort study among patients admitted to a large urban hospital between 2012 and 2021, before and after the date of cannabis legalization in Massachusetts (Dec 15, 2016). We examined the demographic and clinical characteristics of patients admitted for putative CHS, the utilization of hospital services, and estimated inpatient costs pre and postlegalization. RESULTS: We identified a significant increase in putative CHS hospitalizations pre and post-cannabis legalization in Massachusetts (0.1% vs 0.02% of total admissions per time period, P < 0.05). Across 72 CHS hospitalizations, patient demographics were similar pre and postlegalization. Hospital resource utilization increased postlegalization, with increased length of stay (3 d vs 1 d, P < 0.005), and need for antiemetics ( P < 0.05). Multivariate linear regression confirmed that postlegalization admissions were independently associated with increased length of stay ( Β = 5.35, P < 0.05). The mean cost of hospitalization was significantly higher postlegalization ($18,714 vs $7460, P < 0.0005), even after adjusting for medical inflation ($18,714 vs $8520, P < 0.001) with intravenous fluid administration and endoscopy costs increased ( P < 0.05). On multivariate linear regression, hospitalization for putative CHS during postlegalization predicted increased costs ( Β = 10,131.25, P < 0.05). CONCLUSIONS: In the postlegalization era of cannabis in Massachusetts, we found increased putative CHS hospitalizations, with a concomitant increased length of hospital stay and total cost per hospitalization. As cannabis use increases, the recognition and costs of its deleterious effects are necessary to incorporate into future clinical practice strategies and health policy.

"Wanna cry this out real quick?": an examination of secondary traumatic stress risk and resilience among post-overdose outreach staff in Massachusetts.

BACKGROUND: Post-overdose outreach programs engage overdose survivors and their families soon after an overdose event. Staff implementing these programs are routinely exposed to others' trauma, which makes them vulnerable to secondary traumatic stress (STS) and compassion fatigue. The purpose of this study was to explore experiences of STS and associated upstream and downstream risk and protective factors among program staff. METHODS: We conducted a post-hoc analysis of semi-structured interviews with post-overdose outreach program staff in Massachusetts. Transcripts were analyzed using a multi-step hybrid inductive-deductive approach to explore approaches and responses to outreach work, factors that might give rise to STS, and compassion fatigue resilience. Findings were organized according to the three main constructs within Ludick and Figley's compassion fatigue resilience model (empathy, secondary traumatic stress, and compassion fatigue resilience). RESULTS: Thirty-eight interviews were conducted with staff from 11 post-overdose outreach programs in Massachusetts. Within the empathy construct, concern for others' well-being emerged as a motivator to engage in post-overdose outreach work - with staff trying to understand others' perspectives and using this connection to deliver respectful and compassionate services. Within the secondary traumatic stress construct, interviewees described regular and repeated exposure to others' trauma - made more difficult when exposures overlapped with staff members' personal social spheres. Within the compassion fatigue resilience construct, interviewees described the presence and absence of self-care practices and routines, social supports, and workplace supports. Job satisfaction and emotional detachment from work experiences also arose as potential protective factors. Interviewees reported inconsistent presence and utilization of formal support for STS and compassion fatigue within their post-overdose outreach teams. CONCLUSION: Post-overdose outreach program staff may experience secondary traumatic stress and may develop compassion fatigue, particularly in the absence of resilience and coping strategies and support. Compassion fatigue resilience approaches for post-overdose outreach staff warrant further development and study.

Patient Experiences Completing Patient Reported Outcome Measures in Behavioral Health Within a Health Safety-Net Setting.

Measurement based care (MBC), a practice that uses patient reported outcome measures (PROMs), is not widely used in behavioral health settings and little is known about the patient experience with MBC in safety-net settings. This study aimed to understand patient experiences completing PROMs on paper when presenting to an outpatient, behavioral health setting within a public safety-net hospital. Semi-structured interviews were conducted with 22 participants in English and Spanish. Participants were 42 years old (SD = 12.7), mostly white (36.4%) and Black (31.8%). Thematic analysis was used to analyze findings. Overall, participants were engaged with PROMs and described them as helpful for themselves and their clinicians. Participants also expressed themes focused on PROMs user-friendliness, including formatting, time to complete measures, and participant characteristics such as attention and literacy. These findings are important to consider to ensure equitable access to MBC when implemented in behavioral health in the health safety-net setting.

Different factors identified by stakeholder group for barriers and facilitators to measurement-based care implementation in behavioral health clinics.

INTRODUCTION: Despite the benefits of measurement-based care (MBC) in the behavioral health setting, there have been difficulties in implementation and low saturation. Although barriers and facilitators to MBC implementation have been identified, research has generally only included the perspective of one stakeholder group. The current study aims to examine the similarities and differences-by stakeholder group-in the identified barriers to and facilitators of implementing MBC in the behavioral health setting. METHOD: A purposeful sampling approach was used to recruit and conduct interviews and focus groups with stakeholders (clinicians, clinic leaders, and administrative staff) from four behavioral health clinics at an academic medical center that is part of a larger healthcare system. The data coding process included a directed content analytic approach whereby the coding team used an iterative process to analyze deidentified transcripts starting with a codebook based on the Consolidated Framework for Implementation Research (CFIR) constructs. RESULTS: A total of 31 clinicians, 11 clinic leaders, and 8 administrative staff participated in the interviews and focus groups. There was convergence among all stakeholder regarding which CFIR constructs were identified as barriers and facilitators, but there were differences in the specific thematic factors identified by stakeholders as barriers and facilitators within each of these implementation constructs. The barriers and facilitators that stakeholders identified within each CFIR construct were often connected to their specific role in implementing MBC. CONCLUSION: Collecting information on barriers and facilitators to MBC implementation from the multiple stakeholders involved in the process may enhance successful implementation of MBC given the variation between groups in identified thematic factors. Administrative staff perspectives, which have not been reported in the literature, may be of particular importance in planning for successful MBC implementation.

Decreased risk for substance use disorders in individuals with high-functioning autism spectrum disorder.

The objective of this study was to evaluate the risk for developing a substance use disorder (SUD, alcohol or drug abuse or dependence) in individuals with high-functioning autism spectrum disorder (ASD). Subjects with high-functioning ASD were derived from consecutive referrals to a specialized ambulatory program for ASD at a major academic center from 2007 to 2016. Age-matched controls and attention-deficit hyperactivity disorder (ADHD) comparison subjects were derived from three independent studies of children and adults with and without ADHD using identical assessment methodology. Cox proportional hazard models were used to analyze the prevalence of SUD (alcohol or drug use disorder). Age of onset of SUD was analyzed with linear regression models. Our sample included 230 controls, 219 subjects with ADHD, and 230 subjects with ASD. The mean age for the ASD subjects was 20.0 ± 10.3 years. Among ASD subjects, 69% had a lifetime prevalence of ADHD, and the ASD subjects had significantly higher rates of other psychiatric psychopathology compared to ADHD and control subjects (p < 0.001) ASD subjects were at significantly decreased risk for developing a SUD compared to ADHD (hazard ratio (HR) = 0.22, p < 0.001) and control subjects (HR = 0.62, p = 0.04). The age of onset of a SUD was significantly older in ASD subjects, mean age 21.7 years, when compared to ADHD and control subjects (both p < 0.005). Individuals with ASD are at decreased risk to develop a SUD, and when they do, the onset is significantly later than ADHD and controls.

Multidisciplinary Strategies for Preventing Opioid Misuse and Escalation by Targeting Mental Health Symptoms and Conditions.

We aim to review the association between childhood-onset mental health conditions and increased risk for early substance use including opioid misuse and opioid use disorders (OUD). The association between mental health conditions and opioid misuse suggests youth with mental health conditions may benefit from opioid prevention efforts that concurrently address mental health. To aid in the identification of youth with mental health conditions who could benefit from interventions, we will review opportunities and challenges associated with screening for mental health symptoms or substance use in settings where youth at high risk for mental health conditions present. We will also review how research projects within the National Institutes of Health's Helping to End Addiction Long-term (HEAL) Prevention Cooperative are addressing mental health within opioid misuse and OUD prevention interventions for youth.

Including Community Partners in the Development and Adaptation of Intervention Strategies to Prevent Initiation or Escalation of Opioid Misuse.

Current literature lacks clear examples of how to engage with communities in the development of opioid misuse interventions for diverse populations and across various settings. The National Institutes of Health (NIH) Helping to End Addiction Long-term® Initiative (HEAL) Prevention Cooperative (HPC) research projects work collaboratively with communities to develop and adapt their opioid misuse interventions to increase both feasibility and sustainability. Ten HPC projects were selected to receive NIH funding and are required to have partnerships with communities where their intervention is being conducted. This paper applies the Centers for Disease Control and Prevention (CDC)-adapted Public Participation Framework to examine the levels of community engagement used by each of these 10 HPC projects (Clinical and Translational Science Awards Consortium Community Engagement Key Function Committee Task Force on the Principles of Community Engagement, 2015). Using this framework, this paper illustrates the range of community engagement approaches and levels that the HPC projects rely on to develop, adapt, and adopt opioid prevention interventions across diverse populations and settings. This paper also lays a foundation for future examinations of the role of community engagement in intervention implementation and effectiveness and the level of community engagement that is necessary to improve intervention effectiveness.

Characterizing autistic traits in treatment-seeking young adults with substance use disorders.

BACKGROUND AND OBJECTIVES: Recent work highlights an increase in the overlap of autism spectrum disorder (ASD) and substance use disorder (SUD). Little is known about the presence of ASD symptoms in SUD-treatment-seeking populations. METHODS: The informant-rated Social Responsiveness Scale-2 (SRS-2) was completed at intake to an outpatient SUD clinic for youth aged 16-26 (N = 69). Comparisons were made between those with elevated SRS-2 scores on demographic, psychiatric, and substance use variables. RESULTS: Parents of sixty-nine patients with SUD completed the SRS-2. Fourteen (20%) (average age 18.7 ± 2.5) had elevated SRS-2 Total T-scores (≥66) and 55 (average age 18.1 ± 2.8) had non-clinical SRS-2 Total T-scores. There were few differences between groups; however, those with elevated SRS-2 Total T-scores were more likely to have a stimulant use disorder (odds ratio [OR] = 7.59, 95% confidence interval [CI] = 0.77, 101.88; p = 0.05) or an opioid use disorder (OR = 5.02, 95% CI = 0.59, 43.27; p = 0.08) than patients with normal SRS-2 Total T-scores as well as alcohol use in the week prior to intake. DISCUSSION AND CONCLUSIONS: A significant proportion of treatment-seeking SUD outpatients suffer from clinically elevated autistic traits. These findings highlight the importance of assessing for autistic traits in SUD treatment settings yet additional research is needed to determine if these findings are specific to the presence of ASD or secondary to sequelae of specific SUD presentations. SCIENTIFIC SIGNIFICANCE: This study is, to our knowledge, the first to have examined the prevalence, morbidity, or clinical characteristics, associated with ASD symptoms in a SUD-specific population.

Awareness, Utilization, and Preferences of Harm Reduction Interventions among Street-Involved Young Adults in Boston.

OBJECTIVES: This study explores knowledge and utilization of, barriers to, and preferences for harm reduction services among street-involved young adults (YA) in Boston, Massachusetts. METHODS: This cross-sectional survey of YA encountered between November and December 2019 by a longstanding outreach program for street-involved YA. We report descriptive statistics on participant-reported substance use, knowledge and utilization of harm reduction strategies, barriers to harm reduction services and treatment, and preferences for harm reduction service delivery. RESULTS: The 52 YA surveyed were on average 21.4 years old; 63.5% were male, and 44.2% were Black. Participants reported high past-week marijuana (80.8%) and alcohol (51.9%) use, and 15.4% endorsed opioid use and using needles to inject drugs in the past six months. Fifteen (28.8%) YA had heard of "harm reduction", and 17.3% reported participating in harm reduction services. The most common barriers to substance use disorder treatment were waitlists and cost. Participants suggested that harm reduction programs offer peer support (59.6%) and provide a variety of services including pre-exposure prophylaxis (42.3%) and sexually transmitted infection testing (61.5%) at flexible times and in different languages, including Spanish (61.5%) and Portuguese (17.3%). CONCLUSIONS: There is need for comprehensive, YA-oriented harm reduction outreach geared toward marginalized YA and developed with YA input to reduce barriers, address gaps in awareness and knowledge of harm reduction, and make programs more relevant and inviting to YA.

High Correspondence Between Child Behavior Checklist Rule Breaking Behavior Scale with Conduct Disorder in Males and Females.

This study investigated the diagnostic utility of the Child Behavior Checklist (CBCL) Rule-Breaking Behavior scale to identify children of both sexes with conduct disorder (CD). Participants were derived from four independent datasets of children with and without attention deficit hyperactivity disorder and bipolar-I disorder of both sexes. Participants had structured diagnostic interviews with raters blinded to subject ascertainment status. Receiver operating characteristic (ROC) curves were used to examine the scale's ability to identify children with and without CD. The sample consisted of 674 participants (mean age of 11.7 ± 3.3 years, 57% male, 94% Caucasian). The interaction to test if CBCL Rule-Breaking Behavior scores identified males and females with CD differently was not significant, thus we performed ROC analysis in the combined group. The ROC analysis of the scale yielded an area under the curve of 0.9. A score of ≥ 60 on the scale correctly classified 82% of participants with CD with 85% sensitivity, 81% specificity, 48% positive predictive value, 96% negative predictive value. The CBCL Rule-Breaking Behavior scale was an efficient tool to identify children with CD.

Risk Factors for Overdose in Young People Who Received Substance Use Disorder Treatment.

BACKGROUND AND OBJECTIVES: To identify substance and psychiatric predictors of overdose (OD) in young people with substance use disorders (SUDs) who received treatment. METHODS: We conducted a retrospective review of consecutive medical records of young people who were evaluated in a SUD program between 2012 and 2013 and received treatment. An independent group of patients from the same program who received treatment and had a fatal OD were also included in the sample. OD was defined as substance use associated with a significant impairment in level of consciousness without intention of self-harm, or an ingestion of a substance that was reported as a suicide attempt. t Tests, Pearson's χ2 , and Fisher's exact tests were performed to identify predictors of OD after receiving treatment. RESULTS: After initial evaluation, 127 out of 200 patients followed up for treatment and were included in the sample. Ten (8%) of these patients had a nonfatal OD. Nine patients who received treatment and had a fatal OD were also identified. The sample's mean age was 20.2 ± 2.8 years. Compared with those without OD, those with OD were more likely to have a history of intravenous drug use (odds ratio [OR]: 36.5, P < .001) and mood disorder not otherwise specified (OR: 4.51, P = .01). DISCUSSION AND CONCLUSIONS: Intravenous drug use and mood dysregulation increased risk for OD in young people who received SUD treatment. SCIENTIFIC SIGNIFICANCE: It is important to identify clinically relevant risk factors for OD specific to young people in SUD treatment due to the risk for death associated with OD. (Am J Addict 2019;28:382-389).

Neuropsychological functioning in college students who misuse prescription stimulants.

BACKGROUND AND OBJECTIVES: Relatively little is known about the neuropsychological profiles of college students who misuse prescription stimulant medications. METHODS: Data presented are from college students aged 18-28 years who misused prescription stimulants prescribed for attention-deficit/hyperactivity disorder and controls (no prescription stimulant misuse). Students were assessed neuropsychologically using the self-report Behavioral Rating Inventory of Executive Functioning (BRIEF-A), the Cambridge Automated Neuropsychological Test and Battery (CANTAB), and other tests of cognitive functioning. The analyses included 198 controls (age 20.7 ± 2.6 years) and 100 prescription stimulant misusers (age 20.7 ± 1.7 years). RESULTS: On the BRIEF-A, misusers were more likely than controls to endorse greater dysfunction on 8 of 12 measures including Inhibition, Self Monitor, Initiation, Working Memory, and Plan/Organize, when adjusting for race and sex (all p's < .05). Similarly, when dichotomizing the BRIEF-A as abnormal (T score ≥ 65), misusers had more abnormalities on five of nine subscales, as well as all major indices (p's < .05). Misusers also performed worse on several subtests of the CANTAB and standardized cognitive battery (p's < .05). A proxy of prescription stimulant misuse frequency was positively correlated with greater executive dysfunction on the BRIEF-A. DISCUSSION AND CONCLUSIONS: These data demonstrate elevated risk for neuropsychological dysfunction among students who misuse prescription stimulants compared to non-misusing peers. The presence of ADHD contributed significantly to these cognitive findings. Students who misuse prescription stimulants should be screened for neuropsychological dysfunction. SCIENTIFIC SIGNIFICANCE: These data may better elucidate the neuropsychological profile of college-aged prescription stimulant misusers. (Am J Addict 2017;26:379-387).

How Should Harm Reduction Strategies Differ for Adolescents and Adults?

Overall rates of opioid use are low in adolescents; however, recent increases in mortality from overdose in adolescents have outpaced increases in the general population. This article highlights the importance of expanding evidence-based treatment for adolescent opioid use, especially medication, while also addressing key ethical considerations of harm reduction practices and how application of such practices with adolescents may differ from adults. Concepts related to adolescent populations are discussed, including autonomy, confidentiality, and brain development. Application of harm reduction practices should be age appropriate, express respect for patients' autonomy, include social support, and be accompanied by broader aims to minimize adolescent initiation, escalation, and overall harm caused by opioid use.

Feasibility of a 2-Part Substance Use Screener Self-Administered by Patients on Paper: Observational Study.

BACKGROUND: Measurement-based care in behavioral health uses patient-reported outcome measures (PROMs) to screen for mental health symptoms and substance use and to assess symptom change over time. While PROMs are increasingly being integrated into electronic health record systems and administered electronically, paper-based PROMs continue to be used. It is unclear if it is feasible to administer a PROM on paper when the PROM was initially developed for electronic administration. OBJECTIVE: This study aimed to examine the feasibility of patient self-administration of a 2-part substance use screener-the Tobacco, Alcohol, Prescription medications, and other Substances (TAPS)-on paper. This screener was originally developed for electronic administration. It begins with a limited number of questions and branches to either skip or reflex to additional questions based on an individual's responses. In this study, the TAPS was adapted for paper use due to barriers to electronic administration within an urgent care behavioral health clinic at an urban health safety net hospital. METHODS: From August 2021 to March 2022, research staff collected deidentified paper TAPS responses and tracked TAPS completion rates and adherence to questionnaire instructions. A retrospective chart review was subsequently conducted to obtain demographic information for the patients who presented to the clinic between August 2021 and March 2022. Since the initial information collected from TAPS responses was deidentified, demographic information was not linked to the individual TAPS screeners that were tracked by research staff. RESULTS: A total of 507 new patients were seen in the clinic with a mean age of 38.7 (SD 16.6) years. In all, 258 (50.9%) patients were male. They were predominantly Black (n=212, 41.8%), White (n=152, 30%), and non-Hispanic or non-Latino (n=403, 79.5%). Most of the patients were publicly insured (n=411, 81.1%). Among these 507 patients, 313 (61.7%) completed the TAPS screener. Of these 313 patients, 76 (24.3%) adhered to the instructions and 237 (75.7%) did not follow the instructions correctly. Of the 237 respondents who did not follow the instructions correctly, 166 (70%) answered more questions and 71 (30%) answered fewer questions than required in TAPS part 2. Among the 237 patients who did not adhere to questionnaire instructions, 44 (18.6%) responded in a way that contradicted their response in part 1 of the screener and ultimately affected their overall TAPS score. CONCLUSIONS: It was challenging for patients to adhere to questionnaire instructions when completing a substance use screener on paper that was originally developed for electronic use. When selecting PROMs for measurement-based care, it is important to consider the structure of the questionnaire and how the PROM will be administered to determine if additional support for PROM self-administration needs to be implemented.

Medication Treatment for Youth in Substance Use Disorder Residential Treatment.

OBJECTIVE: Residential is a common treatment setting for youth with high-severity substance use disorders (SUD). This study evaluated the prevalence of psychiatric symptoms and medication for youth in residential SUD treatment. METHODS: Youth in Massachusetts state licensed and funded SUD residential programs completed questionnaires assessing demographics, primary substance of use, and psychopathology symptoms (Youth Self Report [YSR]/Adult Self Report [ASR]). De-identified medication lists were provided by the programs. Descriptive statistics were used to describe the sample. RESULTS: Among the 47 youth who participated, 51.1% were male, 72.3% white, 83% non-Hispanic, mean age 20.7 years. Opioids were the most common primary substance identified by youth (51.1%), and 75% had at least one clinically elevated subscale on the YSR/ASR. Most youth were prescribed at least one medication (89.4%) with a mean of 2.9 medications. CONCLUSION: Youth in SUD residential treatment frequently have clinically elevated psychiatric symptoms, and psychotropic medication was commonly prescribed.

Trends in Attention-Deficit Hyperactivity Disorder Diagnosis and Pharmacotherapy Among Adults With Opioid Use Disorder.

OBJECTIVE: This study aimed to assess nationwide trends in attention-deficit hyperactivity disorder (ADHD) diagnoses and pharmacotherapy among patients with opioid use disorder and ADHD and to examine factors predicting receipt of stimulant medications among patients receiving medications for opioid use disorder (MOUDs). METHODS: A claims-based database of commercially insured patients ages 13-64 was used to conduct two analyses: an annual cross-sectional study of 387,980 patients diagnosed as having opioid use disorder (2007-2017) to estimate the prevalence of ADHD diagnoses and pharmacotherapy, and a retrospective cohort study of 158,591 patients receiving MOUDs to test, with multivariable regression, the association between patient characteristics and receipt of stimulant medication. RESULTS: From 2007 to 2017, the prevalence of ADHD diagnoses increased from 4.6% to 15.1% and the rate of ADHD pharmacotherapy increased from 42.6% to 51.8% among patients with opioid use disorder. Among all patients receiving MOUDs, 10.5% received at least one prescription stimulant during the study period. Female sex; residence in the southern United States; and ADHD, mood, and anxiety disorder diagnoses were associated with increased likelihood of stimulant receipt. Stimulant use disorder and other substance use disorder diagnoses were associated with decreased likelihood of stimulant receipt. CONCLUSIONS: ADHD diagnoses and pharmacotherapy among patients with opioid use disorder have increased. A minority of patients with ADHD and taking MOUDs received a stimulant. Further study is needed of the benefits and risks of ADHD pharmacotherapy for patients with opioid use disorder.

Does exposure to parental substance use disorders increase substance use disorder risk in offspring? A 5-year follow-up study.

BACKGROUND: This study examined the impact of exposure to parental substance use disorders (SUD) (alcohol or drug abuse or dependence) on the development of SUD in offspring. METHODS: The original sample was derived from pediatric and psychiatric ascertained females 6-17 years old with (N = 140) and without Attention Deficit Hyperactivity Disorder (ADHD; N = 122). At baseline, these groups had 143 and 131 biological siblings and 274 and 238 parents, respectively. All subjects and their family members were comprehensively and blindly assessed by structured psychiatric interviews for psychopathology and substance use. The female probands and their siblings were reassessed after a follow-up period of 5 years. RESULTS: At follow-up the mean age of offspring was 17.9 ± 4.20 years. Independently of ADHD, familial risk, and socioeconomic status, exposure to maternal drug use disorders, but not paternal drug use disorders, was significantly associated with the development of a drug use disorder in offspring (OR: 7.04; p = 0.03). There was a significant association between exposure to parental SUD during adolescence (relative to preschool or latency years) and SUD in offspring (OR: 3.61; p = 0.03). CONCLUSIONS: Exposure to maternal drug use disorders during adolescent years increased the risk for the development of a drug use disorder in a sample of females with and without ADHD and their siblings. Exposure to parental SUD during adolescence specifically increases the risk of SUD development in offspring.

A systematic review of substance use screening in outpatient behavioral health settings.

OBJECTIVE: Despite the frequent comorbidity of substance use disorders (SUDs) and psychiatric disorders, it remains unclear if screening for substance use in behavioral health clinics is a common practice. The aim of this review is to examine what is known about systematic screening for substance use in outpatient behavioral health clinics. METHODS: We conducted a PRISMA-based systematic literature search assessing substance use screening in outpatient adult and pediatric behavioral health settings in PubMed, Embase, and PsycINFO. Quantitative studies published in English before May 22, 2020 that reported the percentage of patients who completed screening were included. RESULTS: Only eight articles met our inclusion and exclusion criteria. Reported prevalence of screening ranged from 48 to 100%, with half of the studies successfully screening more than 75% of their patient population. There were limited data on patient demographics for individuals who were and were not screened (e.g., gender, race) and screening practices (e.g., electronic versus paper/pencil administration). CONCLUSIONS: The results of this systematic review suggest that successful screening for substance use in behavioral health settings is possible, yet it remains unclear how frequently screening occurs. Given the high rates of comorbid SUD and psychopathology, future research is necessary regarding patient and clinic-level variables that may impact the successful implementation of substance use screening. Trial registry A methodological protocol was registered with the PROSPERO systematic review protocol registry (ID: CRD42020188645).