Psychosocial Risks and Adolescent Mental Health: The Moderating Role of Objective Neighborhood Characteristics.

PURPOSE: Although previous studies have examined the association between youth psychosocial risks and their perceptions of their neighborhood, it is unclear how objective neighborhood characteristics are associated with psychosocial risks and mental health symptoms among adolescents. We investigated how neighborhood characteristics moderate the relationship between youth psychosocial characteristics and mental health symptoms. METHODS: This cross-sectional study examined 13,837 emergency department visits by 14-18-year-olds who completed a standardized Behavioral Health Screening in a tertiary pediatric hospital in Philadelphia from 2013 to 2020. Psychosocial risk factors and mental health symptoms were assessed based on self-reported survey responses. We characterized neighborhoods as low-, moderate-, and high-stress based on gun violence incidence from 2013 to 2020 and the census tract-level Child Opportunity Index. Mixed effects logistic regression and Poisson models were used to examine moderation effects. RESULTS: The 9,814 included patients were 64% female and 64% non-Hispanic Black. The following psychosocial risk factors were associated with two to eight times higher odds of depressive symptoms and suicide risk: exposure to trauma, bullying at school, at-risk substance use, fighting, and retaliation. Adolescents living in high-stress neighborhoods were twice as likely to report fighting and retaliation and reported more psychosocial risk factors than those in low-stress neighborhoods. Odds of mental health symptoms increased with the number of psychosocial risk factors, particularly in youth from low-stress neighborhoods. DISCUSSION: Objective neighborhood characteristics had a significant interaction effect on the relationship between psychosocial risks and depression and suicide risk among adolescents seeking care in a pediatric emergency department.

Classification of Suicide Attempt Risk Using Environmental and Lifestyle Factors in 3 Large Youth Cohorts.

Importance: Suicide is the third-leading cause of death among US adolescents. Environmental and lifestyle factors influence suicidal behavior and can inform risk classification, yet quantifying and incorporating them in risk assessment presents a significant challenge for reproducibility and clinical translation. Objective: To quantify the aggregate contribution of environmental and lifestyle factors to youth suicide attempt risk classification. Design, Setting, and Participants: This was a cohort study in 3 youth samples: 2 national longitudinal cohorts from the US and the UK and 1 clinical cohort from a tertiary pediatric US hospital. An exposome-wide association study (ExWAS) approach was used to identify risk and protective factors and compute aggregate exposomic scores. Logistic regression models were applied to test associations and model fit of exposomic scores with suicide attempts in independent data. Youth from the Adolescent Brain Cognitive Development (ABCD) study, the UK Millennium Cohort Study (MCS), and the Children's Hospital of Philadelphia emergency department (CHOP-ED) were included in the study. Exposures: A single-weighted exposomic score that sums significant risk and protective environmental/lifestyle factors. Main Outcome and Measure: Self-reported suicide attempt. Results: A total of 40 364 youth were included in this analysis: 11 564 from the ABCD study (3 waves of assessment; mean [SD] age, 12.0 [0.7] years; 6034 male [52.2%]; 344 attempted suicide [3.0%]; 1154 environmental/lifestyle factors were included in the ABCD study), 9000 from the MCS cohort (mean [SD] age, 17.2 [0.3] years; 4593 female [51.0%]; 661 attempted suicide [7.3%]; 2864 environmental/lifestyle factors were included in the MCS cohort), and 19 800 from the CHOP-ED cohort (mean [SD] age, 15.3 [1.5] years; 12 937 female [65.3%]; 2051 attempted suicide [10.4%]; 36 environmental/lifestyle factors were included in the CHOP-ED cohort). In the ABCD discovery subsample, ExWAS identified 99 risk and protective exposures significantly associated with suicide attempt. A single weighted exposomic score that sums significant risk and protective exposures was associated with suicide attempt in an independent ABCD testing subsample (odds ratio [OR], 2.2; 95% CI, 2.0-2.6; P < .001) and explained 17.6% of the variance (based on regression pseudo-R2) in suicide attempt over and above that explained by age, sex, race, and ethnicity (2.8%) and by family history of suicide (6.3%). Findings were consistent in the MCS and CHOP-ED cohorts (explaining 22.6% and 19.3% of the variance in suicide attempt, respectively) despite clinical, demographic, and exposure differences. In all cohorts, compared with youth at the median quintile of the exposomic score, youth at the top fifth quintile were substantially more likely to have made a suicide attempt (OR, 4.3; 95% CI, 2.6-7.2 in the ABCD study; OR, 3.8; 95% CI, 2.7-5.3 in the MCS cohort; OR, 5.8; 95% CI, 4.7-7.1 in the CHOP-ED cohort). Conclusions and Relevance: Results suggest that exposomic scores of suicide attempt provided a generalizable method for risk classification that can be applied in diverse samples from clinical or population settings.

Fighting behavior, conflict perceptions, and firearm access among U.S. adolescents in a pediatric emergency department.

OBJECTIVE: Prior evidence demonstrates that both firearm access and fighting can predict future violence and injury in adolescents. We aimed to examine associations between firearm access with fighting behavior and conflict perception in a sample of adolescents in an urban emergency department (ED) setting. METHODS: In 2023, we conducted a secondary analysis of 13,610 adolescent encounters in the ED of a U.S. children's hospital from 2013 to 2020, using a universally applied, self-administered computerized behavioral health survey. We compared patient characteristics by reported firearm access and fighting behavior using chi-squared tests. Generalized estimating equations (GEE) were used to investigate associations between 1) fighting behavior and firearm access, and 2) between fighting behavior and respondent preference to and reporting of fighting incident to law enforcement after adjusting for race and ethnicity, age, and gender. RESULTS: Approximately one-quarter of the sample reported past year fighting. Youth who reported fighting were more likely to report firearm access (AOR = 1.66, 95%CI = [1.49-1.86]). This association strengthened among youth who perceived continued conflict after a fight (AOR = 2.05, 95%CI = [1.73-2.43]). Youth who perceived continued conflict following a fight were more likely to report (AOR = 1.97, 95%CI = [1.65-2.36]) or want to report (AOR = 2.63, 95%CI = [1.81-3.81]) the fight to law enforcement. CONCLUSIONS: Those perceiving continued conflict after a fight were more likely to report access to firearms and endorse retaliation; however, they were more likely to want to report the fight to law enforcement. These findings highlight the potential for more comprehensive ED risk assessment to reduce retaliation and reinjury for adolescents reporting fighting behavior.

Timing of Mental Health Service Use After a Pediatric Firearm Injury.

OBJECTIVES: To examine how timing of the first outpatient mental health (MH) visit after a pediatric firearm injury varies by sociodemographic and clinical characteristics. METHODS: We retrospectively studied children aged 5 to 17 years with a nonfatal firearm injury from 2010 to 2018 using the IBM Watson MarketScan Medicaid database. Logistic regression estimated the odds of MH service use in the 6 months after injury, adjusted for sociodemographic and clinical characteristics. Cox proportional hazard models, stratified by previous MH service use, evaluated variation in timing of the first outpatient MH visit by sociodemographic and clinical characteristics. RESULTS: After a firearm injury, 958 of 2613 (36.7%) children used MH services within 6 months; of these, 378 of 958 (39.5%) had no previous MH service use. The adjusted odds of MH service use after injury were higher among children with previous MH service use (adjusted odds ratio, 10.41; 95% confidence interval [CI], 8.45-12.82) and among non-Hispanic white compared with non-Hispanic Black children (adjusted odds ratio, 1.29; 95% CI, 1.02-1.63). The first outpatient MH visit after injury occurred sooner among children with previous MH service use (adjusted hazard ratio, 6.32; 95% CI, 5.45-7.32). For children without previous MH service use, the first MH outpatient visit occurred sooner among children with an MH diagnosis made during the injury encounter (adjusted hazard ratio, 2.72; 95% CI, 2.04-3.65). CONCLUSIONS: More than 3 in 5 children do not receive MH services after firearm injury. Previous engagement with MH services and new detection of MH diagnoses during firearm injury encounters may facilitate timelier connection to MH services after injury.

Prediction of Suicide Attempts and Suicide-Related Events Among Adolescents Seen in Emergency Departments.

Importance: Screening adolescents in emergency departments (EDs) for suicidal risk is a recommended strategy for suicide prevention. Comparing screening measures on predictive validity could guide ED clinicians in choosing a screening tool. Objective: To compare the Ask Suicide-Screening Questions (ASQ) instrument with the Computerized Adaptive Screen for Suicidal Youth (CASSY) instrument for the prediction of suicidal behavior among adolescents seen in EDs, across demographic and clinical strata. Design, Setting, and Participants: The Emergency Department Study for Teens at Risk for Suicide is a prospective, random-series, multicenter cohort study that recruited adolescents, oversampled for those with psychiatric symptoms, who presented to the ED from July 24, 2017, through October 29, 2018, with a 3-month follow-up to assess the occurrence of suicidal behavior. The study included 14 pediatric ED members of the Pediatric Emergency Care Applied Research Network and 1 Indian Health Service ED. Statistical analysis was performed from May 2021 through January 2023. Main Outcomes and Measures: This study used a prediction model to assess outcomes. The primary outcome was suicide attempt (SA), and the secondary outcome was suicide-related visits to the ED or hospital within 3 months of baseline; both were assessed by an interviewer blinded to baseline information. The ASQ is a 4-item questionnaire that surveys suicidal ideation and lifetime SAs. A positive response or nonresponse on any item indicates suicidal risk. The CASSY is a computerized adaptive screening tool that always includes 3 ASQ items and a mean of 8 additional items. The CASSY's continuous outcome is the predicted probability of an SA. Results: Of 6513 adolescents available, 4050 were enrolled, 3965 completed baseline assessments, and 2740 (1705 girls [62.2%]; mean [SD] age at enrollment, 15.0 [1.7] years; 469 Black participants [17.1%], 678 Hispanic participants [24.7%], and 1618 White participants [59.1%]) completed both screenings and follow-ups. The ASQ and the CASSY showed a similar sensitivity (0.951 [95% CI, 0.918-0.984] vs 0.945 [95% CI, 0.910-0.980]), specificity (0.588 [95% CI, 0.569-0.607] vs 0.643 [95% CI, 0.625-0.662]), positive predictive value (0.127 [95% CI, 0.109-0.146] vs 0.144 [95% CI, 0.123-0.165]), and negative predictive value (both 0.995 [95% CI, 0.991-0.998], respectively). Area under the receiver operating characteristic curve findings were similar among patients with physical symptoms (ASQ, 0.88 [95% CI, 0.81-0.95] vs CASSY, 0.94 [95% CI, 0.91-0.96]). Among patients with psychiatric symptoms, the CASSY performed better than the ASQ (0.72 [95% CI, 0.68-0.77] vs 0.57 [95% CI, 0.55-0.59], respectively). Conclusions and Relevance: This study suggests that both the ASQ and the CASSY are appropriate for universal screening of patients in pediatric EDs. For the small subset of patients with psychiatric symptoms, the CASSY shows greater predictive validity.

Identifying Suicide Risk in Adolescents With Firearm Access: Screening in the Emergency Department.

OBJECTIVE: This study compares current suicidal ideation, prior suicide attempt and associated self-reported risk factors in adolescents with and without access to firearms. METHODS: Using data from a clinically applied behavioral health assessment completed by adolescents presenting to a tertiary children's hospital emergency department (ED; N = 15,806), we evaluated the association between firearm access (ie, firearm in the home or ability to obtain one within 24 hours), each of the included suicide risk factors (ie, depressive symptoms, trauma victimization, bullying victimization), and our primary outcomes (ie, current suicidal ideation and prior suicide attempt). We performed regression analyses on 3 groups: 1) The overall population; 2) Only the participants with firearm access; and 3) Only the participants without firearm access. RESULTS: Fourteen percent (2179/15,806) of the sample reported a firearm in the home or ability to access one within 24 hours. Overall, 6.8% of participants reported current suicidal ideation and 9.1% reported prior suicide attempt. Youth with firearm access had 1.52 times higher odds of current suicidal ideation and 1.61 times higher odds of prior suicide attempt compared to youth without firearm access. All included suicide risk factors were found to significantly increase the odds of current suicidal ideation and prior suicide attempt in the overall sample; this increase was similar in the groups with and without firearm access. CONCLUSIONS: Adolescents with firearm access have higher odds of suicidal ideation and prior attempt compared to those without firearm access, highlighting the need for universal ED-based screening for suicidality and lethal means.

Differential exposure to gun or knife violence over two decades is associated with sibling differences in depression.

We tested whether exposure to gun or knife violence over two decades is a cause of depression in young adulthood using data from a nationally representative sample in the United States. The National Longitudinal Study of Adolescent to Adult Health is a sample of 20,745 adolescents, assessed in 1994-95 with follow-ups in 1995-1996 (n = 14,738), 2001-2002 (n = 15,197) and 2007-2008 (n = 15,701; 24 to 32 years old). At each wave, respondents reported exposure to gun or knife violence and symptoms of depression. Regression and sibling fixed effects analyses were conducted to test whether cumulative exposure to gun or knife violence was associated with depression. In fully adjusted models, greater cumulative exposure to gun or knife violence was associated with more symptoms of depression (b = 0.12, 95% C. I. = 0.05; 0.19, p < 0.01) and higher risk for clinically significant depression in young adulthood (OR = 1.07, 95% C. I. = 1.02; 1.13, p < 0.01). Results replicated in sibling fixed effects models (b = 0.21, 95% C. I. = 0.01; 0.42, p < 0.05). These quasi-experimental data suggest that exposure to gun or knife violence is a cause of depression in young adulthood.

Two-Year Utilization and Expenditures for Children After a Firearm Injury.

INTRODUCTION: Firearm injuries are a leading cause of morbidity among children, but data on healthcare utilization and expenditures after injury are limited. This study sought to analyze healthcare encounters and expenditures for 2 years after a nonfatal firearm injury. METHODS: A retrospective cohort study was conducted between 2020 and 2022 of children aged 0-18 years with International Classification of Diseases, Ninth Revision/ICD-10 diagnosis codes for firearm injury from 2010 to 2016 in the Medicaid MarketScan claims database. Outcomes included the difference in healthcare encounters and expenditures, including mental health. Descriptive statistics characterized patient demographics and healthcare utilization. Changes in health expenditures were evaluated with Wilcoxon sign rank tests. RESULTS: Among 911 children, there were 12,757 total healthcare encounters in the year before the index firearm injury, 15,548 1 encounters in the year after (p<0.001), and 10,228 total encounters in the second year (p<0.001). Concomitantly, there was an overall increase of $14.4 million in health expenditures ($11,415 per patient) 1 year after (p<0.001) and a $0.8 million decrease 2 years after the firearm injury (p=0.001). The children with low previous expenditures (majority of sample) had sustained increases throughout the second year after injury. There was a 31% and 37% absolute decrease in mental health utilization and expenditures, respectively, among children 2 years after the firearm injury. CONCLUSIONS: Children who experience nonfatal firearm injury have an increased number of healthcare encounters and healthcare expenditures in the year after firearm injury, which is not sustained for a second year. Mental health utilization and expenditures remain decreased up to 2 years after a firearm injury. More longitudinal research on the morbidity associated with nonfatal firearm injuries is needed.

Assault-Related Concussion in a Pediatric Population.

OBJECTIVES: The aim of this study was to compare demographic characteristics, medical care, and outcomes among patients with assault-related concussion (ARC) versus sports and recreation-related concussion (SRC). METHODS: We conducted a retrospective chart review of 124 patients (62 ARC, 62 SRC) aged 8 to 17 years presenting to the care network of a large tertiary care pediatric hospital between July 1, 2012, and June 30, 2014 with a concussion diagnosis at time of presentation. We abstracted patient demographics, initial medical care visit characteristics, and outcome data, and compared proportions using χ2 testing and Fisher exact test and medians using Wilcoxon rank sum test. RESULTS: Patients with ARC were more likely to be Black, publicly insured, and present first for care to the emergency department. Significantly fewer patients with ARC received visio-vestibular testing at initial visit (27% vs 74%, P < 0.001). During recovery, the total number of reported physical, cognitive, emotional, and sleep symptoms did not differ between groups; however, more than twice as many patients with ARC reported decline in grades postinjury compared with patients with SRC (47% vs 20%, P = 0.012). There were trends toward prolonged symptom recovery and time to physician clearance for full return to activities among patients with ARC compared with SRC. CONCLUSIONS: This study highlights potential disparities in the initial evaluation and outcomes of pediatric concussion patients based on mechanism of injury. Patients with ARC were less likely to receive a concussion-specific diagnostic evaluation and reported a greater impact on educational outcomes, suggesting differences in concussion diagnosis and management among assault-injured patients. Further examination in larger populations with prospective studies is needed to address potential inequities in concussion care and outcomes among patients with ARC.

Mental Health Care Following Firearm and Motor Vehicle-related Injuries: Differences Impacting Our Treatment Strategies.

OBJECTIVE: To compare new mental health diagnoses (NMHD) in children after a firearm injury versus following a motor vehicle collision (MVC). BACKGROUND: A knowledge gap exists regarding childhood mental health diagnoses following firearm injuries, notably in comparison to other forms of traumatic injury. METHODS: We utilized Medicaid MarketScan claims (2010-2016) to conduct a matched case-control study of children ages 3 to 17 years. Children with firearm injuries were matched with up to 3 children with MVC injuries. Severity was determined by injury severity score and emergency department disposition. We used multivariable logistic regression to measure the association of acquiring a NMHD diagnosis in the year postinjury after firearm and MVC mechanisms. RESULTS: We matched 1450 children with firearm injuries to 3691 children with MVC injuries. Compared to MVC injuries, children with firearm injuries were more likely to be black, have higher injury severity score, and receive hospital admission from the emergency department ( P <0.001). The adjusted odds ratio (aOR) of NMHD diagnosis was 1.55 [95% confidence interval (95% CI): 1.33-1.80] greater after firearm injuries compared to MVC injuries. The odds of a NMHD were higher among children admitted to the hospital compared to those discharged. The increased odds of NMHD after firearm injuries was driven by increases in substance-related and addictive disorders (aOR: 2.08; 95% CI: 1.63-2.64) and trauma and stressor-related disorders (aOR: 2.07; 95% CI: 1.55-2.76). CONCLUSIONS: Children were found to have 50% increased odds of having a NMHD in the year following a firearm injury as compared to MVC. Programmatic interventions are needed to address children's mental health following firearm injuries.

Evaluating Adolescent Substance Use and Suicide in the Pediatric Emergency Department.

OBJECTIVES: This study evaluates the relationship between substance use and impairment and current suicidal thoughts or behaviors in adolescent patients screened in a pediatric emergency department (ED). METHODS: Data were collected between June 2013 and February 2018 from adolescent patients who presented to a single, urban, pediatric ED. Adolescents completed a computerized, self-administered assessment that evaluates depression, suicide, posttraumatic stress, violence, traumatic exposure, bullying, and substance use. Assessments are administered as standard care to all ED patients aged 14 to 18 years. We used binary logistic regression to estimate the odds of reporting current suicidal thoughts or behaviors associated with patient demographics (ie, age, sex, and race), substance use in the past month, and substance-related impairment. RESULTS: A total of 11,623 adolescent patients (65.4% female and 52.9% African American) completed the assessment. Participants were, on average, 15.7 years old (SD = 1.27). Younger age (odds ratio [OR], 0.79; 95% confidence interval [CI], 0.74-0.84) and substance use impairment (OR, 0.44; 95% CI, 0.33-0.58) decreased the odds of reporting current suicidal thoughts or behaviors, whereas male sex (OR, 1.51; 95% CI, 1.28-1.79) and those with past-month substance use (OR, 1.85; 95% CI, 1.51-2.26) increased the odds. CONCLUSIONS: Recent substance use and male sex are associated with a higher likelihood of adolescents reporting current suicidal thoughts or behaviors during an ED visit. Standardized screening during pediatric ED visits may allow for more efficient evaluation of patients in higher-risk groups.

Association of Neighborhood Gun Violence With Mental Health-Related Pediatric Emergency Department Utilization.

Importance: Many children and adolescents in the United States are exposed to neighborhood gun violence. Associations between violence exposure and children's short-term mental health are not well understood. Objective: To examine the association between neighborhood gun violence and subsequent mental health-related pediatric emergency department (ED) utilization. Design, Setting, and Participants: This location-based cross-sectional study included 128 683 ED encounters for children aged 0 to 19 years living in 12 zip codes in Philadelphia, Pennsylvania, who presented to an urban academic pediatric ED from January 1, 2014, to December 31, 2018. Children were included if they (1) had 1 or more ED visits in the 60 days before or after a neighborhood shooting and (2) lived within a quarter-mile radius of the location where this shooting occurred. Analysis began August 2020 and ended May 2021. Exposure: Neighborhood violence exposure, as measured by whether a patient resided near 1 or more episodes of police-reported gun violence. Main Outcomes and Measures: ED encounters for a mental health-related chief complaint or primary diagnosis. Results: A total of 2629 people were shot in the study area between 2014 and 2018, and 54 341 children living nearby had 1 or more ED visits within 60 days of a shooting. The majority of these children were Black (45 946 [84.5%]) and were insured by Medicaid (42 480 [78.1%]). After adjusting for age, sex, race and ethnicity, median household income by zip code, and insurance, children residing within one-eighth of a mile (2-3 blocks) of a shooting had greater odds of mental health-related ED presentations in the subsequent 14 days (adjusted odds ratio, 1.86 [95% CI, 1.20-2.88]), 30 days (adjusted odds ratio, 1.49 [95% CI, 1.11-2.03]), and 60 days (adjusted odds ratio, 1.35 [95% CI, 1.06-1.72]). Conclusions and Relevance: Exposure to neighborhood gun violence is associated with an increase in children's acute mental health symptoms. City health departments and pediatric health care systems should work together to provide community-based support for children and families exposed to violence and trauma-informed care for the subset of these children who subsequently present to the ED. Policies aimed at reducing children's exposure to neighborhood gun violence and mitigating the mental symptoms associated with gun violence exposure must be a public health priority.

Nonfatal firearm injuries: Utilization and expenditures for children pre- and postinjury.

OBJECTIVE: Firearm injuries are one of the leading preventable causes of morbidity and mortality among children. Limited information exists about the impact of nonfatal firearm injuries on utilization and expenditures. Our objective was to compare health care encounters and expenditures 1 year before and 1 year following a nonfatal firearm injury. METHODS: This was a retrospective cohort study of children 0 to 18 years with ICD-9/ICD-10 diagnosis codes for firearm injury (excluding nonpowder) in the emergency department or inpatient setting from 2010 to 2016 in the Medicaid MarketScan claims database. Outcomes included: (1) difference in health care encounters for 1 year before and 1 year after injury, (2) difference in health care expenditures, and (3) difference in complex chronic disease status. Descriptive statistics characterized patient demographics and health care utilization. Health expenditures were evaluated with Wilcoxon signed-rank tests. RESULTS: Among 1,821 children, there were 22,398 health care encounters before the injury and 28,069 after. Concomitantly, there was an overall increase of $16.5 million in health expenditures ($9,084 per patient). There was a 50% increase in children qualifying for complex chronic condition status after firearm injury. CONCLUSIONS: Children who experience nonfatal firearm injury have increased number of health care encounters, chronic disease classification, and health care expenditures in the year following the injury. Prevention of firearm injuries in this vulnerable age group may result in considerable reductions in morbidity and health care costs.

Prospective Development and Validation of the Computerized Adaptive Screen for Suicidal Youth.

Importance: The rate of suicide among adolescents is rising in the US, yet many adolescents at risk are unidentified and receive no mental health services. Objective: To develop and independently validate a novel computerized adaptive screen for suicidal youth (CASSY) for use as a universal screen for suicide risk in medical emergency departments (EDs). Design, Setting, and Participants: Study 1 of this prognostic study prospectively enrolled adolescent patients at 13 geographically diverse US EDs in the Pediatric Emergency Care Applied Research Network. They completed a baseline suicide risk survey and participated in 3-month telephone follow-ups. Using 3 fixed Ask Suicide-Screening Questions items as anchors and additional items that varied in number and content across individuals, we derived algorithms for the CASSY. In study 2, data were collected from patients at 14 Pediatric Emergency Care Applied Research Network EDs and 1 Indian Health Service hospital. Algorithms were independently validated in a prospective cohort of adolescent patients who also participated in 3-month telephone follow-ups. Adolescents aged 12 to 17 years were consecutively approached during randomly assigned shifts. Exposures: Presentation at an ED. Main Outcome and Measure: A suicide attempt between ED visit and 3-month follow-up, measured via patient and/or parent report. Results: The study 1 CASSY derivation sample included 2075 adolescents (1307 female adolescents [63.0%]; mean [SD] age, 15.1 [1.61] years) with 3-month follow-ups (72.9% retention [2075 adolescents]). The study 2 validation sample included 2754 adolescents (1711 female adolescents [62.1%]; mean [SD] age, 15.0 [1.65] years), with 3-month follow-ups (69.5% retention [2754 adolescents]). The CASSY algorithms had excellent predictive accuracy for suicide attempt (area under the curve, 0.89 [95% CI, 0.85-0.91]) in study 1. The mean number of adaptively administered items was 11 (range, 5-21). At a specificity of 80%, the CASSY had a sensitivity of 83%. It also demonstrated excellent accuracy in the study 2 validation sample (area under the curve, 0.87 [95% CI, 0.85-0.89]). In this study, the CASSY had a sensitivity of 82.4% for prediction of a suicide attempt at the 80% specificity cutoff established in study 1. Conclusions and Relevance: In this study, the adaptive and personalized CASSY demonstrated excellent suicide attempt risk recognition, which has the potential to facilitate linkage to services.

Intimate Partner Violence: Childhood Witnessing and Subsequent Experiences of College Undergraduates.

Previous work links witnessing adult violence in the home during childhood ("witnessing") and adolescent relationship violence, but studies are limited to recent experiences with one or two outcomes, missing the holistic viewpoint describing lifetime experiences across multiple types of violence. We measured associations between witnessing and victimization (being harmed by violence) and perpetration (causing harm by violence) among males and females for the three most common types of adolescent relationship violence (physical, sexual, and emotional), and we assessed whether students experienced multiple outcomes ("polyvictimization/ polyperpetration"). We also compared sex-specific differences to assess for additive effect modification. We used an anonymous, cross-sectional survey with 907 undergraduates attending randomly selected classes at three urban East Coast colleges. Multiple logistic regression and marginal standardization were used to estimate predicted probabilities for each outcome among witnesses and non-witnesses; additive interaction by sex was assessed using quantifiable measures. 214 (24%) students reported witnessing and 403 (44%) students experienced adolescent relationship violence, with 162 (17.9%) and 37 (4.1%) experiencing polyvictimization and polyperpetration, respectively. Witnesses had higher risk than non-witnesses for physical, sexual, and emotional victimization and perpetration. Notably, witnesses also had higher risk for polyvictimization and polyperpetration. Additive effect modification by sex was insignificant at 95% confidence bounds, but distinct patterns emerged for males and females. Except for sexual victimization, female witnesses were more likely than female non-witnesses to experience all forms of victimization, including polyvictimization; they also had higher risk for perpetration, particularly physical perpetration. In contrast, victimization outcomes did not differ for male witnesses, but male witnesses were more likely than male non-witnesses to perpetrate all forms of violence, including polyperpetration.

Factors Associated With Urban Youth and Parent Perceptions of the Preventability of Assault Injury: An Emergency Department Sample.

OBJECTIVES: This study aimed to identify factors associated with urban youth and parent's perception of the preventability of medically attended youth assault injuries to guide future violence prevention strategies. METHODS: Assault-injured youth (n = 188; ages, 10-15 years; 60% male; 96% black) and their parents were recruited from 2 pediatric emergency departments in 2 cities. Mental health, injury severity, circumstances of injury, and family composition were some of the factors explored as cross-sectional predictors of the perception of the preventability of youth assault injury. Separate models were developed using stepwise regression for youth and parents. RESULTS: Sixty-eight (38%) youth and 123 parents (68%) reported that the injury was definitely preventable (χ2 = 9.6250, P < 0.05). For youth, identifying themselves as the aggressor (odds ratio [OR], 0.23, 95% confidence interval [CI], 0.07-0.70) or having been hospitalized for psychiatric illness (OR, 0.21; 95% CI, 0.05-0.85) was associated with lower odds of perceiving their injury as preventable, while being under the care of a mental health professional (OR, 3.87; 95% CI, 1.21-12.39) was associated with higher odds. For parents, being in a household with grandparents (OR, 0.21; 95% CI, 0.04-0.99) or having a child with a learning disability (OR, 0.16; 95% CI, 0.05-0.57) was associated with lower odds of perceiving the injury as preventable. CONCLUSIONS: Several factors in youth and parents were identified as being associated with perception of preventability of injuries in this high-risk population of youth. Youth and parents identified different factors. In addition, although most parents reported that the assault injury sustained by their child was preventable, the opposite was true for youth perceptions. Future violence prevention programs should consider youth and parent perspectives and develop unique strategies to address both their needs.