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• It is feasible and acceptable to use EMA to assess suicidality among young people with mood disorder in the Chinese cultural and social context. • Despite decreased adherence over time, participants reported an overall positive experience with the EMA study (e.g., helpful, friendly, and acceptable). However, a small proportion of participants had negative experiences (e.g., annoyance and missing prompts). • Future EMA studies should consider the frequency of surveys, the burden perceived by individuals, and individual differences when designing the EMA protocol. Suicidal thoughts and behaviors (STBs) are increasing among young people (aged 12–24 years) in China. Although Ecological Momentary Assessment (EMA) has been increasingly used to study STBs worldwide, no study has been conducted on young people with mood disorders (MD) in China. This mixed-method study aimed to evaluate the feasibility and acceptability of suicide risk monitoring in 75 young people with MD. Participants completed five to eight daily EMA surveys and wore smart bands for the EMA study. Semi-structured interviews were used to collect feedback. High adherence to EMA surveys (73.0 %) and smart bands (87.4 %) indicated feasibility. Participants reported an overall positive experience with the EMA study (helpful, friendly, and acceptable). Additionally, the reasons they were willing to comply with the EMA study were: (1) seeing the possibility of returning to "normal," and (2) experiencing the process of returning. However, a small proportion of participants had negative experiences (e.g., annoyance and missing prompts). The results of this mixed-methods study provide preliminary support for the feasibility and acceptability of using EMA (combined smartphones and wearable sensor devices) to assess suicidality among young people with MD in the Chinese cultural and social context. [ABSTRACT FROM AUTHOR]

• 3 % of youth experienced homelessness during the past 30 days. • 21.3 % of youth experienced suicidal ideation and 10.9 % attempted suicide. • Sexual minority youth had almost doubled the odds of experiencing homelessness. • Non-Hispanic Black youth had 2.58 times higher odds of experiencing homelessness. • Experiencing homelessness was associated with suicidal ideation, planning, and attempt. Although various studies have examined factors associated with suicidal behaviors among youth, few studies have investigated the association between youth experiencing homelessness (YEH) and suicidal thoughts and behaviors (STBs) using a large nationally representative sample. The objectives of this study were to investigate prevalence of YEH and its association with STBs. Data for this study came from the 2021 Youth Risk Behavior Survey. An analytic sample of 17,033 youth aged 14–18 (51.7 % male) was analyzed using binary logistic regression. Of the 17,033 youth examined, 3 % experienced homelessness during the past 30 days, 21.3 % experienced suicidal ideation, 17.3 % made a suicide plan, and 10.9 % attempted suicide during the past 12 months. Controlling for demographic characteristics and feeling sad or hopeless, YEH was associated with 2.48 times higher odds of experiencing suicidal ideation (AOR =2.48, p <.001), 2.46 times higher odds of making a suicide plan (AOR =2.46, p <.001), and 4.38 times higher odds of making a suicide attempt (AOR =4.38, p <.001). The findings of this study highlight the importance of identifying youth who are at risk of experiencing homelessness to ensure early interventions are put in place to prevent suicidal behaviors. [ABSTRACT FROM AUTHOR]

• Deliberate self-harm diversity predicts suicidal ideation and suicide attempts. • Engaging in high severity deliberate self-harm only predicts suicide attempts. • Engaging in both mild and high deliberate self-harm predicts suicidal ideation and suicide attempts. Deliberate self-harm (DSH) in adolescence is a predictor of suicidal thoughts and behaviors (STBs). However, there is still a lack of research systematizing the association between DSH and STBs. Therefore, our main goal was to analyze if DSH diversity and severity predicted suicidal ideation and suicide attempts. Our sample comprised 237 Portuguese adolescents and young adults with a history of DSH, from community (80.2%, n = 190) and clinical (19.8%, n = 47) settings, aged between 14 and 23 years (M = 17.31, SD=1.36). Results showed that DSH diversity and severity were significant predictors of suicidal ideation and suicide attempts. These results were further discussed, underlining the impact that DSH has for suicide risk and highlighting the need to address further variables to understand these suicidality trajectories. [ABSTRACT FROM AUTHOR]

• 31.5% patients with suicidal thoughts or behaviors recurred in 1-year follow-up. • Around 70% % of recurrences occurred in the first 6 months. • Seeking psychiatric help for non-STB reasons was a common predictor for all STB. • Previous attempts and hospitalization after index episode predicted re-attempts. • Suicidal ideation at the index predicted recurrence in the form of suicidal ideation. Suicidal thoughts and behaviors (STB) include suicidal ideation (SI), suicide attempt (SA) and completed suicide. We aimed to identify recurrence predictors of any type of STB, and separately for SA and SI, and to analyze the time until event. A 108-subject cohort presenting at Emergencies with STB was followed during one year. Recurrence risk factors were investigated by multiple Cox survival regressions. Within one year, 31.5%, 23.1% and 9.3% patients recurred with any STB, SA, and SI respectively. Most recurrences (~70%) occurred within the first 6 months. Seeking emergency psychiatric assistance for problems other than STB during follow-up was a common predictor for recurrence of any STB, and SA and SI specifically. Previous SA history and contact with psychiatry outpatient units during follow-up predicted both STB in general and SA in particular. A specific predictor for SA was hospitalization at index, while SI recurrence was associated to SI at index. These results highlight the importance of early intervention and multidisciplinary follow-up considering concurrent psychosocial or adaptive problems. A careful exploration at Emergencies is needed to target potential predictors. [ABSTRACT FROM AUTHOR]

• A novel scale measuring histories of social punishment (HoSP) in childhood was assessed. • The scale showed very good to excellent construct, convergent, and divergent validity. • Social punishment was strongly linked with depression, OCDs, and suicidal acts. • Suicide prevention priorities should target such adverse social relationships. There is robust evidence for relationships between adverse events experienced in childhood and mental health problems experienced as an adult. However, the measurement of perceptions of different types of adverse relationships in childhood, especially those that are in social contexts, is lacking. Given the absence of an appropriate tool to measure perceptions of adverse social relationships in childhood within English-speaking populations, we endeavored to examine the construct validity of the English version of the History of Social Punishment (HoSP) scale. In total, 557 adults from the extant community participated by completing self-report scales that measured perceptions of adverse childhood relationships, symptoms of depression, obsessive-compulsive disorder (OCD), hoarding disorder (HD), body dysmorphic disorder (BDD), and suicidal experiences. Results demonstrated that the HoSP is a sound psychometric tool to evaluate perceptions of adverse social relationships within English-speaking populations. A strong association between perceptions of adverse social relationships in childhood, common mental health problems, and suicidal behaviors was established. These results provide robust evidence for the importance of screening for experiences of social adversities and for developing clinical interventions that directly target these experiences. [ABSTRACT FROM AUTHOR]

• The interpersonal psychological theory of suicide is understudied in adolescents. • This study tested if IPTS variables relate to suicidality on hospital admission. • It also tested if they predict rehospitalization or suicide attempt within 90 days. • We found that IPTS constructs associated with suicidality on admission. • IPTS constructs did not predict rehospitalization or suicide attempt. The interpersonal theory of suicide (IPTS) has been widely studied in adults, but not adolescent populations at acute risk for suicide. Accordingly, this study aimed to evaluate IPTS clinical utility in a high-risk sample of suicidal adolescent inpatients. We assessed whether constructs of the IPTS (1) are associated with suicidal thoughts and behaviors (STBs) on admission to a psychiatric hospitalization, and (2) prospectively predict suicide attempt (SA) or psychiatric rehospitalization 90 days after discharge. On admission, adolescent patients self-reported recent STBs, perceived burdensomeness (PB), thwarted belongingness (TB), and depression. Parents reported their child's rehospitalization and suicide attempts 90 days after discharge. Generalized linear regression modelling was used to determine how key constructs of the IPTS are associated with STBs prior to admission and whether they prospectively predict SA or rehospitalization 90 days after discharge. IPTS constructs did not predict rehospitalization or SA within 90 days of discharge. Although PB and TB interacted to associate with prehospitalization SI frequency, and PB, TB and NSSI interacted to associate with prehospitalization SA, the nature of these interactions were not as the IPTS predicts. IPTS constructs are relevant proximal predictors of prehospitalization STB in adolescents, but may operate differently than in adults. [ABSTRACT FROM AUTHOR]