There are 117.3 million people forcibly displaced because of war, conflict and natural disasters: 40% are children. With growing numbers, many high-income countries have adopted or are considering increasingly restrictive policies of immigration detention. Research on the impact of detention on mental health has focused on adults, although recent studies report on children.

To synthesise data on the impact of immigration detention on children’s mental health.

Systematic searches were conducted in PsycINFO, MEDLINE and Embase databases and grey literature and studies assessed using PRISMA guidelines (PROSPERO registration CRD42023369680). Included studies were quantitative, assessed children younger than 18 years who had been in immigration detention and reported mental health symptoms or diagnoses. Methodological quality was assessed using the Appraisal Tool for Cross-Sectional Studies. Meta-analyses estimated prevalence for major depression and post-traumatic stress disorder (PTSD).

Twenty-one studies reported data on 9620 children. Most studies were cross-sectional, had small sample sizes and used convenience sampling. A profoundly detrimental impact on children’s mental health across a variety of countries and detention settings was demonstrated. Meta-analysis found pooled prevalence of 42.2% for depression [95% CI 22.9, 64.3] and 32.0% for PTSD [95% CI 19.4, 48.0]. Severity of mental health impact increased with exposure to indefinite or protracted held detention.

Immigration detention harms children. No period of detention can be deemed safe, as all immigration detention is associated with adverse impacts on mental health. Our review highlights the urgency of alternative immigration policies that end the practice of detaining children and families.

Autistic people have high levels of mental ill-health and an increased risk of suicide across the lifespan. Yet autistic people report difficulties communicating with healthcare professionals and accessing a range of healthcare services. At the same time, mental healthcare workers in other countries are reporting links between confidence when working with autistic patients and the degree of autism knowledge and training they can access.

We sought to examine what factors helped or hindered Irish mental healthcare colleagues when working with autistic healthcare service users. An online survey using quantitative and qualitative metrics was circulated among psychiatrists who are members of the College of Psychiatrists of Ireland, both in training and at consultant level, from April 2021 to April 2022.

Knowledge of autism was high among psychiatrists (n = 140), but self-efficacy scores were variable, particularly in relation to care pathways. Self-efficacy was better among psychiatrists with caseloads of children and youth or individuals with co-occurring intellectual disabilities. Three key qualitative themes emerged relating to capacity and training of mental health professionals, ways to improve mental health services provision for autistic individuals and also the critical need for co-creation and neurodiversity affirmative care.

The study highlighted critical systemic and professional challenges in providing mental health care to autistic people in Ireland. We provide recommendations for reducing these challenges and for enabling the development of inclusive, evidenced-based care to autistic individuals.

Preexisting epidemiological studies suggest that early pubertal development in males is associated with externalizing (e.g. conduct problems, risky behavior, and aggression) and internalizing (e.g. depression and anxiety) traits and disorders. However, due to problems inherent to observational studies, especially of residual confounding, it remains unclear whether these associations are causal. Mendelian randomization (MR) studies take advantage of the random allocation of genes at conception and can establish causal relationships.

In this study, N = 76 independent genetic variants for male puberty timing (MPT) were derived from a large genome-wide association study (GWAS) on 205,354 participants and used as an instrumental variable in MR studies on 17 externalizing and internalizing traits and psychopathologies utilizing outcome GWAS with 16,400–1,045,957 participants.

In these MR studies, earlier MPT was significantly associated with higher scores for the overarching phenotype of ‘Externalizing Traits’ (b = −0.03, 95% CI [−0.06, −0.01]). However, this effect was likely driven by an earlier age at first sexual contact (b = −0.17, 95% CI [−0.21, −0.13]), without evidence for an effect on further externalizing phenotypes. Regarding internalizing phenotypes, earlier MPT was associated with higher levels of the ‘Depressed Affect’ subdomain of neuroticism (b = −0.04, 95% CI [−0.07, −0.01]). Late MPT was related to higher scores of internalizing traits in early life (b = 0.04, 95% CI [0.01, 0.08]).

This comprehensive MR study supports a causal effect of MPT on specific traits and behaviors. However, no evidence for an effect of MPT on long-term clinical outcomes (depression, anxiety disorders, alcohol dependency, cannabis abuse) was found.

Care planning for recovery and to work towards hospital discharge is integral to good practice in mental health in-patient settings. Authorised leave from hospital, especially for those who are detained, can be used to check readiness for discharge and to maintain social connections that support a patient’s recovery journey. Leave therefore often involves friends and family, or ‘carers’. However, carer involvement in planning leave is limited, and carers struggle with feeling unsupported during the leave.

This study aimed to explore carers’ and mental health practitioners’ subjective experiences of leave in the context of implementing a set of practice guidelines for involving carers in planning and undertaking leave from hospital.

Nine wards in six National Health Service trusts were recruited to implement the guidelines. Interviews were undertaken with carers (n = 6) and practitioners (n = 3) from these implementation wards and with carers (n = 7) from nine usual care wards. A further ten practitioners completed an anonymous online survey. Data were analysed thematically.

Carers’ experiences on both implementation and usual care wards indicated variable levels of involvement, with carers positioned as partners in care, observers of care or outsiders to care. Practitioner perspectives highlighted practical, structural and conceptual challenges in working with carers, which precluded effective implementation of the guidelines.

The guidelines reflected what both carers and practitioners described as good practice, but resource limitations, unclear responsibilities and perceptions of carer roles limited engagement. Implementing approaches to working with carers in in-patient settings requires resourcing and clear role definition within staff–carer relationships.

Developing integrated mental health services focused on the needs of children and young people is a key policy goal in England. The THRIVE Framework and its implementation programme, i-THRIVE, are widely used in England. This study examines experiences of staff using i-THRIVE, estimates its effectiveness, and assesses how local system working relationships influence programme success.

This evaluation uses a quasi-experimental design (10 implementation and 10 comparison sites.) Measurements included staff surveys and assessment of ‘THRIVE-like’ features of each site. Additional site-level characteristics were collected from health system reports. The effect of i-THRIVE was evaluated using a four-group propensity-score-weighted difference-in-differences model; the moderating effect of system working relationships was evaluated with a difference-in-difference-in-differences model.

Implementation site staff were more likely to report using THRIVE and more knowledgeable of THRIVE principles than comparison site staff. The mean improvement of fidelity scores among i-THRIVE sites was 16.7, and 8.8 among comparison sites; the weighted model did not find a statistically significant difference. However, results show that strong working relationships in the local system significantly enhance the effectiveness of i-THRIVE. Sites with highly effective working relationships showed a notable improvement in ‘THRIVE-like’ features, with an average increase of 16.41 points (95% confidence interval: 1.69–31.13, P-value: 0.031) over comparison sites. Sites with ineffective working relationships did not benefit from i-THRIVE (−2.76, 95% confidence interval: − 18.25–12.73, P-value: 0.708).

The findings underscore the importance of working relationship effectiveness in the successful adoption and implementation of multi-agency health policies like i-THRIVE.

Hong Kong’s 3-year dynamic zero-COVID policy has caused prolonged exposure to stringent, pervasive anti-epidemic measures, which poses additional stressors on emotional well-being through pandemic fatigue, beyond the incumbent fear of the pandemic.

To investigate how major policy shifts in the zero-COVID strategy have corresponded with changing relationships between emotional well-being, pandemic fatigue from policy adherence, and pandemic fear, following the pandemic peak to a living-with-COVID policy.

A three-wave repeated cross-sectional study (N = 2266) was conducted on the Chinese working-age population (18–64 years) during the peak outbreak (Wave 1), and subsequent policy shifts towards a living-with-COVID policy during the initial relaxation (Wave 2) and full relaxation (Wave 3) of anti-epidemic measures from March 2022 to March 2023. Non-parametric tests, consisting of robust analysis of covariance tests and quantile regression analysis, were performed.

The severity of all measures was lowered after Wave 1; however, extreme pandemic fears reported in Wave 2 (n = 38, 7.7%) were associated with worse emotional well-being than the pandemic peak (Wave 1), which then subsided in Wave 3. Pandemic fatigue posed greater negative emotional well-being in Wave 1, whereas pandemic fear was the dominant predictor in Waves 2 and 3.

Pandemic fatigue and pandemic fear together robustly highlight the psychological cost of prolonged pandemic responses, expanding on a framework for monitoring and minimising the unintended mental health ramifications of anti-epidemic policies.

The cumulative effects of long-term exposure to pandemic-related stressors and the severity of social restrictions may have been important determinants of mental distress in the time of COVID-19.

This study aimed to investigate mental health among a cohort of Chinese university students over a 28-month period, focusing on the effects of lockdown type.

Depression, anxiety, stress and fear of COVID-19 infection were measured ten times among 188 Chinese students (females 77.7%, meanage = 19.8, s.d.age = 0.97), every 3 months: from prior to the emergence of COVID-19 in November 2019 (T1) to March 2022 (T10).

Initially depression, anxiety and stress dipped from T1 to T2, followed by a sudden increase at T3 and a slow upward rise over the remainder of the study period (T3 to T10). When locked down at university, participants showed greater mental distress compared with both home lockdown (d = 0.35–0.48) and a no-lockdown comparison period (d = 0.28–0.40). Conversely, home lockdown was associated with less anxiety and stress (d = 0.19 and 0.21, respectively), but not with depression (d = 0.13) compared with a no-lockdown period.

This study highlights the cumulative effects of exposure to COVID-19 stressors over time. It also suggests that the way in which a lockdown is carried out can impact the well-being of those involved. Some forms of lockdown appear to pose a greater threat to mental health than others.

This study described the development and assessment of the psychometric properties of the Dissociation-Integration of Self-States Scale (D-ISS). This is a new scale to assess dissociation at the ‘between modes’ or self-state (personality) level. The D-ISS is rooted in cognitive behavioural theory and designed to measure between-mode dissociation (dissociation between self-states) in clinical practice and research.

Study 1: D-ISS scale items were generated and then answered by 344 young adults (16–25 years) who reported experiencing stressful times. An exploratory factor analysis (EFA) was conducted and the results were used to refine the scale to 25 items.

Study 2: The final 25-item D-ISS was completed by 383 adults (18–65 years) who reported experiencing mental health difficulties. A confirmatory factor analysis (CFA) was conducted using the second dataset. Internal consistency, test–retest reliability, convergent validity and divergent validity of the final D-ISS was assessed.

Study 1: The EFA showed a clear 5-factor solution, which was used to refine the D-ISS to a total of 25 items with five items in each factor.

Study 2: The 5-factor solution from Study 1 was confirmed as a good fit by the CFA using the data collected in Study 2. The D-ISS demonstrated good internal reliability and test–retest reliability. The D-ISS showed no correlations with divergent scales. For convergent validity, the D-ISS showed moderate correlations with the Dissociative Experiences Scale (DES-II).

The new D-ISS measure of between-mode dissociation is reliable and valid for the population represented by our sample. Further research into its use in clinical populations is required.

1. (1) To understand and be able to use a new measure of dissociation at the personality or self-states level.

2. (2) To understand the cognitive behavioural model of dissociation.

3. (3) To understand the theoretical underpinnings of the scale, in terms of the effects of childhood and adult adversity and other factors on psychological development.

4. (4) To consider the potential clinical and research applications of the scale.

5. (5) To appreciate the limitations of the research so far and the nature of future research required.

Depression is a growing mental health concern among university students worldwide, including in Thailand. Studies show that between 17 and 40% of Thai university students experience depressive symptoms, although these studies often focus on specific groups and use different measures.

This study aimed to investigate the prevalence and associated factors of depressive disorders among university students across Thailand.

Data were collected with the HAPPINOMETER and the Patient Health Questionnaire-9 scale as part of a nationwide cross-sectional survey. A total of 14 621 students from 33 universities participated in the survey. A series of binary logistic regression analyses were performed to examine the effect of sociodemographic characteristics and health behaviours on the presence of depression.

The results revealed that 31.4% of students experienced depressive symptoms, with 14.2% having major depressive disorder. The students who identified as non-binary had the highest odds of having depression (adjusted odds ratio 2.10, 95% CI 1.7–2.6, P < 0.001). Other specific subgroups were also found to be particularly vulnerable, including women, fourth-year students and those studying in Bangkok, without part-time jobs, living alone and engaging in risky health behaviours like smoking, heavy drinking and poor diet.

The findings underscore the need for comprehensive mental health support and targeted interventions within Thai universities, especially for at-risk subpopulations. Leveraging the existing collaborative networks among Thai universities presents a unique opportunity to mount a coordinated effort in developing and implementing comprehensive mental health strategies tailored to the needs of this vulnerable population.

Asylum seekers have difficulty gaining access to mental healthcare. Lack of understanding of asylum seekers’ mental illness explanatory models appears to be an important barrier. Gaining a better understanding of these explanatory models is crucial for ensuring the inclusion of asylum seekers in healthcare services. The Cultural Formulation Interview (CFI) might help to explore asylum seekers’ explanatory models of mental illness.

To analyse asylum seekers’ explanatory models as elicited by the CFI.

The CFI and its first supplementary module were carried out with asylum seekers with mental health problems. Transcriptions of the interviews underwent reflexive thematic analysis within a social constructivist framework.

In the analysis of 25 illness narratives, three major themes characterising asylum seekers’ explanatory models were identified: a burden of the past, a disenabling current reality, and a personal position and individual experience.

The interplay among pre-, peri- and post-migration experiences, having a continuous impact on asylum seekers’ mental health, was highlighted by the themes ‘a burden of the past’, and ‘a disenabling current reality’. The theme ‘a personal position and individual experience’ revealed how the CFI enables self-determination in clinical encounters by embracing uncertainty and questioning the medicalisation of distress. The analysis characterises asylum seekers’ symptoms as a personal idiom of distress within socio-relational contexts. The CFI provides a clinically useful framework for exploring asylum seekers’ explanatory models and fostering dynamic understanding.