Alcohol use and suicide-related outcomes in people with a diagnosis of schizophrenia: a comprehensive systematic review and meta-analysis.

Suicide is the leading cause of unnatural death among people with a diagnosis of schizophrenia. Alcohol use is a prevalent comorbid feature of schizophrenia and a modifiable risk factor for suicide. We conducted a prospectively registered (PROSPERO, CRD42022358214) systematic review and meta-analysis to quantify the relationship between alcohol use and suicide-related outcomes in schizophrenia.We searched Medline, Embase, and PsycINFO for cross-sectional, case-control and longitudinal studies using exhaustive terms from database inception to December 2022 inclusive. Computation of odds ratios (ORs) and hazard ratios (HRs) were performed using a random-effects model with DerSimonian-Laird estimation. We also evaluated publication bias, study quality, and performed subgroup analysis and meta-regression. Fifty studies, comprising 65 samples, met eligibility criteria. Overall, alcohol use was associated with suicide (OR 1.38, 95% CI 1.21-1.58; HR = 1.32, 95% CI 1.00-1.74), attempted suicide (OR 1.69, 95% CI 1.45-1.98), and suicidal ideation (OR 1.69, 95% CI 1.22-2.34). While there was no evidence of publication bias, between-sample heterogeneity was moderate in analyses of attempted suicide (I2 = 39.6%, p = 0.01) and suicidal ideation (I2 = 56.0%, p = 0.01). Summary effects were significant in all subgroups except for longitudinal studies of attempted suicide (OR 1.60, 95% CI 0.86-3.00) and studies of suicidal ideation using gender combined samples (OR 1.63, 95% CI 0.99-2.67). Alcohol use is significantly associated with suicide-related outcomes in schizophrenia. Clinicians should routinely inquire about alcohol use in mental health services to focus preventative treatment efforts.

The interplay between suicidal experiences, psychotic experiences and interpersonal relationships: a qualitative study.

BACKGROUND: Suicidal thoughts, acts, plans and deaths are considerably more prevalent in people with non-affective psychosis, including schizophrenia, compared to the general population. Social isolation and interpersonal difficulties have been implicated in pathways which underpin suicidal experiences in people with severe mental health problems. However, the interactions between psychotic experiences, such as hallucinations and paranoia, suicidal experiences, and the presence, and indeed, absence of interpersonal relationships is poorly understood and insufficiently explored. The current study sought to contribute to this understanding. METHODS: An inductive thematic analysis was conducted on transcripts of 22, individual, semi-structured interviews with adult participants who had both non-affective psychosis and recent suicidal experiences. A purposive sampling strategy was used. Trustworthiness of the analysis was assured with researcher triangulation. RESULTS: Participants relayed both positive and negative experiences of interpersonal relationships. A novel conceptual model is presented reflecting a highly complex interplay between a range of different suicidal experiences, psychosis, and aspects of interpersonal relationships. Three themes fed into this interplay, depicting dynamics between perceptions of i. not mattering and mattering, ii. becoming disconnected from other people, and iii. constraints versus freedom associated with sharing suicidal and psychotic experiences with others. CONCLUSION: This study revealed a detailed insight into ways in which interpersonal relationships are perceived to interact with psychotic and suicidal experiences in ways that can be both beneficial and challenging. This is important from scientific and clinical perspectives for understanding the complex pathways involved in suicidal experiences. TRIAL REGISTRATION: ClinicalTrials.gov (NCT03114917), 14th April 2017. ISRCTN (reference ISRCTN17776666 .); 5th June 2017). Registration was recorded prior to participant recruitment commencing.

What is important to service users and staff when implementing suicide-focused psychological therapies for people with psychosis into mental health services?

Introduction: Suicide is a leading cause of death globally. People with psychosis are at increased risk of suicide death and up to half experience suicidal thoughts and/or engage in suicidal behaviors in their lifetime. Talking therapies can be effective in alleviating suicidal experiences. However, research is yet to be translated into practice, demonstrating a gap in service provision. The barriers and facilitators in therapy implementation require a thorough investigation including the perspectives of different stakeholders such as service users and mental health professionals. This study aimed to investigate stakeholders' (health professionals and service users) perspectives of implementing a suicide-focused psychological therapy for people experiencing psychosis in mental health services. Methods: Face-to-face, semi-structured interviews with 20 healthcare professionals and 18 service users were conducted. Interviews were audio recorded and transcribed verbatim. Data were analyzed and managed using reflexive thematic analysis and NVivo software. Results: For suicide-focused therapy to be successfully implemented in services for people with psychosis, there are four key aspects that need to be considered: (i) Creating safe spaces to be understood; (ii) Gaining a voice; (iii) Accessing therapy at the right time; and (iv) Ensuring a straightforward pathway to accessing therapy. Discussion: Whilst all stakeholders viewed a suicide-focused therapy as valuable for people experiencing psychosis, they also recognize that enabling successful implementation of such interventions will require additional training, flexibility, and resources to existing services.

Acceptability of a novel suicide prevention psychological therapy for people who experience non-affective psychosis.

OBJECTIVES: Suicide is a leading cause of death worldwide. People experiencing psychosis are at increased risk of death by suicide. Talking therapies can alleviate suicidal thoughts, plans, and attempts. Therapies need to also be acceptable to recipients. The aim of this study was to investigate the views on psychological therapy for people experiencing psychosis and suicidality using the Theoretical Framework of Acceptability. DESIGN: Qualitative interview study. METHODS: Participants were recruited from a randomised controlled trial comparing suicide prevention psychological therapy with treatment as usual. Individuals had a diagnosis of non-affective psychosis and experience of suicidal thoughts, plans and/or attempts. To assess the acceptability of the therapy, semi-structured interviews were conducted with 20 participants randomised to receive therapy. Data were deductively analysed using an adaptation of the Theoretical Framework of Acceptability. RESULTS: Interviews (Mean = 45 min) were conducted and audio recorded with 21 participants. Data were organised into six themes: 1. Affective attitude, 2. Burden, 3. Alliance, 4. Intervention coherence, 5. Perceived effectiveness, and 6. Self-efficacy. There was no evidence of issues relating to domains of ethicality and opportunity costs associated with receiving therapy. CONCLUSIONS: Talking about suicide was difficult and, at times, distressing, but it was perceived to be useful for understanding experiences. To be acceptable, it is important for therapists to ensure that clients' understanding of therapy aligns with expectations of effectiveness and to invest in building strong therapeutic alliances. Future research will benefit from examining therapists' experiences of delivering therapy through different modes (e.g. online, telephone).

Psychological Resilience to Suicidal Experiences in People with Non-Affective Psychosis: A Position Paper.

It is important to understand the psychological factors which underpin pathways to suicidal experiences. It is equally as important to understand how people develop and maintain resilience to such psychological factors implicated in suicidal experiences. Exploring optimal routes to gaining this understanding of resilience to suicidal thoughts and acts in people with severe mental health problems, specifically non-affective psychosis, was the overarching aim of this position paper. There are five central suggestions: 1. investigating resilience to suicidal experiences has been somewhat over-looked, especially in those with severe mental health problems such as schizophrenia; 2. it appears maximally enlightening to use convergent qualitative, quantitative and mixed research methods to develop a comprehensive understanding of resilience to suicide; 3. relatedly, involving experts-by-experience (consumers) in suicide research in general is vital, and this includes research endeavours with a focus on resilience to suicide; 4. evidence-based models of resilience which hold the most promise appear to be buffering, recovery and maintenance approaches; and 5. there is vast potential for contemporary psychological therapies to develop and scaffold work with clients centred on building and maintaining resilience to suicidal thoughts and acts based on different methodological and analytical approaches which involve both talking and non-talking approaches.

Psychometric properties of the Suicidal Ideation Attributes Scale (SIDAS) in a longitudinal sample of people experiencing non-affective psychosis.

BACKGROUND: Suicidal ideation is a key precursor for suicide attempts and suicide deaths. Performing routine screening of suicide precursors can help identify people who are at high risk of death by suicide. This is, arguably, an important suicide prevention effort. The aim of this study was to assess the validity, reliability, and factor structure of the Suicidal Ideation Attributes Scale (SIDAS) in a three-month longitudinal study with people with a diagnosis of schizophrenia or non-affective psychosis and experiences of suicidal ideation and/or behaviours. It was predicted that the SIDAS would have high internal consistency, test-retest reliability, convergent, discriminant and construct validity. METHODS: Ninety-nine participants experiencing psychosis completed the SIDAS at baseline and 89 participants completed it 3 months later. Additionally, participants completed a demographic questionnaire, the Beck Scale for Suicide Ideation, the Beck Hopelessness Scale, and the Defeat and Entrapment Scales. The internal consistency, test-retest reliability, convergent validity, and discriminant validity of the SIDAS were investigated in comparison to other constructs. Factor analysis was performed to examine the factor structure of the scale. RESULTS: Principal component analysis yielded a theoretically coherent one-dimensional factor structure of SIDAS, suggesting good construct validity (PCA = .71). The SIDAS had high internal consistency (α = .89) and good test-retest reliability (α = .73). It was highly correlated with other self-report measures, including the Beck Scale for Suicide Ideation, Beck Hopelessness Scale, Defeat and Entrapment scales, indicating excellent construct validity. CONCLUSION: The SIDAS is a valid and reliable self-report instrument for assessing the severity of suicidal ideation in a population of people with a diagnosis of schizophrenia or non-affective psychosis. Further research should test the psychometric properties of the scale in individuals experiencing different mental health problems in cross-cultural settings, in order to establish its broader validity, reliability, and clinical utility.

Using my Demons to Make Good: The Short- and Long-Term Impact of Participating in Suicide-Related Research.

Participation in suicide-related research is generally associated with more positive than negative outcomes. However, sparse research has examined the longevity of any effects of participation. Here, we report the first qualitative examination of both the immediate and long-term views of participating in suicide-related research interviews. Thematic analysis indicated that participants had positive experiences, including increased altruism and self-understanding. For some participants, these benefits remained in the months post-participation. Follow-up data revealed that participants can be susceptible to short-term dips in mood, which may not emerge until a few hours/days post-participation. However, any negative effects of participation were confined to the days immediately following the study. Participant-informed recommendations were developed to support researchers in optimizing the well-being of participants in suicide-related research.

Psychological resilience to suicidal thoughts and behaviours in people with schizophrenia diagnoses : A systematic literature review.

PURPOSE: Suicide deaths are a major concern in people with schizophrenia diagnoses. However, many people with such diagnoses do not attempt suicide, nor die by suicide, suggesting that some individuals are resilient to the impact of suicide triggers. This systematic literature review aimed to (1) appraise the evidence for psychological factors which confer resilience to suicidal thoughts and behaviours, and (2) categorize these psychological factors into broader psychological constructs which characterize resilience. METHODS: The review was conducted in accordance with the PRISMA guidelines for the reporting of systematic reviews. A literature search of four electronic databases (Web of Science, PubMed, PsycINFO, and MEDLINE) was conducted. A quality evaluation of the included studies was carried out by two independent researchers using a quality assessment tool. RESULTS: Psychological factors from 27 studies were categorized into four constructs: (1) perceived social support, (2) holding religious and spiritual beliefs, (3) identifying reasons for living, and (4) perceived positive personal skills and attributes. CONCLUSIONS: The limited literature showed that resilience is important in understanding suicidal thoughts and behaviours in people with schizophrenia diagnoses. There is a need for prospective research that investigates moderating effects of psychological resilience in the pathways to suicidal thoughts and behaviours in people with schizophrenia diagnoses. PRACTITIONER POINTS: Novel evidence for four psychological constructs which may confer resilience to suicidal thoughts and behaviours in people with schizophrenia diagnoses. Strong evidence for the impact of perceived social support and appraisals of personal skills and attributes on the severity of suicidal experiences in people with schizophrenia diagnoses. There was equivocal evidence for the effect of holding religious and spiritual beliefs on suicide attempts. Clinical practice would benefit from assessing perceived personal attributes and levels of social support from significant others and health professionals.

Factors that contribute to psychological resilience to suicidal thoughts and behaviours in people with schizophrenia diagnoses: qualitative study.

BACKGROUND: Suicide is a leading cause of premature death in people with a diagnosis of schizophrenia. Although exposure to stressors can play a part in the pathways to death by suicide, there is evidence that some people with a diagnosis of schizophrenia can be resilient to the impact of suicide triggers. AIMS: To investigate factors that contribute to psychological resilience to suicidal thoughts and behaviours from the perspectives of people with a diagnosis of schizophrenia. METHOD: A qualitative design was used, involving semi-structured, face-to-face interviews. Twenty individuals with non-affective psychosis or schizophrenia diagnoses who had experience of suicide thoughts and behaviours participated in the study. The interviews were audio-recorded, transcribed verbatim and examined using inductive thematic analysis. RESULTS: Participants reported that psychological resilience to suicidal thoughts and behaviours involved ongoing effort. This ongoing effort encompassed: (a) understanding experiences (including reconciliation to mental health experiences and seeking reasons to live), (b) active behaviours (including talking to people and keeping occupied), and (c) relationship dynamics (including feeling supported by significant others and mental health professionals). CONCLUSIONS: Psychological resilience was described as a dynamic process that developed over time through the experiences of psychosis and the concomitant suicidal experiences. Psychological resilience can be understood using a multicomponential, dynamic approach that integrates buffering, recovery and maintenance resilience models. In order to nurture psychological resilience, interventions should focus on supporting the understanding and management of psychosis symptoms and concomitant suicidal experiences. DECLARATION OF INTEREST: None.

Qualitative analysis of ward staff experiences during research of a novel suicide-prevention psychological therapy for psychiatric inpatients: Understanding the barriers and facilitators.

BACKGROUND: Suicide prevention is a global priority. Psychiatric hospitalization presents an opportunity to intervene positively with, for example, psychological therapies. However, evidenced-based suicide-prevention psychological treatments are rarely available on in-patient wards. Understanding staff engagement with research investigating suicide-prevention psychological treatments is crucial for their effective, efficacious, and pragmatic implementation. A pilot randomised control trial and feasibility study of Cognitive Behavioural Suicide Prevention therapy provided the opportunity for a qualitative investigation of staff experiences and views of a psychological intervention for people with suicidal experiences on psychiatric in-patient wards. AIMS: To investigate staff acceptability of Cognitive Behavioural Suicide Prevention therapy for psychiatric inpatients based on their perceptions of their experiences during the conduct of a clinical trial. METHOD: Transcribed audio-recordings of qualitative interviews and a focus group (n = 19) of purposively sampled staff from eight psychiatric wards were analysed using inductive Thematic Analysis. RESULTS: Facilitators and barriers were identified for: i) the conduct of the research, and, ii) the suicide-prevention intervention (Cognitive Behavioural Suicide Prevention therapy). Research-related barriers comprised communication difficulties between staff and researchers, and increased staff workload. Research-related facilitators included effective staff/researcher relationships, and alignment of the intervention with organisational goals. Suicide-prevention intervention-related barriers comprised staffs' negative beliefs about suicide which impacted on their referral of inpatients to the clinical trial, and staff perceptions of insufficient information and unfulfilled expectations for involvement in the therapy. Facilitators included staff beliefs that the therapy was beneficial for inpatients, the service and their own clinical practice. CONCLUSIONS: Staff beliefs that 'suicide-talk' could precipitate suicidal behaviour resulted in covert gatekeeping and restricted referral of only inpatients judged as stable or likely to engage in therapy, which may not be those who could most benefit. Such threats to sample representativeness have implications for future therapy research design. The findings provide novel information for researchers and practitioners regarding the conduct of psychological treatment and research in psychiatric units.

Feasibility and acceptability of suicide prevention therapy on acute psychiatric wards: randomised controlled trial.

BACKGROUND: Suicidal behaviour is common in acute psychiatric wards resulting in distress, and burden for patients, carers and society. Although psychological therapies for suicidal behaviour are effective in out-patient settings, there is little research on their effectiveness for in-patients who are suicidal.AimsOur primary objective was to determine whether cognitive-behavioural suicide prevention therapy (CBSP) was feasible and acceptable, compared with treatment as usual (TAU) for in-patients who are suicidal. Secondary aims were to assess the impact of CBSP on suicidal thinking, behaviours, functioning, quality of life, service use, cost-effectiveness and psychological factors associated with suicide. METHOD: A single-blind pilot randomised controlled trial comparing TAU to TAU plus CBSP in in-patients in acute psychiatric wards who are suicidal (the Inpatient Suicide Intervention and Therapy Evaluation (INSITE) trial, trial registration: ISRCTN17890126). The intervention consisted of TAU plus up to 20 CBSP sessions, over 6 months continuing in the community following discharge. Participants were assessed at baseline and at 6 weeks and 6 months post-baseline. RESULTS: A total of 51 individuals were randomised (27 to TAU, 24 to TAU plus CBSP) of whom 37 were followed up at 6 months (19 in TAU, 18 in TAU plus CBSP). Engagement, attendance, safety and user feedback indicated that the addition of CBSP to TAU for in-patients who are acutely suicidal was feasible and acceptable while on in-patient wards and following discharge. Economic analysis suggests the intervention could be cost-effective.DiscussionPsychological therapy can be delivered safely to patients who are suicidal although modifications are required for this setting. Findings indicate a larger, definitive trial should be conducted.Declaration of interestThe trial was hosted by Greater Manchester Mental health NHS Trust (formerly, Manchester Mental Health and Social Care NHS Trust). The authors are affiliated to the University of Manchester, Greater Manchester Mental Health Foundation Trust, Lancashire Care NHS Foundation trust and the Manchester Academic Health Sciences Centre. Y.A. is a trustee for a North-West England branch of the charity Mind.

A qualitative analysis of suicidal psychiatric inpatients views and expectations of psychological therapy to counter suicidal thoughts, acts and deaths.

BACKGROUND: Suicide is a global problem and suicidal behavior is common in acute psychiatric wards. Inpatient suicides regularly occur with 10.4/100,000 such deaths recorded in the UK in 2016. Inpatient suicides are potentially the most avoidable of all suicides as inpatients have 24-h staff contact. Current inpatient treatment prioritizes maintenance of physical safety by observation, medication and general supportive measures, however efficacious and effective specific treatments are lacking. Psychological treatments have a growing evidence base for suicide prevention yet provision of inpatient therapy is uncommon. The present qualitative study aimed to understand the patient acceptability issues by investigating suicidal inpatients views and expectations of a novel suicide-focussed cognitive behavioural psychological therapy which was nested alongside a pilot clinical trial of the intervention. METHODS: Thematic analysis of semi-structured individual qualitative interviews with twenty suicidal psychiatric inpatients to investigate their views and expectations about ward-based suicide-focused psychological treatment. RESULTS: Two main themes were identified. The first, 'A therapy that works', revealed inpatients' views of the necessary components for effective ward-based suicide-focused psychological therapy. The second, 'Concerns about in-patient suicide-focused therapy', depicted their fears about engaging in this treatment. Results suggested that suicide-focused psychological therapy was cautiously welcomed by inpatients' whose narratives expressed their needs, priorities and concerns. Further data analysis enabled formation of a user-informed model of suicide-focussed psychological therapy which offers guidance for researchers and clinicians. CONCLUSIONS: We conclude that hospitalization of suicidal individuals offers a critical opportunity to intervene with effective treatment to preserve life and that suicide-focussed psychological therapy is likely to be well received by suicidal inpatients warranting further testing with a sufficiently powered definitive trial. It is important that provision of ward-based psychological therapy for suicidal inpatients addresses the considerable context-specific challenges inherent in this setting. TRIAL REGISTRATION NUMBER: ISRCTN 17890126 , Registry: UK Clinical Trials Gateway, Date of registration: 22/04/15, Date of enrolment of first participant to the trial: 20/05/14 (retrospectively registered).

Delivery of cognitive-behaviour therapy for psychosis: a service user preference trial.

BACKGROUND: Clinical guidelines recommend cognitive behaviour therapy (CBT) for people with psychosis, however, implementation is poor and not everyone wishes to engage with therapy. Understanding service user (SU) preferences for receiving such treatments is a priority for services. AIMS: To explore SU preferences and outcomes of different methods of delivering CBT for psychosis. METHOD: SUs experiencing psychosis could choose between treatment as usual (TAU); TAU plus telephone-delivered CBT with self-help, CBT recovery manual (TS); high support CBT (HS - TAU plus TS plus group sessions) or randomisation. Participants received their option of choice and were followed-up on several outcomes over 9 and 15 months. RESULTS: Of 89 people recruited, three chose to be randomised and 86 expressed a treatment preference (32 chose TAU, 34 chose TS, 23 chose HS). There were few differences between those who chose therapy compared to those who chose TAU. Those who had more positive impacts from their symptoms were significantly more likely to choose TAU. CONCLUSIONS: Most people had strong preferences about treatment delivery and a substantial number did not wish to receive additional therapy. These findings have to be considered when planning and allocating resources for people with psychosis.

Exploring service users', carers' and professionals' perspectives and experiences of current antipsychotic prescribing: A qualitative study.

Objectives Shared decision-making is the pinnacle of patient-centred care; mental health stakeholders value shared decision-making but find it difficult to enact. The objective was to compare and synthesise mental health stakeholder views on antipsychotic prescribing in one NHS Trust, to understand potential reasons for the difficult enactment of shared decision-making in practice. Methods We conducted 12 interviews and 5 focus groups with 33 mental health stakeholders, after obtaining their informed consent. They shared their experiences in and perceptions of antipsychotic prescribing and were recruited from Manchester Mental Health and Social Care Trust. Results Stakeholders agreed that successful shared decision-making demands a collaborative approach. We elucidated a striking divergence in views of the decision-making process and understanding of collaboration. Nurses, consultants and the pharmacist seemed most satisfied with the amount of collaboration but most pessimistic about the scope for it. Carers and most service users did not feel that there was any collaboration. Discussion Comparison of perspectives demonstrated the complexity of shared decision-making which is not addressed in current operational definitions or policy or nursing practice initiatives. The findings have the potential to progress initiatives in the mental health field from those that emphasise the need for shared decision-making to those that develop tools to promote shared decision-making.

Exploring the potential implementation of a tool to enhance shared decision making (SDM) in mental health services in the United Kingdom: a qualitative exploration of the views of service users, carers and professionals.

BACKGROUND: As a response to evidence that mental health service users and carers expect greater involvement in decisions about antipsychotic medication choice and prescribing, shared decision-making (SDM) has increasingly come to be viewed as an essential element of person-centred care and practice. However, this aspiration has yet to be realised in practice, as service users and carers continue to feel alienated from healthcare services. Existing understanding of the factors affecting the use of tools to support SDM is limited to inter-individual influences and wider factors affecting potential implementation are underexplored. AIM: To explore the potential use of a tool designed to enhance collaborative antipsychotic prescribing from the perspectives of secondary care mental health service users, carers and professionals. METHODS: We conducted a qualitative study (semi-structured interviews and focus groups) using a convenience sample of 33 participants (10 mental health service users, 10 carers and 13 professionals) involved in antipsychotic prescribing in one Trust in the North of England. Participants were asked about the potential implementation of a tool to support SDM within secondary mental health services. Framework analysis incorporating the use of constant comparative method was used to analyse the data. RESULTS: The study identified a divergence in the views of service users and professionals, including a previously undocumented tendency for stakeholder groups to blame each other for potential implementation failure. This dissonance was shaped by meso and macro level influences relating to paternalism, legislative frameworks, accountability and lack of resources. Participants did not identify any macro level (policy or structural) facilitators to the use of the tool highlighting the negative impact of mental health contexts. Our study indicated that inter-individual factors are likely to be most important to implementation, given their potential to transcend meso and macro level barriers. CONCLUSIONS: Consideration of the meso and macro level influences identified areas for potential intervention, including challenging professionals' and service users' perceptions of each other, rebalancing the notion of accountability within services and introducing new means for service user feedback on the quality of SDM. Multi-level strategies for facilitating the implementation of tools to support SDM are also presented.

Distress in significant others of patients with chronic fatigue syndrome: A systematic review of the literature.

PURPOSE: The objective of this study was to systematically review existing empirical research assessing levels and correlates of distress in significant others of patients with chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME). METHODS: Systematic searches in CINAHL, Web of Science and PsycINFO were conducted in August 2014. The search was repeated in January 2015 to check for newly published articles. Studies published in English with quantitative, qualitative, or mixed designs exploring distress, poor subjective health, poor mental health, reduced quality of life and well-being, and symptoms of depression and anxiety in significant others (>18 years) of children and adults with CFS/ME were included. Quality appraisal of included studies was carried out. Quantitative and qualitative studies were summarized separately. RESULTS: Six articles met eligibility criteria. Two quantitative studies with significant others of adult patients, and one quantitative and two mixed-methods studies with significant others of child patients showed moderate to high levels of distress. One qualitative study (adult patients) found minimal evidence of distress and that acceptance of CFS/ME was related to better adjustment. In the quantitative and mixed-methods studies, significant others who attributed some level of responsibility for symptoms to the patient, or who were female, or whose partners had poorer mental health, had higher levels of distress. CONCLUSIONS: The small number of studies to date, the contrary evidence from a qualitative study, and the limited data available on levels of distress in significant others of patients with CFS/ME mean that our conclusion that distress levels are elevated is provisional. We recommend that future qualitative studies focus on this particular topic. Further longitudinal studies exploring correlates of distress within the context of a predictive theoretical model would be helpful. Statement of contribution What is already known on this subject? Chronic fatigue syndrome (CFS/ME) entails considerable economic, social, and personal costs. Uncertainties exist around diagnosis and management. This may lead to particular difficulties for significant others trying to support patients. What does this study add? Few studies have examined distress and its correlates in significant others of people with CFS/ME. Significant others report elevated levels of distress on quantitative measures.

Sleep-related attentional bias in insomnia: A state-of-the-science review.

Prominent models of insomnia posit that sleep-related attentional bias plays an important role in the development and maintenance of insomnia. Here we conduct the first systematic review of the sleep-related attentional bias construct, indexed through reaction time-based experimental tasks. Literature search identified 13 studies that met pre-defined inclusion/exclusion criteria. Included studies involved between-group comparisons (poor sleepers versus controls), as well as sleep manipulations and correlational investigations with healthy sleepers. For studies involving comparisons between poor sleepers and healthy controls, effect size estimates were computed for task-relevant dependent variables. Six of the nine studies comparing poor sleepers and controls revealed statistically significant group differences in support of a differential sleep-related attentional bias (medium-to-large effect sizes), with flicker, dot-probe and Posner tasks being most sensitive to group effects. Due to the paucity of studies and variability in design and measurement, no conclusions could be reached regarding manipulation or induction of attentional bias in good sleepers. Results from the relatively small number of studies support the presence of sleep-related attentional bias in insomnia; however, its role in the development and/or maintenance of insomnia remains to be elucidated. We set out a research agenda aimed at advancing the understanding of sleep-related attention bias.