Agitation in dementia is common, persistent and distressing and can lead to care breakdown. Medication is often ineffective and harmful.

To systematically review randomised controlled trial evidence regarding non-pharmacological interventions.

We reviewed 33 studies fitting predetermined criteria, assessed their validity and calculated standardised effect sizes (SES).

Person-centred care, communication skills training and adapted dementia care mapping decreased symptomatic and severe agitation in care homes immediately (SES range 0.3–1.8) and for up to 6 months afterwards (SES range 0.2–2.2). Activities and music therapy by protocol (SES range 0.5–0.6) decreased overall agitation and sensory intervention decreased clinically significant agitation immediately. Aromatherapy and light therapy did not demonstrate efficacy.

There are evidence-based strategies for care homes. Future interventions should focus on consistent and long-term implementation through staff training. Further research is needed for people living in their own homes.

The application of cognitive therapy (CT) to psychosis is currently being developed in the UK. This paper reports a trial of CT in acute psychosis with the objective of hastening the resolution of positive symptoms and reducing residual symptoms.

Of 117 patients with acute non-affective psychosis, 69 satisfied inclusion criteria and 40 proceeded to stratified randomisation. The experimental intervention involving individual and group CT was compared with a group receiving matched hours of therapist input providing structured activities and informal support; routine pharmacotherapy was provided by clinicians blind to group allocation. Patients were monitored weekly using self-report and mental state assessments during admission and over the subsequent nine months.

Both groups showed a decline in positive symptoms but this was more marked in the CT group (P < 0.001). At 9 months 5% of the CT group, v. 56% of the control group, showed moderate or severe residual symptoms.

CT appears to be a potent adjunct to pharmacotherapy and standard care for acute psychosis. Issues concerning internal and external validity of the study and opportunities for further research are discussed.

This systematic review of the association between schizophrenia and obstetric complications (OCs) was performed to assess the degree of heterogeneity between studies and to quantify the increased risk of schizophrenia in exposed subjects.

Twenty case-control, one prospective cohort and two historical cohort studies were identified using a medline search supplemented by a manual search and direct communication with other researchers. Individual odds ratios were calculated for each study and a pooled estimate produced. The effect of methodological variation between studies was further assessed by partitioning studies according to study characteristics.

Overall, there was no significant heterogeneity of effect between studies, and the pooled odds ratio for the exposure to OCs on subsequent development of schizophrenia was 2.0 (95% CI 1.6–2.4). However, partitioning according to study design revealed significant heterogeneity (z = –2.60, P < 0.01) between the pooled estimate from the case-control studies and that from the historical cohort studies. There was a gap on the funnel plot in the region of small studies finding no effect.

Although the result indicates that subjects exposed to OCs are twice as likely to develop schizophrenia, the analysis suggests that the observed association could be inflated by both selection and publication biases.

Post-partum depression in the developing world has received tittle research attention, and its association with disturbances in the mother–infant relationship is unknown.

To determine the prevalence of post-partum depression and associated disturbances in the mother–infant relationship in Khayelitsha, a South African peri-urban settlement.

The mental state of 147 women who had delivered two months previously was assessed, and the quality of their engagement with their infants was determined.

The point prevalence of DSM–IV major depression was found to be 34.7%. Maternal depression was associated with poor emotional and practical support from the partner. It was also associated with insensitive engagement with the infants.

The rate of post-partum depression in Khayelitsha was around three times that found in British post-partum samples, and these depressions were strongly associated with disturbances in the mother–infant relationship.

Tragic and high-profile killings by people with mental illness have been used to suggest that the community care model for mental health services has failed.

To consider whether such homicides have become more frequent as psychiatric services have changed.

Data were extracted from Home Office-generated criminal statistics for England and Wales between 1957 and 1995 and subjected to trends analysis.

There was little fluctuation in numbers of people with a mental illness committing criminal homicide over the 38 years studied, and a 3% annual decline in their contribution to the official statistics.

There are many reasons for improving the resources and quality of care for people with a mental disorder, but there is no evidence that it is anything but stigmatising to claim that their living in the community is a dangerous experiment that should be reversed. There appears to be some case for specially focused improvement of services for people with a personality disorder and/or substance misuse.

The aetiology of treatment-resistant major depression is little understood; its apparent intractability may reflect brain abnormality.

Magnetic resonance images of the brains of 20 subjects with major depression lasting for two years or more were compared with 20 healthy control subjects and 20 other subjects who had completely recovered from depression. Subjects were individually matched for age, gender, years of education and premorbid IQ. Grey matter was segmented from the images, and compared between groups on a voxel-by-voxel basis.

Subjects with chronic depression showed reduced grey matter density in the left temporal cortex including the hippocampus. There was also a trend for reduction in the right hippocampus. Left hippocampal grey matter density was correlated with measures of verbal memory, supporting the functional significance of the observed magnetic resonance imaging changes.

Our results potentially challenge the accepted view of depression as a functional and fully reversible illness, implying instead that more permanent brain changes may be associated with chronicity. Confirmatory longitudinal and prospective studies are required to determine whether these differences pre-date the onset of depression or are the result of the chronic illness process or its treatment.

Most prior studies of panic-depression comorbidity have been limited methodologically by use of small clinical samples and incomplete analyses.

General population data were used to study the association of lifetime and recent (12 months) panic–depression comorbidity with symptom severity, impairment, course and help-seeking in the National Comorbidity Survey (NCS).

The NCS is a nationally representative survey of the prevalences and correlates of major DSM–III–R disorders in the US household population.

Strong lifetime and current comorbidity were found between panic and depression. Comorbidity was associated with greater symptom severity, persistence, role impairment, suicidality and help-seeking, with many findings persisting after controlling for additional comorbid diagnoses. Findings did not differ according to which disorder was chronologically primary.

Both lifetime and current panic–depression comorbidity are markers for more severe, persistent and disabling illness. Neither additional comorbid diagnoses nor the primary–secondary distinction were important moderators of these associations.

Individual placement and support (IPS) is a vocational rehabilitation programme that was developed in the USA to improve employment outcomes for people with severe mental illness. Its ability to be generalised to other countries and its effectiveness in varying economic conditions remains to be ascertained.

To investigate whether IPS is effective across international settings and in different economic conditions.

A systematic review and meta-analysis of randomised controlled trials comparing IPS with traditional vocational services was undertaken; 17 studies, as well as 2 follow-up studies, were included. Meta-regressions were carried out to examine whether IPS effectiveness varied according to geographic location, unemployment rates or gross domestic product (GDP) growth.

The overall pooled risk ratio for competitive employment using IPS compared with traditional vocational rehabilitation was 2.40 (95% CI 1.99–2.90). Meta-regressions indicated that neither geographic area nor unemployment rates affected the overall effectiveness of IPS. Even when a country's GDP growth was less than 2% IPS was significantly more effective than traditional vocational training, and its benefits remained evident over 2 years.

Individual placement and support is an effective intervention across a variety of settings and economic conditions and is more than twice as likely to lead to competitive employment when compared with traditional vocational rehabilitation.

The COVID-19 pandemic and mitigation measures are likely to have a marked effect on mental health. It is important to use longitudinal data to improve inferences.

To quantify the prevalence of depression, anxiety and mental well-being before and during the COVID-19 pandemic. Also, to identify groups at risk of depression and/or anxiety during the pandemic.

Data were from the Avon Longitudinal Study of Parents and Children (ALSPAC) index generation (n = 2850, mean age 28 years) and parent generation (n = 3720, mean age 59 years), and Generation Scotland (n = 4233, mean age 59 years). Depression was measured with the Short Mood and Feelings Questionnaire in ALSPAC and the Patient Health Questionnaire-9 in Generation Scotland. Anxiety and mental well-being were measured with the Generalised Anxiety Disorder Assessment-7 and the Short Warwick Edinburgh Mental Wellbeing Scale.

Depression during the pandemic was similar to pre-pandemic levels in the ALSPAC index generation, but those experiencing anxiety had almost doubled, at 24% (95% CI 23–26%) compared with a pre-pandemic level of 13% (95% CI 12–14%). In both studies, anxiety and depression during the pandemic was greater in younger members, women, those with pre-existing mental/physical health conditions and individuals in socioeconomic adversity, even when controlling for pre-pandemic anxiety and depression.

These results provide evidence for increased anxiety in young people that is coincident with the pandemic. Specific groups are at elevated risk of depression and anxiety during the COVID-19 pandemic. This is important for planning current mental health provisions and for long-term impact beyond this pandemic.

Advocates of expanded mental health treatment assert that mental disorders are as disabling as physical disorders, but little evidence supports this assertion.

To establish the disability and treatment of specific mental and physical disorders in high-income and low- and middle-income countries.

Community epidemiological surveys were administered in 15 countries through the World Health Organization World Mental Health (WMH) Survey Initiative.

Respondents in both high-income and low- and middle-income countries attributed higher disability to mental disorders than to the commonly occurring physical disorders included in the surveys. This pattern held for all disorders and also for treated disorders. Disaggregation showed that the higher disability of mental than physical disorders was limited to disability in social and personal role functioning, whereas disability in productive role functioning was generally comparable for mental and physical disorders.

Despite often higher disability, mental disorders are under-treated compared with physical disorders in both high-income and in low- and middle-income countries.

A series of small, mainly uncontrolled, studies have suggested that techniques adapted from cognitive–behavioural therapy (CBT) for depression can improve outcome in psychosis, but no large randomised controlled trial of intensive treatment for medication-resistant symptoms of psychosis has previously been published.

Sixty participants who each had at least one positive and distressing symptom of psychosis that was medication-resistant were randomly allocated between a CBT and standard care condition (n=28) and a standard care only control condition (n=32). Therapy was individualised, and lasted for nine months. Multiple assessments of outcome were used.

Over nine months, improvement was significant only in the treatment group, who showed a 25% reduction on the BPRS. No other clinical, symptomatic or functioning measure changed significantly. Participants had a low drop-out rate from therapy (11%), and expressed high levels of satisfaction with treatment (80%). Fifty per cent of the CBT group were treatment responders (one person became worse), compared with 31% of the control group (three people became worse and another committed suicide)

CBT for psychosis can improve overall symptomatology. The findings provide evidence that even a refractory group of clients with a long history of psychosis can engage in talking about psychotic symptoms and their meaning, and this can improve outcome.

Transcranial direct current stimulation (tDCS) is a non-pharmacological intervention for depression. It has mixed results, possibly caused by study heterogeneity.

To assess tDCS efficacy and to explore individual response predictors.

Systematic review and individual patient data meta-analysis.

Data were gathered from six randomised sham-controlled trials, enrolling 289 patients. Active tDCS was significantly superior to sham for response (34% v. 19% respectively, odds ratio (OR) = 2.44, 95% CI 1.38–4.32, number needed to treat (NNT) = 7), remission (23.1% v. 12.7% respectively, OR = 2.38, 95% CI 1.22–4.64, NNT = 9) and depression improvement (B coefficient 0.35, 95% CI 0.12–0.57). Mixed-effects models showed that, after adjustment for other predictors and confounders, treatment-resistant depression and higher tDCS ‘doses' were, respectively, negatively and positively associated with tDCS efficacy.

The effect size of tDCS treatment was comparable with those reported for repetitive transcranial magnetic stimulation and antidepressant drug treatment in primary care. The most important parameters for optimisation in future trials are depression refractoriness and tDCS dose.