Newer antidepressants have increasingly been used during the past decade. These drugs may increase compliance and reduce the risk of cycle acceleration in affective disorders.

To investigate the naturalistic longitudinal course of illness in patients with depressive or bipolar disorder following the use of recently introduced drugs.

The rates of relapse leading to hospitalisation after successive episodes were calculated in a case register study including all hospital admissions of patients with primary affective disorder in Denmark during 1994–1999. Altogether, 9417 patients had a diagnosis of depressive disorder and 1106 patients had a diagnosis of mania or bipolar disorder, at first-ever discharge.

The rate of relapse leading to hospitalisation increased with the number of previous episodes in both depressive and bipolar disorders. However, the effect of episodes was not significant for men. The rate of relapse did not decline during the study period.

The course of severe depressive and bipolar disorders has remained roughly the same despite introduction of new treatments.

The Helsinki High-Risk Study follows up all women born between 1916 and 1948 and treated for schizophrenia-spectrum disorders in psychiatric hospitals in Helsinki, their offspring born between 1960 and 1964, and controls.

To determine the cumulative incidence of adulthood Axis I disorders among offspring.

Using all hospital and out-patient treatment records we rediagnosed parents and offspring according to DSM– IV-TR criteria. Offspring were grouped by mother's diagnosis (schizophrenia n = 104, schizoaffective disorder n=20, other schizophrenia-spectrum disorder n=30, and affective disorder n=25) and compared with a control group (n = 176). The cumulative incidences of Axis I disorders among offspring were calculated.

The cumulative incidences of any psychotic disorder were 13.5%, 10.0%, 10.0%, 4.0% and 1.1% among offspring of mothers with schizophrenia, schizo-affective disorder, other schizophrenia-spectrum disorders, affective disorders and controls, respectively. The corresponding figures for schizophrenia were 6.7%, 5.0%, 6.7%, 0% and 0.6%, and for any mental disorder 23.1%, 20.0%, 20.0%, 12.0% and 6.9%.

Offspring of mothers with a psychotic disorder have heightened risk of developing a wide range of severe mental disorders.

The psychosis phenotype is generally thought of as a categorical entity. However, there is increasing evidence that psychosis exists in the population as a continuum of severity rather than an all-or-none phenomenon.

To investigate the prevalence and correlates of self-reported psychotic symptoms using data from the 2000 British National Survey of Psychiatric Morbidity.

A total of 8580 respondents aged 16–74 years were interviewed. Questions covered mental health, physical health, substance use, life events and socio-demographic variables. The Psychosis Screening Questionnaire (PSQ) was used to identify psychotic symptoms.

Of the respondents, 5.5% endorsed one or more items on the PSQ. Factors independently associated with psychotic symptoms were cannabis dependence, alcohol dependence, victimisation, recent stressful life events, lower intellectual ability and neurotic symptoms. Male gender was associated with paranoid thoughts, whereas female gender predicted hallucinatory experiences.

Self-reported psychotic symptoms are less common in this study than reported elsewhere, because of the measure used. These symptoms have demographic and clinical correlates similar to clinical psychosis.

Trends in health treatments and outcomes in the general population may be used to monitor achievement of health targets.

To investigate changes in mental health services and treatment in Britain over a 7-year period.

National surveys of psychiatric morbidity were completed in 1993 and 2000 in households throughout Great Britain. Standardised interviews were used to establish psychiatric case status and service and treatment utilisation in adults aged 16–64 years.

Use of psychotropic medication doubled in those designated as psychiatric cases. In the non-case-status population antidepressant use rose from 0.16% in 1993 (95% Cl 0.07–0.25) to 2.02% in 2000 (95% Cl 1.69–2.35). However, the overall prevalence of neurotic and psychotic disorder hardly changed from 1993 to 2000. Use of specialised ‘talking treatments' did not increase significantly, except in the non-case group.

Treatment with psychotropic medication alone is unlikely to improve the overall mental health of the nation. A policy based almost exclusively on treatment of identified cases should be augmented by preventive approaches.

A genetic susceptibility to extrapyramidal symptoms caused by treatment with neuroleptic medication has been suggested.

To identify predictor variables for neuroleptic-induced extrapyramidal symptoms, particularly considering family history of primary movement disorders.

We investigated 100 in-patients receiving a stable neuroleptic medication with regard to occurrence of extrapyramidal symptoms, drug history and detailed family history of primary movement disorders.

Step-wise logistic regression analysis revealed that a positive family history was a significant predictor for lifetime prevalence of extrapyramidal symptoms, including reported and currently observed symptoms. The duration of exposure to neuroleptic medication and age were further predictors.

Our findings underline the notion of genetic susceptibility for secondary extrapyramidal symptoms and suggest possible shared genetic factors in primary and secondary movement disorders as well as psychotic disorders.

A number of functional brain abnormalities have been reported in schizophrenia, but it remains to be determined which of them represent trait and state markers of the illness.

To delineate regional brain dysfunctions that remain stable and those that fluctuate during the course of schizophrenia.

A cohort of patients with first-episode schizophrenia and a matched group of control participants underwent functional magnetic resonance imaging on two occasions 6–8 weeks apart during performance of a working memory task. The patients' disease was in partial remission at the second scan.

Relative to control participants, the function of the left dorsolateral prefrontal cortex, left thalamus and right cerebellum remained disturbed in the people with schizophrenia, whereas the dysfunction of the right dorsolateral prefrontal cortex, right thalamus, left cerebellum and cingulate gyrus normalised, with significant reduction in symptoms.

These results suggest that dysfunction of the left fronto-thalamo-cerebellar circuitry is a relatively stable characteristic of schizophrenia, whereas disturbance of the right circuitry and cingulate gyrus is predominantly a state-related phenomenon.

Duration of untreated psychosis (DUP) may contribute to the observed heterogeneity of the treatment response in first-episode schizophrenia.

To examine the relationship of DUP and premorbid function with clinical outcomes following up to 2 years of antipsychotic treatment.

For a subsample (n = 191) of subjects participating in a clinical trial, DUP and premorbid function were prospectively compared with clinical response to olanzapine or haloperidol.

Shorter DUP and good premorbid function each independently are associated with better clinical response, including improvement in overall psychopathology and negative symptoms. Premorbid function also is associated with positive symptom, social and vocational outcomes.

Earlier antipsychotic treatment is associated with better outcomes in first-episode schizophrenia. Poor premorbid function could indicate an illness subtype less likely to respond to antipsychotic treatment regardless of when it is instituted.

Knowledge about premorbid development in psychosis can shed light upon theories about aetiology and schizophrenic heterogeneity, and form a basis for early detection initiatives.

To identify and validate patterns of premorbid functioning in first-episode psychosis.

The Premorbid Adjustment Scale was used to examine 335 patients.

Social and academic function constituted fairly independent dimensions. Cluster analysis identified groups varying both in level and course. Patients with a stable social course compared with a deteriorating one had a shorter duration of untreated psychosis, were older, had more friends and less negative symptoms. Good childhood academic function correlated with more education, more meaningful activities and better working memory. Patients with a stable academic course were older at admission.

Patterns of premorbid development suggest both neuro-developmental and neuroregressive pathways to illness.

Questions remain about the long-term health impacts of the 1991 Gulf War on its veterans.

To measure psychological disorders in Australian Gulf War veterans and a military comparison group and to explore any association with exposure to Gulf War-related psychological stressors.

Prevalences of DSM–IV psychological disorders were measured using the Composite International Diagnostic Interview. Gulf War-related psychological stressors were measured using a service experience questionnaire.

A total of 31% of male Gulf War veterans and 21% of the comparison group met criteria for a DSM–IVdisorder first present in the post-Gulf War period. The veterans were at greater risk of developing post-Gulf War anxiety disorders including post-traumatic stress disorder, affective disorders and substance use disorders. The prevalence of such disorders remained elevated a decade after deployment. The findings can be explained partly as a ‘war-deployment effect‘. There was a strong dose–response relationship between psychological disorders and number of reported Gulf War-related psychological stressors.

Service in the 1991 Gulf War is associated with increased risk of psychological disorders and these are related to stressful experiences.

Few controlled studies examine the treatment of depressive features in mania.

To evaluate the efficacy of olanzapine, in combination with lithium or valproate, for treating depressive symptoms associated with mania.

Secondary analysis of a 6-week, double-blind, randomised study of olanzapine (5–20 mg/day) or placebo combined with ongoing valproate or lithium open treatment for 344 patients in mixed or manic episodes. This analysis focused on a dysphoric subgroup with baseline Hamilton Rating Scale for Depression (HRSD) total scores of 20 or over contrasted with non-dysphoric patients.

In the dysphoric subgroup (n=85) mean HRSD total score improvement was significantly greater in olanzapine co-therapy patients than in those receiving placebo plus lithium or valproate (P<0.001). Substantial contributors to this superiority included the HRSD Maier sub-scale (P=0.013) and the suicide item (P=0.001). Total Young Mania Rating Scale improvement was also superior with olanzapine co-therapy.

In patients with acute dysphoric mania, addition of olanzapine to ongoing lithium or valproate monotherapy significantly improved depressive symptom, mania and suicidality ratings.

The incidence of suicidal thoughts in the British population is unknown.

To determine the factors associated with the development of, and recovery from, suicidal thoughts.

An 18-month follow-up survey investigated 2404 of the adults who took part in the second National Psychiatric Morbidity Survey.

The annual incidence of suicidal thoughts was 2.3%. Incidence was highest in women and among 16- to 24-year-olds. Increased incidence was associated with not being in a stable relationship, low levels of social support and being unemployed. Fifty-seven percent of those with suicidal thoughts at baseline had recovered by the 18-month follow-up interview.

Risk factors for suicidal thoughts are similar to those for completed suicide, although the age and gender patterning is different. Fewer than 1 in 200 people who experience suicidal thoughts go on to complete suicide. Further study into explanations for the differences in the epidemiology of suicidal thoughts and suicide is crucial to understanding the pathways (protective and precipitating) linking suicidal thoughts to completed suicide and should help inform effective prevention of suicide.

Explanatory models of illness may differ between ethnic groups and influence treatment satisfaction and compliance.

To compare explanatory models among people with schizophrenia from four cultural backgrounds and explore their relationship with clinical and psychological characteristics.

Explanatory models, insight, treatment compliance, health locus of control, quality of life, treatment satisfaction, therapeutic relationships and symptomatology were assessed in UK Whites and Bangladeshis, African-Caribbeans and West Africans.

When biological and supernatural causes of illness were compared, Whites cited biological causes more frequently than the three non-White groups, who cited supernatural causes more frequently. When biological and social causes were compared, Whites cited biological causes more frequently than African-Caribbeans and Bangladeshis, who cited social causes more frequently. A biological explanatory model was related to enhanced treatment satisfaction and therapeutic relationships but not treatment compliance.

Explanatory models of illness contribute to patient satisfaction with treatment and relationships with clinicians.

Little is known about what characteristics of teams, staff and patients are associated with a favourable outcome of severe mental illness managed by assertive outreach.

To identify predictors of voluntary and compulsory admissions in routine assertive outreach services in the UK.

Nine features of team organisation and policy, five variables assessing staff satisfaction and burn-out and eleven patient characteristics taken from the baseline data of the Pan-London Assertive Outreach Study were tested as predictors of voluntary and compulsory admissions within a 9-month follow-up period.

Weekend working, staff burn-out and lack of contact of the patient with other services were associated independently with a higher probability of both voluntary and compulsory admission. In addition, admissions in the past predicted further voluntary and compulsory admissions, and teams not working extended hours predicted compulsory admissions in the follow-up period.

Characteristics of team working practice, staff burn-out and patients' history are associated independently with outcome. Patient contact with other services is a positive prognostic factor.

Impairments in cognitive functioning are common in schizophrenia, and the degree of impairment may be associated with the individual's age at onset of the disorder.

To examine the effect of age at onset on cognitive functioning using the California Verbal Learning Test, sub-tests from the Wechsler Memory Scale – Revised and sub-scales from the Wechsler Adult Intelligence Scale – Revised among families with schizophrenia.

The effect of age at onset on cognitive function in 237 people with schizophrenia from a population-based sample was examined using linear mixed effects models with family as the random effect, and age, gender, chronicity of the illness and number of affected first-degree relatives as fixed effects.

Impairment in verbal learning and memory was associated with earlier disease onset. No association was found for working memory or IQ.

In patients with early-onset schizophrenia, verbal memory functions in particular should be taken into account in neuropsychological evaluation and efforts at remediation.

There is a dearth of research into the mental health of gay men, lesbians and bisexual men and women in the UK.

To assess rates and possible predictors of mental illness in these groups.

A comprehensive assessment was made of the psychological and social well-being of a sample of gay men, lesbians and bisexual men and women, identified using ‘snowball’ sampling.

Of the 1285 gay, lesbian and bisexual respondents who took part, 556 (43%) had mental disorder as defined by the revised Clinical Interview Schedule (CIS – R). Out of the whole sample, 361 (31%) had attempted suicide. This was associated with markers of discrimination such as recent physical attack (OR=l.7, 95% CI 1.3–2.3) and school bullying (OR=l.4, 95% CI 1.1–2.0), but not with higher scores on the CIS-R.

Gay, lesbian and bisexual men and women have high levels of mental disorder, possibly linked with discrimination.

Despite anecdotal reports that serotonin reuptake inhibitors may improve depersonalisation, there is no proven efficacious treatment for depersonalisation disorder.

To investigate the efficacy of fluoxetine in the treatment of depersonalisation disorder.

Fifty-four people who met DSM-IV criteria for depersonalisation disorder were recruited through newspaper advertisements, and 50 were randomised to a 10-week, double-blind trial of fluoxetine 10–60 mg/day or placebo. Primary outcome measures were the Dissociative Experiences Scale-epersonalisation Factor, the Depersonalization Severity Scale and the Clinical Global Impression-Improvement (CGI-1) scale.

Intention-to-treat analysis revealed that fluoxetine (mean dosage 48 mg/day) was not superior to placebo except for a clinically minimal but statistically significantly greater improvement in CGI-I score in the fluoxetine group prior to covarying for anxiety and depression (2.9 v. 3.6). Depersonalisation was significantly more likely to improve if comorbid anxiety disorder improved.

Fluoxetine was not efficacious in treating depersonalisation disorder, despite the commonly reported clinical use of serotonin reuptake inhibitors for this condition.

Homicides by mentally ill persons have led to political concerns about deinstitutionalisation.

To provide accurate information about the contribution of mental illness to homicide rates.

Retrospective study of homicide in New Zealand from 1970 to 2000, using data from government sources. ‘Mentally abnormal homicide’ perpetrators were defined as those found unfit to stand trial, not guilty by reason of insanity, convicted and sentenced to psychiatric committal, or convicted of infanticide. Group and time trends were analysed.

Mentally abnormal homicides constituted 8.7% of the 1498 homicides. The annual rate of such homicides was 1.3 per million population, static over the period. Total homicides increased by over 6% per year from 1970 to 1990, then declined from 1990 to 2000. The percentage of all homicides committed by the mentally abnormal group fell from 19.5%in 1970 to 5.0% in 2000. Ten percent of perpetrators had been admitted to hospital during the month before the offence; 28.6% had had no prior contact with mental health services. Victims were most commonly known to the perpetrator (74%).

Deinstitutionalisation appears not to be associated with an increased risk of homicide by people who are mentally ill.

We set out to determine whether anorexia nervosa exists in a culture where the pressure to be thin is less pervasive.

To determine whether there were any cases of anorexia nervosa in female students attending two secondary schools in the north-east region of Ghana.

The body mass index (BMI) of consenting students was calculated after measuring their height and weight. Those with a BMI ⩽19 kg/m2 underwent a structured clinical assessment including mental state, physical examination and completion of the Eating Attitudes Test and the Bulimic Investigatory Test, Edinburgh. Participants nominated a best friend to serve as a comparison group, and these young women underwent the same assessments.

Of the 668 students who were screened for BMI, 10 with a BMI <175 kg/m2 appeared to have self-starvation as the only cause of their low weight. All 10 viewed their food restriction positively and in religious terms. The beliefs of these individuals included ideas of self-control and denial of hunger, without the typical anorexic concerns about weight or shape.

Morbid self-starvation may be the core feature of anorexia nervosa, with the attribution for the self-starvation behaviour varying between cultures.

The sudden emergence of severe acute respiratory syndrome (SARS) caused international anxiety owing to its highly contagious and pandemic transmission. Health workers are vulnerable and are at high risk of infection.

To assess SARS-related stress and its immediate psychological impact and responses among health workers.

Health workers in a tertiary hospital affected by SARS were invited to complete a questionnaire designed to evaluate exposure experience, psychological impact and psychiatric morbidity. The risk and rates of psychiatric morbidity were estimated for exposure experience.

Altogether, 1257 health workers successfully completed the survey. In the initial phase of the outbreak, when the infection was spreading rapidly, feelings of extreme vulnerability, uncertainty and threat to life were perceived, dominated by somatic and cognitive symptoms of anxiety. During the ‘repair’ phase, when the infection was being brought under control, depression and avoidance were evident. The estimated prevalence of psychiatric morbidity measured by the Chinese Health Questionnaire was about 75%.

The outbreak of SARS could be regarded as an acute episode of a bio-disaster, leading to a significantly high rate of psychiatric morbidity.

Adverse early circumstances may be more common in people who later develop psychotic disorders.

To use data from the second British National Survey of Psychiatric Morbidity to examine associations between psychotic disorders and a number of early victimisation experiences.

Psychiatric disorders were identified through structured assessment of adults resident in private households in Britain (n=8580). Respondents were asked whether they had experienced selected events displayed on cards.

Compared with respondents with other psychiatric disorders or with none, the prevalence of every experience bar one was significantly elevated in those with definite or probable psychosis. The largest odds ratio was for sexual abuse. Controlling for depressed mood somewhat reduced the odds ratios for the individual experiences.

In people with psychosis, there is a marked excess of victimising experiences, many of which will have occurred during childhood. This is suggestive of a social contribution to aetiology.