Tom Craig

The Lambeth Early Onset (LEO) Team: randomised controlled trial of the effectiveness of specialised care for early psychosis

Abstract Objective To evaluate the effectiveness of a service for early psychosis. Design Randomised controlled clinical trial. Setting Community mental health teams in one London borough. Participants 144 people aged 16-40 years presenting to mental health services for the first or second time with non-organic, non-affective psychosis. Interventions Assertive outreach with evidence based biopsychosocial interventions (specialised care group) and standard care (control group) delivered by community mental health teams. Primary outcome measures Rates of relapse and readmission to hospital. Results Compared with patients in the standard care group, those in the specialised care group were less likely to relapse (odds ratio 0.46, 95% confidence interval 0.22 to 0.97), were readmitted fewer times (β 0.39, 0.10 to 0.68), and were less likely to drop out of the study (odds ratio 0.35, 0.15 to 0.81). When rates were adjusted for sex, previous psychotic episode, and ethnicity, the difference in relapse was no longer significant (odds ratio 0.55, 0.24 to 1.26); only total number of readmissions (β 0.36, 0.04 to 0.66) and dropout rates (β 0.28, 0.12 to 0.73) remained significant. Conclusions Limited evidence shows that a team delivering specialised care for patients with early psychosis is superior to standard care for maintaining contact with professionals and for reducing readmissions to hospital. No firm conclusions can, however, be drawn owing to the modest sample size.

Stress and relapse of breast cancer.

To elucidate the association between stressful life events and the development of cancer the influence of life stress on relapse in operable breast cancer was examined in matched pairs of women in a case-control study. Adverse life events and difficulties occurring during the postoperative disease free interval were recorded in 50 women who had developed their first recurrence of operable breast cancer and during equivalent follow up times in 50 women with operable breast cancer in remission. The cases and controls were matched for the main physical and pathological factors known to be prognostic in breast cancer and sociodemographic variables that influence the frequency of life events and difficulties. Severely threatening life events and difficulties were significantly associated with the first recurrence of breast cancer. The relative risk of relapse associated with severe life events was 5.67 (95% confidence interval 1.57 to 37.20), and the relative risk associated with severe difficulties was 4.75 (1.58 to 19.20). Life events and difficulties not rated as severe were not related to relapse. Experiencing a non-severe life event was associated with a relative risk of 2.0 (0.62 to 7.47), and experiencing a non-severe difficulty was associated with a relative risk of 1.13 (0.38 to 3.35). These results suggest a prognostic association between severe life stressors and recurrence of breast cancer, but a larger prospective study is needed for confirmation.

Parental separation, loss and psychosis in different ethnic groups: a case-control study

BACKGROUND Numerous studies have reported high rates of psychosis in the Black Caribbean and Black African populations in the UK. However, few studies have investigated the role of specific risk factors in different ethnic groups. We sought to investigate the relationship between long-term separation from, and death of, a parent before the age of 16 and risk of adult psychosis in different ethnic groups. METHOD All patients with a first episode of psychosis who made contact with psychiatric services in defined catchment areas in London and Nottingham, UK and a series of community controls were included in the AESOP (Aetiology and Ethnicity in Schizophrenia and Other Psychoses) study. Data relating to clinical and social variables, including parental separation and loss, were collected from patients and controls. RESULTS Separation from, and death of, a parent before the age of 16 were both strongly associated with a two- to threefold increased risk of psychosis. The strength of these associations were similar for White British and Black Caribbean (but not Black African) subjects. Separation from (but not death of) a parent was more common among Black Caribbean controls than White British controls. CONCLUSIONS Early separation may have a greater impact in the Black Caribbean population, because it is more common, and may contribute to the excess of psychosis in this population.

Integrated motivational interviewing and cognitive behavioural therapy for people with psychosis and comorbid substance misuse: randomised controlled trial

Objectives To evaluate the effectiveness of integrated motivational interviewing and cognitive behavioural therapy in addition to standard care for patients with psychosis and a comorbid substance use problem. Design Two centre, open, rater blind randomised controlled trial. Setting Secondary care in the United Kingdom. Participants 327 patients with a clinical diagnosis of schizophrenia, schizophreniform disorder, or schizoaffective disorder and a diagnosis of dependence on or misuse of drugs, alcohol, or both according to the Diagnostic and Statistical Manual of Mental Disorders, fourth edition. Intervention The intervention was integrated motivational interviewing and cognitive behavioural therapy plus standard care, which was compared with standard care alone. Phase one of therapy—“motivation building”—concerns engaging the patient, then exploring and resolving ambivalence for change in substance use. Phase two—“action”—supports and facilitates change using cognitive behavioural approaches. Up to 26 therapy sessions were delivered over one year. Main outcome measures The primary outcome was death from any cause or admission to hospital in the 12 months after completion of therapy. Secondary outcomes were frequency and amount of substance use (assessed using the timeline followback method), readiness to change, perceived negative consequences of use, psychotic symptom ratings, number and duration of relapses, and global assessment of functioning and deliberate self harm at 12 and 24 months, with additional timeline followback assessments at 6 and 18 months. Analysis was by intention to treat and robust treatment effect estimates were produced. Results 327 participants were randomly allocated to either the intervention (n=164) or treatment as usual (n=163). At 24 months, 326 (99.7%) were assessed on the primary outcome and 246 (75.2%) on the main secondary outcomes. Treatment had no beneficial effect on hospital admissions or death during follow-up, with 23.3% (38/163) of the therapy group and 20.2% (33/163) of controls deceased or admitted (adjusted odds ratio 1.16, 95% confidence interval 0.68 to 1.99; P=0.579). Therapy had no effect on the frequency of substance use or the perceived negative consequences of misuse, but did have a statistically significant effect on amount used per substance using day (adjusted ORs for main substance 1.50, 95% CI 1.08 to 2.09; P=0.016; and all substances 1.48, 95% CI 1.07 to 2.05; P=0.017). Treatment had a statistically significant effect on readiness to change use at 12 months (adjusted OR 2.05, 95% CI 1.26 to 3.31; P=0.004) that was not maintained at 24 months (0.78, 95% CI 0.48 to 1.28; P=0.320). There were no effects of treatment on clinical outcomes such as relapses, psychotic symptoms, functioning, and self harm. Conclusions Integrated motivational interviewing and cognitive behavioural therapy for people with psychosis and substance misuse do not improve outcome in terms of hospitalisation, symptom outcomes, or functioning. This approach does reduce the amount of substance used for at least one year after completion of therapy. Trial registration Current Controlled Trials: ISRCTN14404480.

The varying impact of type, timing and frequency of exposure to childhood adversity on its association with adult psychotic disorder

BACKGROUND Childhood adversity has been associated with onset of psychosis in adulthood but these studies have used only general definitions of this environmental risk indicator. Therefore, we sought to explore the prevalence of more specific adverse childhood experiences amongst those with and without psychotic disorders using detailed assessments in a large epidemiological case-control sample (AESOP). METHOD Data were collected on 182 first-presentation psychosis cases and 246 geographically matched controls in two UK centres. Information relating to the timing and frequency of exposure to different types of childhood adversity (neglect, antipathy, physical and sexual abuse, local authority care, disrupted living arrangements and lack of supportive figure) was obtained using the Childhood Experience of Care and Abuse Questionnaire. RESULTS Psychosis cases were three times more likely to report severe physical abuse from the mother that commenced prior to 12 years of age, even after adjustment for other significant forms of adversity and demographic confounders. A non-significant trend was also evident for greater prevalence of reported severe maternal antipathy amongst those with psychosis. Associations with maternal neglect and childhood sexual abuse disappeared after adjusting for maternal physical abuse and antipathy. Paternal maltreatment and other forms of adversity were not associated with psychosis nor was there evidence of a dose-response effect. CONCLUSIONS These findings suggest that only specific adverse childhood experiences are associated with psychotic disorders and only in a minority of cases. If replicated, this greater precision will ensure that research into the mechanisms underlying the pathway from childhood adversity to psychosis is more fruitful.

Gender differences in the association between childhood abuse and psychosis

BACKGROUND Studies demonstrating an association between childhood trauma and psychosis in adulthood have not systematically explored gender differences. AIMS To investigate gender differences in the prevalence of childhood sexual and physical abuse among people with psychosis in comparison with healthy controls. METHOD The Childhood Experiences of Care and Abuse Questionnaire was completed to elicit experiences of sexual and physical abuse during childhood in first-episode psychosis cases and population-based controls. RESULTS Among women, those in the cases group were twice as likely to report either physical or sexual abuse compared with controls following adjustment for all confounders. In particular, the effect of physical abuse in women was stronger and more robust than that for sexual abuse. A similar trend was found for psychotic-like experiences in the female control group. No association was found in men. CONCLUSIONS Reports of severe childhood physical or sexual abuse were associated with psychosis in women but not in men.

Mental disorders among Somali refugees: developing culturally appropriate measures and assessing socio-cultural risk factors.

BackgroundThere are few mental health data for Somali people. This is due to the absence of culturally validated appropriate assessment instruments and methodological challenges. We aimed to develop a culturally appropriate instrument, and address the methodological challenges and assess some risk factors for mental disorder among Somalis in London.MethodsFollowing a comprehensive process of cultural adaptation of the MINI Neuropsychiatric Interview, we assessed ICD-10 mental disorders among 143 Somalis recruited from GP registers and community sites. Associations with demographic and economic characteristics, sampling venues, cultural and migration related risk factors are reported.ResultsA higher risk of mental disorders was found among Somalis who used Khat (OR = 10.5, 1.1–98.3) claimed asylum at entry to the UK (OR = 12.8, 2–81.4) and recruits from primary care rather than from community sites (OR = 5.9, 1.4–25.8). A lower risk of mental disorders was found amongst Somalis in employment (OR = 0.03, 0.01–0.61), and those receiving education in the UK and in Somalia (OR = 0.13, 0.02–0.92). Over a third of subjects had any mental disorder (36.4%, 28.4–44.4), mainly common mental disorders (CMD) (33.8%, 26–41.5) and post-traumatic stress disorder (PTSD) (14%, 8.8–20.8). CMD were found among 80% of those with PTSD.ConclusionPublic health interventions for Somalis should focus on CMD as well as PTSD, khat use and mental health screening for suicide risk and mental disorders on arrival.

WPA guidance on mental health and mental health care in migrants

The purpose of this guidance is to review currently available evidence on mental health problems in migrants and to present advice to clinicians and policy makers on how to provide migrants with appropriate and accessible mental health services. The three phases of the process of migration and the relevant implications for mental health are outlined, as well as the specific problems of groups such as women, children and adolescents, the elderly, refugees and asylum seekers, and lesbian, gay, bisexual and transgender individuals. The concepts of cultural bereavement, cultural identity and cultural congruity are discussed. The epidemiology of mental disorders in migrants is described. A series of recommendations to policy makers, service providers and clinicians aimed to improve mental health care in migrants are provided, covering the special needs of migrants concerning pharmacotherapies and psychotherapies.

Cost-effectiveness of an early intervention service for people with psychosis

BACKGROUND There is concern that delaying treatment for psychosis may have a negative impact on its long-term course. A number of countries have developed early intervention teams but there is limited evidence regarding their cost-effectiveness. AIMS To compare the costs and cost-effectiveness of an early intervention service in London with standard care. METHOD Individuals in their first episode of psychosis (or those who had previously discontinued treatment) were recruited to the study. Clinical variables and costs were measured at baseline and then at 6- and 18-month follow-up. Information on quality of life and vocational outcomes were combined with costs to assess cost-effectiveness. RESULTS A total of 144 people were randomised. Total mean costs were 11,685 pounds sterling in the early intervention group and 14,062 pounds sterling in the standard care group, with the difference not being significant (95% CI -8128 pounds sterling to 3326 pounds sterling). When costs were combined with improved vocational and quality of life outcomes it was shown that early intervention would have a very high likelihood of being cost-effective. CONCLUSIONS Early intervention did not increase costs and was highly likely to be cost-effective when compared with standard care.

Effect of early intervention on 5-year outcome in non-affective psychosis

BACKGROUND Early specialised care may improve short-term outcome in first-episode non-affective psychosis, but it is unclear if these benefits endure. AIMS To assess the long-term effect of early intervention in psychosis. METHOD Individuals with first-episode psychosis were randomised to specialised care or care as usual (trial number: ISRCTN73679874). Outcome after 5 years was assessed by case-note review. RESULTS There were no significant differences in the admission rate (coefficient 0.096, 95% CI -0.550 to 0.742, P = 0.770) or the mean number of bed days (coefficient 6.344, 95% CI -46 to 58.7, P = 0.810). CONCLUSIONS These findings that specialist intervention did not markedly improved outcome at 5 years accord with those from a larger OPUS study. The sample size of this study was small and these results should be generalised with caution. More research is needed.