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The purpose of this survey was to describe the impact of the diagnosis of schizophrenia on the lives of people who receive the diagnosis.

The authors designed a questionnaire to investigate attitudes to and experiences of the diagnosis of schizophrenia. After a pilot study, they made the questionnaire available online and, through a network of service user and other organisations, solicited responses.

Of the 470 responses, 27.4 per cent were from service users. Content analysis of their responses revealed three main categories: concern with the consequences of the diagnosis and its negative impact on their lives, the life contexts of individuals before receiving the diagnosis, and concerns with medication and treatment. This paper deals with the first two.

It is impossible to generalise the results of this survey because respondents self‐selected, and thus might be expected to have strong feelings against (or for) the diagnosis of schizophrenia.

The diagnosis of schizophrenia in this sample had devastating negative implications. It was experienced as harmful and stigmatising. Very few people understood their experiences as a biomedical disorder.

A gulf exists between the experiences of people diagnosed with schizophrenia and the concerns of academics and others currently involved in debates about the merits of different systems of diagnosis.

This survey is valuable because it draws attention to experiences of diagnosis that are easily lost in the storm of academic controversies about diagnosis in psychiatry.

This paper aims to provide an overview of the policy guidance and will begin with an introduction and overview of policy development during this period; then focus on the more specific guidance in four broad areas: dual diagnosis specific guidance, risk, training, and service specific ‐ guidance. Assessment and treatment are cross‐cutting themes and key messages in relation to these areas will also be highlighted. Having outlined the policy guidance, consideration will be given to how effective it has been in changing service delivery and suggestions made as to what might be required to ensure more consistent implementation.

The Diagnostic Criteria for Psychiatric Disorders for Use with Adults with Learning Disabilities/Mental Retardation (DC‐LD) was introduced in 2003 in an attempt to improve accuracy of diagnosis in the intellectual disability population. The paper aims to apply this system to a sample of a population with intellectual disability to further investigate its usefulness in the clinical setting.

A sample of 50 patients within an intellectual disability service was identified. Each individual was interviewed by a registrar in psychiatry of intellectual disability in the presence of their key worker or a carer that knew the individual well. Chart notes were extensively reviewed for clearly documented history of psychiatric symptoms and behavioural difficulties. The information gathered was applied as per the DC‐LD criteria to identify appropriate diagnoses. Previously documented diagnoses were also recorded for comparison purposes.

There was considerable discrepancy between the rates of psychiatric diagnoses after application of DC‐LD and rates of previously documented diagnoses within the sample. Use of DC‐LD led to the reclassification of many previously documented diagnoses, mainly as behavioural disorders. There were also discrepancies between rates of diagnosis of pervasive developmental disorders and Alzheimer's disease before and after use of DC‐LD.

This study adds to the evidence regarding the usefulness of DC‐LD in the intellectual disability population and also highlights the shortcomings of non‐systematic methods of diagnosis. It was agreed that DC‐LD criteria be applied to all service users in this population in the future.

This study aims to use the database of consumers referred to the dual diagnosis shared care service to examine those connections. The Eastern Dual Diagnosis Service, based in Melbourne, Australia, has established a database of consumers with co-occurring mental health disorders and problematic substance use. An examination of mental health and substance-use information obtained over a two-year period in the delivery of dual diagnosis shared care to consumers of mental health services is supporting an improved understanding of substance use and the connections to specific mental health diagnoses of schizophrenia, bipolar disorder and schizoaffective disorder.

This research uses a quantitative approach to review the prevalence of primary substance use and mental health diagnoses for consumers referred to as dual diagnosis shared care. Reviewed are referrals from adult mental health community and rehabilitation teams operating within a mental health and well-being program between January 2019 and December 2020 inclusive.

Of the 387 clients referred to the specialist dual diagnosis shared care, methamphetamine, alcohol and cannabis are associated with 89.4% of the primary mental health diagnosis (PMHD). The most common PMHDs are schizophrenia, schizoaffective disorder and bipolar disorder. The most common PMHD and substance-use connection was schizophrenia and methamphetamine. Nicotine was reported to be used by 84% of consumers and often occurred in addition to another problematic primary substance.

Improved dual diagnosis data collection from a community-based clinical mental health service is increasing understanding of the mental health and substance-use relationship. This is now providing clarity on routes of investigation into co-occurring mental health and problematic substance-use trends and guiding improved integrated treatments within a contemporary mental health setting.

Autism spectrum conditions (ASC) and borderline personality disorder (BPD) have overlapping symptom profiles. Dialectical behaviour therapy (DBT) is an established treatment for self-harm and BPD, but little research has investigated the outcomes of DBT for ASC populations. This exploratory service evaluation aims to investigate the outcomes of a comprehensive DBT programme for adolescents with a diagnosis of emerging BPD and a co-occurring ASC diagnosis as compared to those without an ASC diagnosis.

Differences from the start to end of treatment in the frequency of self-harming behaviours, BPD symptoms, emotion dysregulation, depression, anxiety, the number of A&E attendances and inpatient bed days, education and work status, and treatment non-completion rates were analysed for those with an ASC diagnosis, and compared between those with an ASC diagnosis and those without.

Significant medium to large reductions in self-harming behaviours, BPD symptoms, emotion dysregulation and inpatient bed days were found for those with an ASC diagnosis by the end of treatment. There were no significant differences between those with an ASC and those without in any outcome or in non-completion rates. These findings indicate that DBT may be a useful treatment model for those with an ASC diagnosis, though all results are preliminary and require replication.

To the best of the authors’ knowledge, this is the first study to report the outcomes of a comprehensive DBT programme for adolescents with an ASC diagnosis, and to compare the changes in outcomes between those with a diagnosis and those without.

This study aims to examine the impact that diagnostic factors such as duration of diagnostic period, number of professionals consulted and perceived social support have on parental stress during the diagnostic process of autism spectrum disorder (ASD).

Forty parents of 2–18 year-old children/adolescents with a formal ASD diagnosis recruited from five specialized private clinics in Lisbon completed a survey which included diagnostic questionnaire, parental stress scale and social support scale from April to December 2022.

Data analysis indicated that the mean age of the diagnosis was 5.6 years with a delay of 3.95 years from first concern until final diagnosis. On average, parents consulted a mean of 3.62 professionals. Other findings indicated that as age of parents increased, levels of parental stress decreased. Parents with higher levels of social support had lower levels of parental stress. Furthermore, higher age of child at first concern predicted higher affective social support.

This study reflects on the experience of obtaining the ASD diagnosis in Portugal, raising awareness on the importance of providing early detection and social support for distressed parents.

Many people with dual diagnosis present with social complexity that impedes service access. The role of social work support in such service navigation is poorly understood. This study aims to characterise client presentations to an Australian telephone-based social work alcohol and other drug (AOD) service navigation and linkage program, with consideration of presentation complexity compared between those clients who present with or without self-reported mental health (MH) concerns and a history of MH diagnoses, to identify differences in baseline characteristics, and linkage outcomes.

A retrospective audit was conducted of routinely collected clinical information from a six-month period, selected to capture the social and health challenges experienced during the mid-pandemic period (mid-2021) in Victoria, Australia, during which a number of lockdowns resulted in a reliance on telephone-based services. The audit focused on client and presentation characteristics, and compared clients with and without a history of co-occurring MH and AOD concerns.

It was found that three in four people accessing an Australian telephone-based AOD service navigation and linkage program presented with dual diagnosis. Individuals with dual diagnosis required more support from the service compared to those without a co-occurring MH disorder; but overall, were just as likely to achieve a successful linkage to services, when offered holistic, long-term social work support.

This study focused on the role of social workers in this service navigation program in supporting individuals with complexity. It also highlights the challenges in operationalising social complexity factors alongside clinical MH and AOD diagnoses, and points to the need for further research to guide future service development for this vulnerable client group.

This paper reports a social work student’s experience of a mental health rehabilitation placement. The term “dual diagnosis” in this context includes people who experience both a mental health diagnosis and a substance use disorder. The purpose of this paper is to highlight the student experience as the author learnt about some of the challenges that people with dual diagnoses face during the recovery process.

The author kept a journal during the placement. Critical reflection was used to interrogate the journal entries for key themes and events that contributed to the author’s learning about social work practice and dual diagnosis.

This study found that social workers are in a fortunate position to work in this multi-disciplinary setting and contribute the social work perspective to care for people with dual diagnosis. However, there are still some gaps in achieving optimal care.

Suggestions for further practice development include a more integrated approach between services, further training for clinicians and a focus on a community-based setting as opposed to an institutionalised one.

According to the author, the student experience is important because students see situations and settings with fresh eyes that can highlight things that experienced practitioners take for granted.

Addressing the needs of people with a dual diagnosis is a core component of acute inpatient mental healthcare. In 2006/2007, the Healthcare Commission conducted a national review of NHS acute inpatient wards in England. The review included five indicators of particular relevance to working with people with a dual diagnosis. This paper provides an overview of the review process, reports the dual diagnosis findings and considers their implications for improving the care and treatment of people with a dual diagnosis in the inpatient setting.

The purpose of this paper is to determine: the extent to which an intellectual disability diagnosis meets current diagnostic and statistical manual of mental disorders (DSM) diagnostic criteria; the prevalence of reported autism spectrum disorders (ASD); and the extent to which assessment of developmental issues is central to the diagnosis of psychotic disorder, in patients discharged with a diagnosis of psychotic disorder and intellectual disabilities.

Of all patients discharged with psychotic disorder during a four‐year period (n=3339), chart reviews were completed on those also diagnosed with intellectual disability or borderline IQ.

The findings if this paper are threefold: only 39 percent of the 41 individuals discharged with a diagnosis of psychotic disorder and intellectual disability met documented DSM criteria for intellectual disability; the prevalence of reported ASD was much lower than expected; and the average number of different discharge diagnoses per individual over time was 4.8. Schizophrenia diagnoses were made early in the diagnostic process and tended to persist even when ASD concerns were documented.

The results support the need to systematically assess the developmental issues of patients with intellectual disability as part of the psychiatric diagnostic formulation. Differential diagnoses of psychotic‐like behaviours seen in people with intellectual disability, and alternative frameworks for understanding these behaviours, which in turn should guide more effective interventions and treatment, are discussed.