Ascertainment of early onset eating disorders: a pilot for developing a national child psychiatric surveillance system

Cost-effectiveness of specialist eating disorders services for children and adolescents with anorexia nervosa: a national surveillance study

BACKGROUND

Evidence suggests specialist eating disorders services for children and adolescents with anorexia nervosa have the potential to improve outcomes and reduce costs through reduced hospital admissions. This study aimed to evaluate the cost-effectiveness of assessment and diagnosis in community-based specialist child and adolescent mental health services (CAMHS) compared to generic CAMHS for children and adolescents with anorexia nervosa.

METHOD

Observational, surveillance study of children and adolescents aged 8 to 17, in contact with community-based CAMHS in the UK or Republic of Ireland for a first episode of anorexia nervosa. Data were reported by clinicians at baseline, 6 and 12-months follow-up. Outcomes included the Children's Global Assessment Scale (CGAS) and percentage of median expected body mass for age and sex (%mBMI). Service use data included paediatric and psychiatric inpatient admissions, outpatient and day-patient attendances. A joint distribution of incremental mean costs and effects for each group was generated using bootstrapping to explore the probability that each service is the optimal choice, subject to a range of values a decision-maker might be willing to pay for outcome improvements. Uncertainty was explored using cost-effectiveness acceptability curves.

RESULTS

Two hundred ninety-eight children and adolescents met inclusion criteria. At 12-month follow-up, there were no significant differences in total costs or outcomes between specialist eating disorders services and generic CAMHS. However, adjustment for pre-specified baseline covariates resulted in observed differences favouring specialist services, due to significantly poorer clinical status of the specialist group at baseline. Cost-effectiveness analysis using CGAS suggests that the probability of assessment in a specialist service being cost-effective compared to generic CAMHS ranges from 90 to 50%, dependent on willingness to pay for improvements in outcome.

CONCLUSIONS

Assessment in a specialist eating disorders service for children and adolescents with anorexia nervosa may have a higher probability of being cost-effective than assessment in generic CAMHS.

TRIAL REGISTRATION

ISRCTN12676087 . Date of registration 07/01/2014.

The transition from children’s services to adult services for young people with attention deficit hyperactivity disorder: the CATCh-uS mixed-methods study

Background

Attention deficit hyperactivity disorder was previously seen as a childhood developmental disorder, so adult mental health services were not set up to support attention deficit hyperactivity disorder patients who became too old for child services. To our knowledge, this is the first in-depth study of the transition of attention deficit hyperactivity disorder patients from child to adult health services in the UK.

Objectives

Our objectives were to explore how many young people with attention deficit hyperactivity disorder are in need of services as an adult, what adult attention deficit hyperactivity disorder services are available and how attention deficit hyperactivity disorder stakeholders experience transition from child to adult services.

Design

An interactive mixed-method design was adopted with three study streams: (1) a 12-month surveillance study with 9-month follow-up to find out how many young people required ongoing medication when they were too old for child services (929 surveys completed by children’s clinicians); (2) a mapping study to identify and describe services for young adults with attention deficit hyperactivity disorder (2686 respondents to online surveys for patients and health workers and freedom of information requests to service providers and commissioners); and (3) a qualitative study to explore key stakeholders’ experiences of transition from child to adult services (144 interviews with 64 attention deficit hyperactivity disorder patients, 28 parents and 52 health clinicians; 38 working in child or adult secondary health services and 14 general practitioners). Members of the public advised at each stage of the study.

Results

When corrected for non-response and case ascertainment, the annual number of young people with an ongoing need for medication for attention deficit hyperactivity disorder lies between 270 and 599 per 100,000 people aged 17–19 years. Among 315 individuals eligible for transition, 64% were accepted, but only 22% attended their first adult services appointment. Our interactive map describes 294 unique services for adults with attention deficit hyperactivity disorder across the UK, of which 44 are ‘dedicated’ attention deficit hyperactivity disorder services. Few services provide the full range of recommended provision; most focus on diagnosis and medication. Services are unevenly distributed across the UK, with nearly all ‘dedicated’ services being in England. Exploring stakeholders’ experiences revealed how invested the stakeholders are in continuing attention deficit hyperactivity disorder treatment and how the architecture of services affects transition. An association between attention deficit hyperactivity disorder, education and continuance of medication into young adulthood, plus parent involvement and feeling prepared for transition and adult life with attention deficit hyperactivity disorder, influenced investment. However, even with investment, how accessible adult services are, how patient needs fit with the remit of the adult service and the level of patient information available affect transition outcomes. The results also highlight how general practitioners can end up as care co-ordinators during transition by default.

Limitations

Transition estimates were based on those who want medication, so these indicate a minimum level of need.

Conclusions

Few of those who need ongoing support for attention deficit hyperactivity disorder successfully transfer to adult services, and a small proportion of those who transfer experience optimal transitional care. Adult attention deficit hyperactivity disorder service provision is patchy. Even among ‘dedicated’ services, few provide the whole range of National Institute for Health and Care Excellence-recommended treatments.

Future work

We need to evaluate various models of transitional care and adult attention deficit hyperactivity disorder provision, as well as develop and evaluate psychosocial interventions for young people and adults with attention deficit hyperactivity disorder.

Trial registration

Current Controlled Trials ISRCTN12492022.

Funding

This project was funded by the National Institute for Health Research (NIHR) Health Services and Delivery Research programme and will be published in full in Health Services and Delivery Research; Vol. 8, No. 42. See the NIHR Journals Library website for further project information.

Clinician perspectives on the use of National Institute for Health and Care Excellence guidelines for the process of transition in Attention Deficit Hyperactivity Disorder

BACKGROUND

The UK National Institute for Health and Care Excellence (NICE) clinical guidelines recommends the following steps in the transition from child to adult services for young people with attention deficit hyperactivity disorder (ADHD): reassessment before and after transition, transition planning, formal meeting between services, and involvement from young person and carer, completed by age 18.

METHODS

A UK surveillance study asked clinicians to report young people on their caseloads with ADHD in need of transition to adult services in 2016 to support their continued access to medication need. Clinicians reported young people as they aged to within 6 months of the transition boundary, a prospective questionnaire prior to transition asked about intended transition and the use of local transition protocols. A retrospective questionnaire sent 9 months later established which steps recommended by NICE were followed during transition. Clinicians (38) working in child or adult services were interviewed about their experiences of transition and the use of NICE guidelines during transition and were analysed using a framework approach.

RESULTS

Information was shared between services in 85% of the 315 identified transition cases. A joint meeting was planned in 16% of cases; joint working before transfer occurred in 10% of cases. Clinicians were aware of NICE guidelines; they had mixed views on whether (local) guidelines or protocols were helpful. The main reason for not following guidelines was workload and resources: "NICE recommends stuff that is miles above what we will ever be able to provide".

CONCLUSIONS

Clinicians involved in the transition process of young people with ADHD judged NICE guidelines to be unrealistic given the current limited resources and service organization. More open dialogue is needed for recommendations on service models to bridge the gap between guideline recommendations and what is viewed as feasible and how implementation of guidance is funded, monitored, and prioritized. This may lead to valuable changes in the consultation process, for example, consideration of a layered (gold, standard, and minimal) system for some NICE guidelines.

Incidence of anorexia nervosa in young people in the UK and Ireland: a national surveillance study

OBJECTIVES

This study aimed to estimate the incidence of DSM5 anorexia nervosa in young people in contact with child and adolescent mental health services in the UK and Ireland.

DESIGN

Observational, surveillance study, using the Child and Adolescent Psychiatry Surveillance System, involving monthly reporting by child and adolescent psychiatrists between 1st February 2015 and 30th September 2015.

SETTING

The study was based in the UK and Ireland.

PARTICIPANTS

Clinician-reported data on young people aged 8-17 in contact with child and adolescent mental health services for a first episode of anorexia nervosa.

MAIN OUTCOME MEASURES

Annual incidence rates (IRs) estimated as confirmed new cases per 100 000 population at risk.

RESULTS

305 incident cases of anorexia nervosa were reported over the 8-month surveillance period and assessed as eligible for inclusion. The majority were young women (91%), from England (70%) and of white ethnicity (92%). Mean age was 14.6 years (±1.66) and mean percentage of median expected body mass index for age and sex was 83.23% (±10.99%). The overall IR, adjusted for missing data, was estimated to be 13.68 per 100 000 population (95% CI 12.88 to 14.52), with rates of 25.66 (95% CI 24.09 to 27.30) for young women and 2.28 (95% CI 1.84 to 2.79) for young men. Incidence increased steadily with age, peaking at 15 (57.77, 95% CI 50.41 to 65.90) for young women and 16 (5.14, 95% CI 3.20 to 7.83) for young men. Comparison with earlier estimates suggests IRs for children aged 12 and under have increased over the last 10 years.

CONCLUSION

These results provide new estimates of the incidence of anorexia nervosa in young people. Service providers and commissioners should consider evidence to suggest an increase in incidence in younger children.

TRIAL REGISTRATION NUMBER

ISRCTN12676087.

Alternative community-based models of care for young people with anorexia nervosa: the CostED national surveillance study

Background

Evidence suggests that investing in specialist eating disorders services for young people with anorexia nervosa could have important implications for the NHS, with the potential to improve health outcomes and reduce costs through reductions in the number and length of hospital admissions.

Objectives

The primary objectives were to evaluate the costs and cost-effectiveness of alternative community-based models of service provision for young people with anorexia nervosa and to model the impact of potential changes to the provision of specialist services.

Design

Observational surveillance study using the Child and Adolescent Psychiatry Surveillance System.

Setting

Community-based secondary or tertiary child and adolescent mental health services (CAMHS) in the UK and the Republic of Ireland.

Participants

A total of 298 young people aged 8–17 years in contact with CAMHS for a first episode of anorexia nervosa in accordance with Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, diagnostic criteria.

Interventions

Community-based specialist eating disorders services and generic CAMHS.

Main outcome measures

Children’s Global Assessment Scale (CGAS) score (primary outcome) and percentage of median expected body mass index (BMI) for age and sex (%mBMI) (secondary outcome) were assessed at baseline and at 6 and 12 months.

Data sources

Data were collected by clinicians from clinical records.

Results

Total costs incurred by young people initially assessed in specialist eating disorders services were not significantly different from those incurred by young people initially assessed in generic CAMHS. However, adjustment for baseline covariates resulted in observed differences favouring specialist services (costs were lower, on average) because of the significantly poorer clinical status of the specialist group at baseline. At the 6-month follow-up, mean %mBMI was significantly higher in the specialist group, but no other significant differences in outcomes were evident. Cost-effectiveness analyses suggest that initial assessment in a specialist service has a higher probability of being cost-effective than initial assessment in generic CAMHS, as determined by CGAS score and %mBMI. However, no firm conclusion can be drawn without knowledge of society’s willingness to pay for improvements in these outcomes. Decision modelling did not support the hypothesis that changes to the provision of specialist services would generate savings for the NHS, with results suggesting that cost per 10-point improvement in CGAS score (improvement from one CGAS category to the next) varies little as the percentage of participants taking the specialist or generic pathway is varied.

Limitations

Follow-up rates were lower than expected, but the sample was still larger than has been achieved to date in RCTs carried out in this population in the UK, and an exploration of the impact of missing cost and outcome data produced very similar results to those of the main analyses.

Conclusions

The results of this study suggest that initial assessment in a specialist eating disorders service for young people with anorexia nervosa may have a higher probability of being cost-effective than initial assessment in generic CAMHS, although the associated uncertainty makes it hard to draw firm conclusions. Although costs and outcomes were similar, young people in specialist services were more severely ill at baseline, suggesting that specialist services were achieving larger clinical effectiveness gains without the need for additional expenditure. The results did not suggest that providing more specialist services would save money for the NHS, given similar costs and outcomes, so decisions about which service type to fund could be made with reference to other factors, such as the preferences of patients and carers.

Future work

Data on measures of quality of life capable of generating quality-adjusted life-years are needed to confirm the cost-effectiveness of specialist services.

Trial registration

Current Controlled Trials ISRCTN12676087.

Funding

This project was funded by the National Institute for Health Research (NIHR) Health Services and Delivery Research programme and will be published in full in Health Services and Delivery Research; Vol. 7, No. 37. See the NIHR Journals Library website for further project information.

How to measure the need for transition to adult services among young people with Attention Deficit Hyperactivity Disorder (ADHD): a comparison of surveillance versus case note review methods

BACKGROUND

Health services have not provided adequate support for young people with long term health conditions to transfer from child to adult services. National Institute of Health and Care (NICE) guidance on transition has been issued to address these gaps. However, data are often sparse about the number of young adults who might need to transition. Using Attention Deficit Hyperactivity Disorder (ADHD) as an exemplar, this study used an existing surveillance system and a case note review to capture the incidence of the transition process, and compared and contrasted the findings.

METHODS

The Child and Adolescent Psychiatry Surveillance System (CAPSS) was used to estimate the incident transition of young people with Attention Deficit Hyperactivity Disorder (ADHD) from child to adult services. This involves consultant child and adolescent psychiatrists from the United Kingdom (UK) and Republic of Ireland (ROI) reporting relevant young people as they are seen in clinics. In parallel, a case note review was conducted using the Maudsley Biomedical Research Centre (BRC) Clinical Records Interactive Search (CRIS). The study period ran for twelve months with a nine month follow up to see how the transition proceeded.

RESULTS

CRIS identified 76 cases in the study period, compared to 18 identified using surveillance via CAPSS. Methodological issues were experienced using both methods. Surveillance issues; eligibility criteria confusion, reporting errors, incomplete questionnaires, difficulties contacting clinicians, and surveillance systems do not cover non-doctors and psychiatrists who are not consultants. Case note review issues using CRIS included the need for researchers to interpret clinical notes, the availability and completeness of data in the notes, and data limited to the catchment of one particular mental health trust.

CONCLUSIONS

Both methods demonstrate strengths and weaknesses; the combination of both methods in the absence of strong routinely collected data, allowed a more robust estimate of the level of need for service planning and commissioning.

Classification of childhood onset eating disorders: A latent class analysis

This study tested the hypothesis that latent class analysis (LCA) would successfully classify eating disorder (ED) symptoms in children into categories that mapped onto DSM-5 diagnoses and that these categories would be consistent across countries. Childhood onset ED cases were ascertained through prospective active surveillance by the Australian Paediatric Surveillance Unit, the Canadian Paediatric Surveillance Program, and the British Paediatric Surveillance Unit for 36, 24, and 14 months, respectively. Pediatricians and child psychiatrists reported symptoms of any child aged ≤ 12 years with a newly diagnosed restrictive ED. Descriptive analyses and LCA were performed separately for all three countries and compared. Four hundred and thirty-six children were included in the analysis (Australia n = 70; Canada n = 160; United Kingdom n = 206). In each country, LCA revealed two distinct clusters, both of which presented with food avoidance. Cluster 1 (75%, 71%, 66% of the Australian, Canadian, and United Kingdom populations, respectively) presented with symptoms of greater weight preoccupation, fear of being fat, body image distortion, and over exercising, while Cluster 2 did not (all p < .05). Cluster 1 was older, had greater mean weight loss and was more likely to have been admitted to an inpatient unit and have unstable vital signs (all p < .01). Cluster 2 was more likely to present with a comorbid psychiatric disorder (p < .01). Clusters 1 and 2 closely resembled the DSM-5 criteria for anorexia nervosa and avoidant/restrictive food intake disorder, respectively. Symptomatology and distribution were remarkably similar among countries, which lends support to two separate and distinct restrictive ED diagnoses.

From questions to answers: Examining the role of pediatric surveillance units in eating disorder research

Pediatric Surveillance Units (PSUs) provide a unique model for the study of pediatric eating disorders (EDs). Australia, Britain, and Canada have surveillance programs that have generated valuable epidemiological and clinical data on early-onset eating disorders (EOED). The PSUs represent an important collaborative tool that has helped shape our understanding of EOEDs and offers potential to contribute to decisions regarding health resource allocation and public health policy. This paper reviews the role of PSUs as a unique model to study pediatric EDs and its success in translating the knowledge generated by these programs into improving the health of children and adolescents with EDs worldwide.

Incidence and 12-month outcome of non-transient childhood conversion disorder in the U.K. and Ireland

BACKGROUND

Little is known about conversion disorder in childhood.

AIMS

To document clinical incidence, features, management and 12-month outcome of non-transient conversion disorder in under 16-year-olds in the U.K. and Ireland.

METHOD

Surveillance through the British Paediatric Surveillance Unit and Child and Adolescent Psychiatry Surveillance System.

RESULTS

In total, 204 cases (age range 7-15 years) were reported, giving a 12-month incidence of 1.30/100 000 (95% CI 1.11-1.52). The most common symptoms were motor weakness and abnormal movements. Presentation with multiple symptoms was the norm. Antecedent stressors were reported for 80.8%, most commonly bullying in school. Most children required in-patient admission with frequent medical investigations. Follow-up at 12 months was available for 147 children, when all conversion disorder symptoms were reported as improved. Most families (91%) accepted a non-medical explanation of the symptoms either fully or partially.

CONCLUSIONS

Childhood conversion disorder represents an infrequent but significant clinical burden in the UK and Ireland.