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Pemovska T, Loizou S, Appleton R, Spain D, Stefanidou T, Kular A, Cooper R, Greenburgh A, Griffiths J, Barnett P, Foye U, Baldwin H, Minchin M, Brady G, Saunders KRK, Ahmed N, Jackson R, Olive RR, Parker J, Timmerman A, Sapiets S, Driskell E, Chipp B, Parsons B, Totsika V, Mandy W, Pender R, Clery P, Lloyd-Evans B, Simpson A, Johnson S. Approaches to improving mental health care for autistic children and young people: a systematic review and meta-analysis. Psychol Med 2024:1-31. [PMID: 38757186 DOI: 10.1017/s0033291724001089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Autistic children and young people (CYP) experience mental health difficulties but face many barriers to accessing and benefiting from mental health care. There is a need to explore strategies in mental health care for autistic CYP to guide clinical practice and future research and support their mental health needs. Our aim was to identify strategies used to improve mental health care for autistic CYP and examine evidence on their acceptability, feasibility, and effectiveness. A systematic review and meta-analysis were carried out. All study designs reporting acceptability/feasibility outcomes and empirical quantitative studies reporting effectiveness outcomes for strategies tested within mental health care were eligible. We conducted a narrative synthesis and separate meta-analyses by informant (self, parent, and clinician). Fifty-seven papers were included, with most investigating cognitive behavioral therapy (CBT)-based interventions for anxiety and several exploring service-level strategies, such as autism screening tools, clinician training, and adaptations regarding organization of services. Most papers described caregiver involvement in therapy and reported adaptations to communication and intervention content; a few reported environmental adjustments. In the meta-analyses, parent- and clinician-reported outcomes, but not self-reported outcomes, showed with moderate certainty that CBT for anxiety was an effective treatment compared to any comparison condition in reducing anxiety symptoms in autistic individuals. The certainty of evidence for effectiveness, synthesized narratively, ranged from low to moderate. Evidence for feasibility and acceptability tended to be positive. Many identified strategies are simple, reasonable adjustments that can be implemented in services to enhance mental health care for autistic individuals. Notable research gaps persist, however.
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Affiliation(s)
- Tamara Pemovska
- NIHR Mental Health Policy Research Unit, Division of Psychiatry, University College London, London, UK
| | - Sofia Loizou
- NIHR Mental Health Policy Research Unit, King's College London, London, UK
| | - Rebecca Appleton
- NIHR Mental Health Policy Research Unit, Division of Psychiatry, University College London, London, UK
| | | | - Theodora Stefanidou
- NIHR Mental Health Policy Research Unit, Division of Psychiatry, University College London, London, UK
| | - Ariana Kular
- NIHR Mental Health Policy Research Unit, Division of Psychiatry, University College London, London, UK
| | - Ruth Cooper
- NIHR Mental Health Policy Research Unit, King's College London, London, UK
| | - Anna Greenburgh
- NIHR Mental Health Policy Research Unit, Division of Psychiatry, University College London, London, UK
| | - Jessica Griffiths
- NIHR Mental Health Policy Research Unit, King's College London, London, UK
| | - Phoebe Barnett
- NIHR Mental Health Policy Research Unit, Division of Psychiatry, University College London, London, UK
- Centre for Outcomes Research and Effectiveness, Research Department of Clinical, Educational and Health Psychology, University College London, London, UK
- National Collaborating Centre for Mental Health, Royal College of Psychiatrists, London, UK
| | - Una Foye
- NIHR Mental Health Policy Research Unit, King's College London, London, UK
| | - Helen Baldwin
- NIHR Mental Health Policy Research Unit, Division of Psychiatry, University College London, London, UK
| | - Matilda Minchin
- Division of Psychiatry, University College London, London, UK
| | - Gráinne Brady
- Division of Psychiatry, University College London, London, UK
| | | | - Nafiso Ahmed
- NIHR Mental Health Policy Research Unit, Division of Psychiatry, University College London, London, UK
| | - Robin Jackson
- Lancaster and Morecambe Child and Adolescent Mental Health Services, Lancashire and South Cumbria NHS Foundation Trust, Morecambe, UK
- University of Wolverhampton, Wolverhampton, UK
| | - Rachel Rowan Olive
- NIHR Mental Health Policy Research Unit Lived Experience Working Group, Division of Psychiatry, University College London, London, UK
| | - Jennie Parker
- NIHR Mental Health Policy Research Unit Lived Experience Working Group, Division of Psychiatry, University College London, London, UK
- School of Health and Psychological Sciences, City, University of London, London, UK
- Berkshire Healthcare NHS Foundation Trust, Reading, UK
| | - Amanda Timmerman
- Department of Clinical, Educational and Health Psychology, UCL, London, UK
| | - Suzi Sapiets
- Tizard Centre, University of Kent, Canterbury, UK
| | | | - Beverley Chipp
- NIHR Mental Health Policy Research Unit Lived Experience Working Group, Division of Psychiatry, University College London, London, UK
| | | | - Vaso Totsika
- Division of Psychiatry, University College London, London, UK
| | - Will Mandy
- Department of Clinical, Educational and Health Psychology, UCL, London, UK
| | - Richard Pender
- Department of Clinical, Educational and Health Psychology, UCL, London, UK
| | - Philippa Clery
- Division of Psychiatry, University College London, London, UK
- Camden and Islington NHS Foundation Trust, London, UK
| | - Brynmor Lloyd-Evans
- NIHR Mental Health Policy Research Unit, Division of Psychiatry, University College London, London, UK
| | - Alan Simpson
- NIHR Mental Health Policy Research Unit, King's College London, London, UK
| | - Sonia Johnson
- NIHR Mental Health Policy Research Unit, Division of Psychiatry, University College London, London, UK
- Camden and Islington NHS Foundation Trust, London, UK
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Davies J, Cooper K, Killick E, Sam E, Healy M, Thompson G, Mandy W, Redmayne B, Crane L. Autistic identity: A systematic review of quantitative research. Autism Res 2024; 17:874-897. [PMID: 38334318 DOI: 10.1002/aur.3105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 01/21/2024] [Indexed: 02/10/2024]
Abstract
Autism can be considered both a personal and social identity. Identifying the factors contributing to positive Autistic identity development is crucial given the potential implications for mental health and wellbeing. In this systematic review, we aimed to synthesize quantitative literature on Autistic identity to identify the (individual and environmental) factors associated with Autistic identity, and to ascertain the relationship between Autistic identity and mental health and wellbeing. A total of 3,617 studies were screened and 20 met our inclusion criteria. Results indicated that people developed a more positive Autistic identity when receiving external autism acceptance and external support. The association between individual factors and Autistic identity were largely nonsignificant or inconclusive, highlighting the need for broad support that meets the needs of a range of Autistic people, rather than specific subgroups. Importantly, positive Autistic identity was associated with improved mental health and wellbeing. Peer support and/or self-directed support resources may be valuable mechanisms for supporting Autistic people to cultivate a positive Autistic identity. The evaluation of such support, including the long-term impacts on identity development, will be a critical avenue for future research.
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Affiliation(s)
- Jade Davies
- Centre for Research in Autism and Education (CRAE), IOE, UCL's Faculty of Education and Society, University College London, London, UK
| | - Kate Cooper
- Centre for Applied Autism Research, Department of Psychology, University of Bath, UK
| | - Estelle Killick
- Centre for Research in Autism and Education (CRAE), IOE, UCL's Faculty of Education and Society, University College London, London, UK
| | - Evelyn Sam
- Centre for Research in Autism and Education (CRAE), IOE, UCL's Faculty of Education and Society, University College London, London, UK
| | | | | | - Will Mandy
- Research Department of Clinical, Educational, & Health Psychology, University College London, London, UK
| | | | - Laura Crane
- Centre for Research in Autism and Education (CRAE), IOE, UCL's Faculty of Education and Society, University College London, London, UK
- Autism Centre for Education and Research (ACER), Department of Disability, Inclusion and Special Needs, School of Education, College of Social Sciences, University of Birmingham, UK
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Cook J, Hull L, Mandy W. Improving Diagnostic Procedures in Autism for Girls and Women: A Narrative Review. Neuropsychiatr Dis Treat 2024; 20:505-514. [PMID: 38469208 PMCID: PMC10926859 DOI: 10.2147/ndt.s372723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 02/14/2024] [Indexed: 03/13/2024] Open
Abstract
Biases exist in the diagnostic process for autism spectrum disorder (henceforth "autism"), which result in some girls and women being diagnosed later or missed entirely. Current diagnostic tools may not capture the full range of behavioural presentations of autism, leading to under-identification. This review explores why these biases may occur, and how diagnostic procedures could be adapted to better identify autistic girls and women. We recommend that diagnostic assessments are adjusted to capture a broader range of behavioural exemplars of autism; that camouflaging of autistic traits is taken into account; and that care is taken to ensure co-occurring mental health conditions do not overshadow autism diagnosis. We offer recommendations, building on gold-standard diagnostic guidelines, for how diagnostic procedures can be improved for girls and women.
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Affiliation(s)
- Julia Cook
- Social, Genetic and Developmental Psychiatry Centre, King’s College London, London, UK
| | - Laura Hull
- Bristol Medical School, University of Bristol, Bristol, UK
| | - Will Mandy
- Department of Clinical, Educational and Health Psychology, University College London, London, UK
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Loo BRY, Teo TJY, Liang MJ, Leong DJ, Tan DW, Zhuang S, Hull L, Livingston LA, Mandy W, Happé F, Magiati I. Exploring autistic adults' psychosocial experiences affecting beginnings, continuity and change in camouflaging over time: A qualitative study in Singapore. Autism 2024; 28:627-643. [PMID: 37300411 DOI: 10.1177/13623613231180075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
LAY ABSTRACT Over their lifetimes, many autistic people learn to camouflage (hide or mask) their autism-related differences to forge relationships, find work and live independently in largely non-autistic societies. Autistic adults have described camouflaging as a 'lifetime of conditioning . . . to act normal' involving 'years of effort', suggesting that camouflaging develops over an autistic person's lifetime and may start early on, in childhood or adolescence. Yet, we know very little about why and how autistic people start to camouflage, or why and how their camouflaging behaviours continue or change over time. We interviewed 11 Singaporean autistic adults (9 male, 2 female, 22-45 years old) who shared their camouflaging experiences. We found that autistic adults' earliest motivations to camouflage were largely related to the desire to fit in and connect with others. They also camouflaged to avoid difficult social experiences (such as being teased or bullied). Autistic adults shared that their camouflaging behaviours became more complex and that, for some, camouflaging became a part of their self-identity over time. Our findings suggest that society should not pathologise autistic differences, but instead accept and include autistic people, to reduce the pressure on autistic people to hide who they truly are.
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Affiliation(s)
| | | | | | | | - Diana Weiting Tan
- Macquarie University, Australia
- The University of Western Australia, Australia
| | - Sici Zhuang
- The University of Western Australia, Australia
| | | | | | | | | | - Iliana Magiati
- National University of Singapore, Singapore
- The University of Western Australia, Australia
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O'Nions E, Lewer D, Petersen I, Brown J, Buckman JE, Charlton R, Cooper C, El Baou CÉ, Happé F, Manthorpe J, McKechnie DG, Richards M, Saunders R, Zanker C, Mandy W, Stott J. Estimating life expectancy and years of life lost for autistic people in the UK: a matched cohort study. Lancet Reg Health Eur 2024; 36:100776. [PMID: 38188276 PMCID: PMC10769892 DOI: 10.1016/j.lanepe.2023.100776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/20/2023] [Accepted: 10/23/2023] [Indexed: 01/09/2024]
Abstract
Background Previous research has shown that people who have been diagnosed autistic are more likely to die prematurely than the general population. However, statistics on premature mortality in autistic people have often been misinterpreted. In this study we aimed to estimate the life expectancy and years of life lost experienced by autistic people living in the UK. Methods We studied people in the IQVIA Medical Research Database with an autism diagnosis between January 1, 1989 and January 16, 2019. For each participant diagnosed autistic, we included ten comparison participants without an autism diagnosis, matched by age, sex, and primary care practice. We calculated age- and sex-standardised mortality ratios comparing people diagnosed autistic to the reference group. We used Poisson regression to estimate age-specific mortality rates, and life tables to estimate life expectancy at age 18 and years of life lost. We analysed the data separately by sex, and for people with and without a record of intellectual disability. We discuss the findings in the light of the prevalence of recorded diagnosis of autism in primary care compared to community estimates. Findings From a cohort of nearly 10 million people, we identified 17,130 participants diagnosed autistic without an intellectual disability (matched with 171,300 comparison participants), and 6450 participants diagnosed autistic with an intellectual disability (matched with 64,500 comparison participants). The apparent estimates indicated that people diagnosed with autism but not intellectual disability had 1.71 (95% CI: 1.39-2.11) times the mortality rate of people without these diagnoses. People diagnosed with autism and intellectual disability had 2.83 (95% CI: 2.33-3.43) times the mortality rate of people without these diagnoses. Likewise, the apparent reduction in life expectancy for people diagnosed with autism but not intellectual disability was 6.14 years (95% CI: 2.84-9.07) for men and 6.45 years (95% CI: 1.37-11.58 years) for women. The apparent reduction in life expectancy for people diagnosed with autism and intellectual disability was 7.28 years (95% CI: 3.78-10.27) for men and 14.59 years (95% CI: 9.45-19.02 years) for women. However, these findings are likely to be subject to exposure misclassification biases: very few autistic adults and older-adults have been diagnosed, meaning that we could only study a fraction of the total autistic population. Those who have been diagnosed may well be those with greater support needs and more co-occurring health conditions than autistic people on average. Interpretation The findings indicate that there is a group of autistic people who experience premature mortality, which is of significant concern. There is an urgent need for investigation into the reasons behind this. However, our estimates suggest that the widely reported statistic that autistic people live 16-years less on average is likely incorrect. Nine out of 10 autistic people may have been undiagnosed across the time-period studied. Hence, the results of our study do not generalise to all autistic people. Diagnosed autistic adults, and particularly older adults, are likely those with greater-than-average support needs. Therefore, we may have over-estimated the reduction in life expectancy experienced by autistic people on average. The larger reduction in life expectancy for women diagnosed with autism and intellectual disability vs. men may in part reflect disproportionate underdiagnosis of autism and/or intellectual disability in women. Funding Dunhill Medical Trust, Medical Research Council, National Institute for Health and Care Research, and the Royal College of Psychiatrists.
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Affiliation(s)
- Elizabeth O'Nions
- UCL Research Department of Clinical, Educational and Health Psychology, Division of Psychology and Language Sciences, 1 – 19 Torrington Place, London, WC1E 7HB, UK
| | - Dan Lewer
- Institute of Epidemiology and Healthcare, University College London, 1-19 Torrington Place, London, WC1E 7HB, UK
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Duckworth Lane, Bradford, BD9 6RJ, UK
| | - Irene Petersen
- UCL Research Department of Primary Care and Population Health, UCL Medical School (Royal Free Campus), Rowland Hill Street, London, NW3 2PF, UK
| | - Jude Brown
- National Autistic Society, 393 City Rd, London, EC1V 1NG, UK
| | - Joshua E.J. Buckman
- UCL Research Department of Clinical, Educational and Health Psychology, Division of Psychology and Language Sciences, 1 – 19 Torrington Place, London, WC1E 7HB, UK
- iCope – Camden & Islington NHS Foundation Trust, St Pancras Hospital, London, NW1 0PE, UK
| | - Rebecca Charlton
- Department of Psychology, Goldsmiths University of London, New Cross, London, SE14 6NW, UK
| | - Claudia Cooper
- Queen Mary University of London, Centre for Psychiatry and Mental Health, Wolfson Institute of Population Health, London, E1 2AD, UK
| | - CÉline El Baou
- UCL Research Department of Clinical, Educational and Health Psychology, Division of Psychology and Language Sciences, 1 – 19 Torrington Place, London, WC1E 7HB, UK
| | - Francesca Happé
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, Memory Lane, London, SE5 8AF, UK
| | - Jill Manthorpe
- NIHR Health & Social Care Workforce Research Unit, King's College London, Strand, London, WC2R 2LS, UK
| | - Douglas G.J. McKechnie
- UCL Research Department of Primary Care and Population Health, UCL Medical School (Royal Free Campus), Rowland Hill Street, London, NW3 2PF, UK
| | - Marcus Richards
- MRC Unit for Lifelong Health and Ageing at UCL, 1-19 Torrington Place, London, WC1E 7HB, UK
| | - Rob Saunders
- UCL Research Department of Clinical, Educational and Health Psychology, Division of Psychology and Language Sciences, 1 – 19 Torrington Place, London, WC1E 7HB, UK
| | | | - Will Mandy
- UCL Research Department of Clinical, Educational and Health Psychology, Division of Psychology and Language Sciences, 1 – 19 Torrington Place, London, WC1E 7HB, UK
| | - Joshua Stott
- UCL Research Department of Clinical, Educational and Health Psychology, Division of Psychology and Language Sciences, 1 – 19 Torrington Place, London, WC1E 7HB, UK
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Zahir R, Alcorn AM, McGeown S, Mandy W, Aitken D, Murray F, Fletcher-Watson S. Short report: Evaluation of wider community support for a neurodiversity teaching programme designed using participatory methods. Autism 2023:13623613231211046. [PMID: 37942511 DOI: 10.1177/13623613231211046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
LAY ABSTRACT Children with diagnoses such as autism, attention-deficit/hyperactivity disorder (ADHD), dyslexia and so on often experience bullying at school. This group can be described as neurodivergent, meaning they think and process information differently from most people. Previous research suggests that increasing people's knowledge can be an effective way to reduce stigma and bullying. Therefore, we decided to create a primary school resource to teach about neurodiversity - the concept that all humans vary in how our brains work. Working with educators, our research team - which included neurodivergent people - developed plans for a teaching programme called Learning About Neurodiversity at School (LEANS). Next, we wanted to know whether these plans, developed by our small neurodiverse team, would be endorsed by the wider community. To find out, we conducted an online feedback survey about our plans for the resource. We analysed feedback from 111 people who participated. Most of them identified as neurodivergent (70%) and reported being familiar with neurodiversity (98%), meaning they could provide an informed opinion on our plans. Over 90% of people expressed support for the planned programme content described in the survey, and 73% of them approved our intended definition of the resource's core concept, neurodiversity. From these results, we concluded that there was a high level of support for the planned LEANS programme content across those from the wider community who completed the survey. Consequently, we continued developing the LEANS programme in line with the initial plans from our neurodiverse team. The completed resource is now available as a free download.
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O'Nions E, McKechnie DG, Long C, Mandy W, Stott J. How can autistic adults be supported in primary care? Br J Gen Pract 2023; 73:518-521. [PMID: 37884374 PMCID: PMC10617959 DOI: 10.3399/bjgp23x735525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023] Open
Affiliation(s)
- Elizabeth O'Nions
- UCL Research Department of Clinical, Educational and Health Psychology, Division of Psychology and Language Sciences, London
| | - Douglas Gj McKechnie
- UCL Research Department of Primary Care and Population Health, UCL Medical School, London
| | | | - Will Mandy
- UCL Research Department of Clinical, Educational and Health Psychology, Division of Psychology and Language Sciences, London
| | - Joshua Stott
- UCL Research Department of Clinical, Educational and Health Psychology, Division of Psychology and Language Sciences, London
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Mandy W. The old and the new way of understanding autistic lives: Reflections on the life of Donald Triplett, the first person diagnosed as autistic. Autism 2023; 27:1853-1855. [PMID: 37665266 DOI: 10.1177/13623613231194476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
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Krijnen LJG, Greaves-Lord K, Mandy W, Mataw KJS, Hartog P, Begeer S. How Well Can we Diagnose Autism in Adults? Evaluating an Informant-based Interview: The Dutch Developmental, Dimensional and Diagnostic Interview - Adult Version (3Di-Adult). J Autism Dev Disord 2023:10.1007/s10803-023-06069-5. [PMID: 37530914 DOI: 10.1007/s10803-023-06069-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/13/2023] [Indexed: 08/03/2023]
Abstract
The current study evaluated a brief, informant-based autism interview: the Developmental, Dimensional and Diagnostic Interview - Adult Version (3Di-Adult). Feasibility, reliability and validity of the Dutch 3Di-Adult was tested amongst autistic participants (n = 62) and a non-autistic comparison group (n = 30) in the Netherlands. The 3Di-Adult consists of two scales based on DSM-5 criteria: A scale 'Social communication and social interaction' and B scale 'Restricted, repetitive patterns of behavior, interests or activities'. ROC curves were used to determine cut-off scores for the A and the B scale, using an ASD diagnosis made by an independent clinician as the criterion. Mean administration time was 42 min. Internal consistency of the A scale (α = 0.92) and the B scale (α = 0.85) were good. Inter-rater reliability (ICCs = 0.99) and inter-rater agreement (ICCs ≥ 0.90) were promising. The 3Di-Adult showed good sensitivity (80.6%) and specificity (93.3%). Positive and negative predictive value were 96.2% and 70.0% respectively. Comparisons with the Autism-Spectrum Quotient-Short to investigate the convergent validity showed moderate, significant correlations with the 3Di-Adult in the total sample. Males, as compared to females, displayed significantly more autistic features on the 3Di-Adult. No relationship was found of the 3Di-Adult with education level, intelligence and age of the participants or informants. The feasibility and psychometric properties of the Dutch 3Di-Adult are promising, indicating that it can be a time-efficient, valid and reliable tool to use in diagnosing autism in adults according to DSM-5 criteria.
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Affiliation(s)
- L J G Krijnen
- Child and Adolescent Studies, Utrecht University, Utrecht, The Netherlands.
- Department of Clinical, Neuro and Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands.
| | - K Greaves-Lord
- Department of Clinical Psychology and Experimental Psychopathology, University of Groningen, Groningen, The Netherlands
- Autism Team Northern-Netherlands, Jonx, Department of (Youth) Mental Health and Autism of Lentis Psychiatric Institute, Groningen, The Netherlands
| | - W Mandy
- Research Department of Clinical, Educational and Health Psychology, UCL, London, UK
| | - K J S Mataw
- Department of Clinical, Neuro and Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - P Hartog
- Department of Clinical, Neuro and Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - S Begeer
- Department of Clinical, Neuro and Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
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Hollingdale J, Woodhouse E, Young S, Gudjonsson G, Charman T, Mandy W. Sex differences in conduct and emotional outcomes for young people with hyperactive/inattentive traits and social communication difficulties between 9 and 16 years of age: a growth curve analysis. Psychol Med 2023; 53:4539-4549. [PMID: 35904163 PMCID: PMC10388317 DOI: 10.1017/s0033291722001416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 03/15/2022] [Accepted: 04/28/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND The purpose of this paper is to identify the trajectory of conduct and emotional problems for young people within the general population at four time points (between 9 years 7 months and 16 years 6 months), investigate their relationship with hyperactive/inattentive traits and explore the moderating effect of autistic social traits (ASTs). METHODS Data from 9305 individuals involved in The Avon Longitudinal Study of Parents and Children (ALSPAC) study were included. Conduct and emotional problems and hyperactive/inattentive traits were measured by the Strengths and Difficulties Questionnaire. ASTs were assessed using the Social Communication Disorder Checklist. Individual trajectories for conduct and emotional problems were identified via growth curve modelling. Hyperactive/inattentive traits were included within the growth curve model as a time-varying covariate to determine their effect on these outcomes. Finally, participants were split into two groups (below and above clinical threshold ASTs Groups) and multi-group invariance testing was conducted on the data to identify the moderating effect of ASTs on the relationship between hyperactive/inattentive traits and outcomes (i.e. conduct and emotional problems). RESULTS Hyperactive/inattentive traits were associated with higher rates of conduct and emotional problems for both boys and girls. The presence of ASTs moderated these relationships for boys, but not for girls, by increasing the risk of boys with hyperactive/inattentive traits developing greater conduct and emotional problems. CONCLUSIONS These findings underscore the importance of identifying hyperactive/inattentive traits and ASTs in young people and addressing the increased risk of conduct and emotional problems. Research and clinical implications are explored.
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O'Nions E, Petersen I, Buckman JE, Charlton R, Cooper C, Corbett A, Happé F, Manthorpe J, Richards M, Saunders R, Zanker C, Mandy W, Stott J. Autism in England: assessing underdiagnosis in a population-based cohort study of prospectively collected primary care data. Lancet Reg Health Eur 2023; 29:100626. [PMID: 37090088 PMCID: PMC10114511 DOI: 10.1016/j.lanepe.2023.100626] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 04/05/2023] Open
Abstract
Background Autism has long been viewed as a paediatric condition, meaning that many autistic adults missed out on a diagnosis as children when autism was little known. We estimated numbers of diagnosed and undiagnosed autistic people in England, and examined how diagnostic rates differed by socio-demographic factors. Methods This population-based cohort study of prospectively collected primary care data from IQVIA Medical Research Data (IMRD) compared the prevalence of diagnosed autism to community prevalence to estimate underdiagnosis. 602,433 individuals registered at an English primary care practice in 2018 and 5,586,100 individuals registered between 2000 and 2018 were included. Findings Rates of diagnosed autism in children/young people were much higher than in adults/older adults. As of 2018, 2.94% of 10- to 14-year-olds had a diagnosis (1 in 34), vs. 0.02% aged 70+ (1 in 6000). Exploratory projections based on these data suggest that, as of 2018, 463,500 people (0.82% of the English population) may have been diagnosed autistic, and between 435,700 and 1,197,300 may be autistic and undiagnosed (59-72% of autistic people, 0.77%-2.12% of the English population). Age-related inequalities were also evident in new diagnoses (incidence): c.1 in 250 5- to 9-year-olds had a newly-recorded autism diagnosis in 2018, vs. c.1 in 4000 20- to 49-year-olds, and c.1 in 18,000 people aged 50+. Interpretation Substantial age-related differences in the proportions of people diagnosed suggest an urgent need to improve access to adult autism diagnostic services. Funding Dunhill Medical Trust, Economic and Social Research Council, Medical Research Council, National Institute for Health Research, the Wellcome Trust, and the Royal College of Psychiatrists.
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Abstract
BACKGROUND Autistic people show diverse trajectories of autistic traits over time, a phenomenon labelled 'chronogeneity'. For example, some show a decrease in symptoms, whilst others experience an intensification of difficulties. Autism spectrum disorder (ASD) is a dimensional condition, representing one end of a trait continuum that extends throughout the population. To date, no studies have investigated chronogeneity across the full range of autistic traits. We investigated the nature and clinical significance of autism trait chronogeneity in a large, general population sample. METHODS Autistic social/communication traits (ASTs) were measured in the Avon Longitudinal Study of Parents and Children using the Social and Communication Disorders Checklist (SCDC) at ages 7, 10, 13 and 16 (N = 9744). We used Growth Mixture Modelling (GMM) to identify groups defined by their AST trajectories. Measures of ASD diagnosis, sex, IQ and mental health (internalising and externalising) were used to investigate external validity of the derived trajectory groups. RESULTS The selected GMM model identified four AST trajectory groups: (i) Persistent High (2.3% of sample), (ii) Persistent Low (83.5%), (iii) Increasing (7.3%) and (iv) Decreasing (6.9%) trajectories. The Increasing group, in which females were a slight majority (53.2%), showed dramatic increases in SCDC scores during adolescence, accompanied by escalating internalising and externalising difficulties. Two-thirds (63.6%) of the Decreasing group were male. CONCLUSIONS Clinicians should note that for some young people autism-trait-like social difficulties first emerge during adolescence accompanied by problems with mood, anxiety, conduct and attention. A converse, majority-male group shows decreasing social difficulties during adolescence.
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Affiliation(s)
- Richard Pender
- University College London, Division of Psychiatry, Maple House, 149 Tottenham Court Road, London W1T 7BN, UK
| | - Pasco Fearon
- University College London, Research Department of Clinical, Educational and Health Psychology, 1-19 Torrington Place, London WC1E 7HB, UK
| | - Beate St Pourcain
- Max Planck Institute for Psycholinguistics, Wundtlaan 1, 6525 XD Nijmegen, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, The Netherlands
- MRC Integrative Epidemiology Unit, University of Bristol, UK
| | - Jon Heron
- Bristol Medical School, University of Bristol, Population Health Sciences, Oakfield House, Clifton BS8 2BN, UK
| | - Will Mandy
- University College London, Research Department of Clinical, Educational and Health Psychology, 1-19 Torrington Place, London WC1E 7HB, UK
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Ali D, O'Brien S, Hull L, Kenny L, Mandy W. 'The key to this is not so much the technology. It's the individual who is using the technology': Perspectives on telehealth delivery for autistic adults during the COVID-19 pandemic. Autism 2023; 27:552-564. [PMID: 35791666 PMCID: PMC10076158 DOI: 10.1177/13623613221108010] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
LAY ABSTRACT The COVID-19 pandemic meant that a lot of healthcare services had to move online, such as to video-calls, or to telephone. However, not many studies have looked at how autistic adults feel about this kind of service delivery. It is important to know this, as autistic people may have poorer health than non-autistic people, and they may also struggle to access services more than non-autistic people. This study asked 11 autistic adults (aged 27-67 years), seven family members/carers (aged 44-75) reporting about autistic adults and six service providers about their experiences of accessing or providing a telehealth service. These experiences were collected through interviews, which were then analysed through thematic analysis. Two main themes were: technology aids communication and access - except when it doesn't, and in/flexibility. The themes pointed out some positive aspects of telehealth delivery, including improved communication and decreased stress. The themes also pointed out negative aspects of telehealth, such as increased rigidity of the healthcare system, amplifying pre-existing barriers. Because autistic people have many barriers to accessing healthcare, this study encourages researchers and healthcare providers to think about how such barriers could be addressed through telehealth, and about the possible limitations of telehealth for some autistic people.
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Affiliation(s)
- Dorota Ali
- Autistica, London, UK.,King's College London, UK
| | | | - Laura Hull
- University of Bristol, UK.,University College London, UK
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Milner V, Mandy W, Happé F, Colvert E. Sex differences in predictors and outcomes of camouflaging: Comparing diagnosed autistic, high autistic trait and low autistic trait young adults. Autism 2023; 27:402-414. [PMID: 35652328 PMCID: PMC9902997 DOI: 10.1177/13623613221098240] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
LAY ABSTRACT Many autistic people use strategies that help them adapt in social situations and hide behaviours that may seem different to non-autistic individuals - this is called camouflaging. Camouflaging may help autistic people fit in socially; however, it might also lead to poorer well-being. It has been suggested that autistic females camouflage more than autistic males. This article explored differences between males and females who have an autism diagnosis, have characteristics of autism but no diagnosis and those with few autistic characteristics. It is important to include these groups as camouflaging may make it more difficult to get an autism diagnosis and therefore make it less likely a person will receive support. We found that autistic women camouflaged more than all other groups. The group with few autistic characteristics (males and females) camouflaged the least. Loneliness was found to be a possible reason for camouflaging for the diagnosed autistic group only. In terms of outcomes related to camouflaging, it was found that those who camouflaged most had a lower quality of life; this was true of all groups. This tells us that there may be different reasons to camouflage, and different outcomes related to camouflaging for those with many characteristics of autism (including those with a diagnosis), and those with few. It is important that clinicians, teachers, parents and other stakeholders are aware of the negative outcomes associated with camouflaging so that more support can be provided for those who need it.
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Mandy W, Midouhas E, Hosozawa M, Cable N, Sacker A, Flouri E. Mental health and social difficulties of late-diagnosed autistic children, across childhood and adolescence. J Child Psychol Psychiatry 2022; 63:1405-1414. [PMID: 35174492 PMCID: PMC9790627 DOI: 10.1111/jcpp.13587] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/17/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Autism can be diagnosed from 2 years of age, although most autistic people receive their diagnosis later than this after they have started education. Research is required to understand why some autistic children are diagnosed late, and the level and nature of unmet need prior to diagnosis for late-diagnosed children. METHODS We examined trajectories of emotional, behavioural and social difficulties (EBSDs) across childhood and adolescence, comparing 'earlier-diagnosed' (diagnosed 7 years or younger) with 'late-diagnosed' (diagnosed between 8 and 14 years) autistic children. Data were from the Millennium Cohort Study, a population-based UK birth cohort. EBSDs were measured using the parent-report Strengths and Difficulties Questionnaire, at 3, 5, 7, 11 and 14 years. We used Growth Curve Modelling to investigate levels and rates of change in these difficulties, and to compare earlier- (n = 146) and late-diagnosed (n = 284) autistic children. RESULTS Aged 5, earlier-diagnosed autistic children had more emotional (i.e., internalising), conduct, hyperactivity and social difficulties; although clinical difficulties in these areas were nevertheless common in late-diagnosed children. There was a faster annual increase in scores for all domains for late-diagnosed children, and by age 14 years, they had higher levels of EBSDs. These results persisted when we ran adjusted models, to account for the late-diagnosed group having higher rates of late-diagnosed attention deficit/hyperactivity disorder, higher IQ, a higher proportion of females and older and more educated mothers. CONCLUSIONS Emotional, behavioural and social difficulties are associated with, and may influence, the timing of autism diagnosis. Late-diagnosed autistic children often have high levels of mental health and social difficulties prior to their autism diagnosis, and tend to develop even more severe problems as they enter adolescence.
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Affiliation(s)
- Will Mandy
- Research Department of Clinical, Educational and Health PsychologyUCLLondonUK
| | - Emily Midouhas
- Department of Psychology and Human DevelopmentInstitute of EducationUCLLondonUK
| | - Mariko Hosozawa
- Department of Epidemiology and Public HealthUCLLondonUK,Institute for Global Health Policy ResearchNational Center for Global Health and MedicineTokyoJapan,Department of Paediatrics and Adolescent MedicineJuntendo UniversityTokyoJapan
| | - Noriko Cable
- Department of Epidemiology and Public HealthUCLLondonUK
| | - Amanda Sacker
- Department of Epidemiology and Public HealthUCLLondonUK
| | - Eirini Flouri
- Department of Psychology and Human DevelopmentInstitute of EducationUCLLondonUK
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Adamson J, Brede J, Babb C, Serpell L, Jones CRG, Fox J, Mandy W. Towards identifying a method of screening for autism amongst women with restrictive eating disorders. Euro Eating Disorders Rev 2022; 30:592-603. [PMID: 35791612 PMCID: PMC9540024 DOI: 10.1002/erv.2918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 04/25/2022] [Indexed: 01/09/2023]
Affiliation(s)
- James Adamson
- Research Department of Clinical, Educational and Health Psychology University College London London UK
| | - Janina Brede
- Research Department of Clinical, Educational and Health Psychology University College London London UK
| | - Charli Babb
- School of Psychology Cardiff University Cardiff UK
| | - Lucy Serpell
- Research Department of Clinical, Educational and Health Psychology University College London London UK
- Eating Disorders Service North East London Foundation NHS Trust Barking Essex UK
| | | | - John Fox
- School of Psychology Cardiff University Cardiff UK
| | - Will Mandy
- Research Department of Clinical, Educational and Health Psychology University College London London UK
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18
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Brede J, Cage E, Trott J, Palmer L, Smith A, Serpell L, Mandy W, Russell A. “We Have to Try to Find a Way, a Clinical Bridge” - autistic adults' experience of accessing and receiving support for mental health difficulties: A systematic review and thematic meta-synthesis. Clin Psychol Rev 2022; 93:102131. [DOI: 10.1016/j.cpr.2022.102131] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 12/04/2021] [Accepted: 01/28/2022] [Indexed: 12/28/2022]
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19
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Bundy R, Mandy W, Crane L, Belcher H, Bourne L, Brede J, Hull L, Brinkert J, Cook J. The impact of early stages of COVID-19 on the mental health of autistic adults in the United Kingdom: A longitudinal mixed-methods study. Autism 2022; 26:1765-1782. [PMID: 35083922 PMCID: PMC9483192 DOI: 10.1177/13623613211065543] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We used mixed methods to learn about the nature and drivers of mental health changes among autistic adults in the United Kingdom during the early stages of the COVID-19 pandemic. In quantitative analyses, we examined the nature and predictors of change in depression, anxiety and stress, prospectively measured in 70 autistic adults at Wave 1 (just before the United Kingdom’s first lockdown) and Wave 2 (10–15 weeks into the United Kingdom’s first lockdown). Retrospective Wave 2 reports of mental health change were also analysed for these 70 participants. For the qualitative analysis, 133 participants (including the 70 from the quantitative analyses) provided reports on their experiences of the pandemic at Wave 2. In quantitative analyses, retrospective reports indicated that participants’ mental health worsened, but prospective data showed a different picture, with overall anxiety and stress scores reducing between Waves 1 and 2. Nevertheless, the mental health impact of the pandemic on autistic adults was variable, with a sizable minority reporting a significant decline in mental health. Qualitative analysis yielded four themes that contributed to mental health changes: (a) adjusting to changes to the social world, (b) living with uncertainty, (c) disruptions to self-regulation, and (d) barriers to fulfilling basic needs.
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Stark E, Stacey J, Mandy W, Kringelbach ML, Happé F. 'Uncertainty attunement' has explanatory value in understanding autistic anxiety. Trends Cogn Sci 2021; 25:1011-1012. [PMID: 34686440 DOI: 10.1016/j.tics.2021.09.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 11/15/2022]
Affiliation(s)
- Eloise Stark
- Department of Psychiatry, University of Oxford, Oxford, UK; Oxford Health NHS Foundation Trust, Warneford Hospital, Oxford, UK.
| | - James Stacey
- Oxford Health NHS Foundation Trust, Warneford Hospital, Oxford, UK
| | - Will Mandy
- Research Department of Clinical, Educational and Health Psychology, University College London, London, UK
| | - Morten L Kringelbach
- Department of Psychiatry, University of Oxford, Oxford, UK; Center for Music in the Brain, Department of Clinical Medicine, Aarhus University, Denmark
| | - Francesca Happé
- Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK
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Belcher HL, Morein-Zamir S, Mandy W, Ford RM. Camouflaging Intent, First Impressions, and Age of ASC Diagnosis in Autistic Men and Women. J Autism Dev Disord 2021; 52:3413-3426. [PMID: 34342806 PMCID: PMC9296412 DOI: 10.1007/s10803-021-05221-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2021] [Indexed: 12/26/2022]
Abstract
Camouflaging of autistic traits may make autism harder to diagnose. The current study evaluated the relations between camouflaging intent, first impressions, and age of autism diagnosis. Participants comprised autistic and non-autistic adults (n = 80, 50% female) who completed the Camouflaging of Autistic Traits Questionnaire. They were later video-recorded having a conversation with a person unaware of their diagnostic status. Ten-second clips from half these videos were later shown to 127 non-autistic peers, who rated their first impressions of each participant. Results showed that autistic participants were rated more poorly on first impressions, males were rated less favourably than females, and male raters were particularly harsh in their evaluations of autistic males. Camouflaging intent did not predict first impressions but better first impressions were linked with a later age of diagnosis.
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Affiliation(s)
- Hannah L Belcher
- School of Psychology and Sport Science, Anglia Ruskin University, East Road, Cambridge, CB1 1PT, UK. .,IOPPN, King's College London, 16 Crespigny Park, Camberwell, London, SE5 8AB, UK.
| | - Sharon Morein-Zamir
- School of Psychology and Sport Science, Anglia Ruskin University, East Road, Cambridge, CB1 1PT, UK
| | - Will Mandy
- University College London, 1-19 Torrington Place, Bloomsbury, London, WC1E 7HB, UK
| | - Ruth M Ford
- School of Psychology and Sport Science, Anglia Ruskin University, East Road, Cambridge, CB1 1PT, UK
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22
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Babb C, Brede J, Jones CRG, Elliott M, Zanker C, Tchanturia K, Serpell L, Mandy W, Fox JRE. 'It's not that they don't want to access the support . . . it's the impact of the autism': The experience of eating disorder services from the perspective of autistic women, parents and healthcare professionals. Autism 2021; 25:1409-1421. [PMID: 33588579 PMCID: PMC8264634 DOI: 10.1177/1362361321991257] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
LAY ABSTRACT This study explores autistic women's experiences of eating disorder services. About 20%-30% of people with anorexia nervosa are also autistic, and current treatments seem not to work as well for them. We interviewed 15 autistic women with experience of anorexia nervosa, 12 parents of autistic women with anorexia nervosa, and 11 healthcare professionals working in eating disorder services. We asked autistic women and parents about their experiences of eating disorder services, and we asked healthcare professionals about their experiences treating autistic women with anorexia nervosa. Participants' views were represented by three overall themes: misunderstanding autism and autistic traits, one treatment does not fit all, and improving accessibility and engagement within services. We found that autistic women face many barriers when in treatment for anorexia nervosa, often because of a lack of autism understanding within eating disorder services. Future research should look at developing anorexia nervosa treatments that can specifically help autistic individuals.
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Affiliation(s)
| | | | | | | | | | | | - Lucy Serpell
- University College London, UK
- Eating Disorder Service, North East London NHS Foundation Trust, Essex, UK
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23
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Stark E, Stacey J, Mandy W, Kringelbach ML, Happé F. Autistic Cognition: Charting Routes to Anxiety. Trends Cogn Sci 2021; 25:571-581. [PMID: 33958281 DOI: 10.1016/j.tics.2021.03.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 12/28/2022]
Abstract
Autism Spectrum Conditions are typified by a divergence in cognitive style from that of the non-autistic population. Cognitive differences in autism may underlie significant strengths, but also increase vulnerability to psychopathology such as anxiety, which is a major problem for many autistic people. Many autistic people also do not respond to typical psychotherapeutic interventions, suggesting that autism-specific models and interventions are needed. We advance a theoretical model explaining how three constructs, attenuated predictions, intolerance of uncertainty, and 'black and white thinking', may interact to lead to anxiety in autism. We hope to start a dialogue surrounding how we can best address specific autistic cognitive differences that may lead to distress by developing appropriate models, measurements, and psychotherapeutic interventions.
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Affiliation(s)
- Eloise Stark
- Department of Psychiatry, University of Oxford, Oxford, UK; Oxford Health National Health Service (NHS) Foundation Trust, Warneford Hospital, Oxford, UK.
| | - James Stacey
- Oxford Health National Health Service (NHS) Foundation Trust, Warneford Hospital, Oxford, UK
| | - Will Mandy
- Research Department of Clinical, Educational, and Health Psychology, University College London, 1-19 Torrington Place, London, UK
| | - Morten L Kringelbach
- Department of Psychiatry, University of Oxford, Oxford, UK; Center for Music in the Brain, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Francesca Happé
- Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK
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Hull L, Levy L, Lai MC, Petrides KV, Baron-Cohen S, Allison C, Smith P, Mandy W. Is social camouflaging associated with anxiety and depression in autistic adults? Mol Autism 2021; 12:13. [PMID: 33593423 PMCID: PMC7885456 DOI: 10.1186/s13229-021-00421-1] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 02/03/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND There is inconsistent evidence for a clear pattern of association between 'camouflaging' (strategies used to mask and/or compensate for autism characteristics during social interactions) and mental health. METHODS This study explored the relationship between self-reported camouflaging and generalised anxiety, depression, and social anxiety in a large sample of autistic adults and, for the first time, explored the moderating effect of gender, in an online survey. RESULTS Overall, camouflaging was associated with greater symptoms of generalised anxiety, depression, and social anxiety, although only to a small extent beyond the contribution of autistic traits and age. Camouflaging more strongly predicted generalised and social anxiety than depression. No interaction between camouflaging and gender was found. LIMITATIONS These results cannot be generalised to autistic people with intellectual disability, or autistic children and young people. The sample did not include sufficient numbers of non-binary people to run separate analyses; therefore, it is possible that camouflaging impacts mental health differently in this population. CONCLUSIONS The findings suggest that camouflaging is a risk factor for mental health problems in autistic adults without intellectual disability, regardless of gender. We also identified levels of camouflaging at which risk of mental health problems is highest, suggesting clinicians should be particularly aware of mental health problems in those who score at or above these levels.
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Affiliation(s)
- Laura Hull
- Research Department of Clinical, Educational and Health Psychology, University College London, 1-19 Torrington Place, London, WC1E 7HB UK
| | - Lily Levy
- Research Department of Clinical, Educational and Health Psychology, University College London, 1-19 Torrington Place, London, WC1E 7HB UK
- Present Address: Homerton University Hospital NHS Foundation Trust, London, UK
| | - Meng-Chuan Lai
- Centre for Addiction and Mental Health and The Hospital for Sick Children, Department of Psychiatry, University of Toronto, Toronto, Canada
- Autism Research Centre, Department of Psychiatry, University of Cambridge, Cambridge, UK
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - K. V. Petrides
- London Psychometrics Laboratory, University College London, London, UK
| | - Simon Baron-Cohen
- Autism Research Centre, Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Carrie Allison
- Autism Research Centre, Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Paula Smith
- Autism Research Centre, Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Will Mandy
- Research Department of Clinical, Educational and Health Psychology, University College London, 1-19 Torrington Place, London, WC1E 7HB UK
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Brede J, Babb C, Jones C, Elliott M, Zanker C, Tchanturia K, Serpell L, Fox J, Mandy W. "For Me, the Anorexia is Just a Symptom, and the Cause is the Autism": Investigating Restrictive Eating Disorders in Autistic Women. J Autism Dev Disord 2020; 50:4280-4296. [PMID: 32274604 PMCID: PMC7677288 DOI: 10.1007/s10803-020-04479-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Autistic women are overrepresented among people in treatment for Anorexia Nervosa (AN). The current study aimed to: (1) better understand how AN develops and persists in autistic individuals from the perspective of autistic women, parents and healthcare professionals; (2) derive a theoretical model of restrictive eating difficulties in autism. We conducted 44 semi-structured interviews and used Thematic Analysis to identify patterns of meaning across the data. Themes related to sensory sensitivities, social interaction and relationships, sense of self and identity, difficulties with emotions, thinking styles, and a need for control and predictability. We developed a model of potential autism-specific mechanisms underlying restrictive eating difficulties. This study generated novel insights, which have the potential to inform treatment adaptations following empirical testing.
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Affiliation(s)
- Janina Brede
- Research Department of Clinical, Educational and Health Psychology, University College London, 1-19 Torrington Place, London, WC1E 6BT UK
| | - Charli Babb
- School of Psychology, Cardiff University, Park Place, Cardiff, CF10 3AT UK
| | - Catherine Jones
- School of Psychology, Cardiff University, Park Place, Cardiff, CF10 3AT UK
| | - Mair Elliott
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, De Crespigny Park, London, SE5 8AF UK
| | | | | | - Lucy Serpell
- Research Department of Clinical, Educational and Health Psychology, University College London, 1-19 Torrington Place, London, WC1E 6BT UK
| | - John Fox
- School of Psychology, Cardiff University, Park Place, Cardiff, CF10 3AT UK
| | - Will Mandy
- Research Department of Clinical, Educational and Health Psychology, University College London, 1-19 Torrington Place, London, WC1E 6BT UK
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Woodcock KA, Cheung C, González Marx D, Mandy W. Social Decision Making in Autistic Adolescents: The Role of Theory of Mind, Executive Functioning and Emotion Regulation. J Autism Dev Disord 2020; 50:2501-2512. [PMID: 30879258 DOI: 10.1007/s10803-019-03975-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Social decision making is often challenging for autistic individuals. Twenty autistic adolescents made decisions in the socially interactive context of a one-shot ultimatum game, and performance was compared to a large matched typical reference sample. Theory of mind, executive functioning and emotion regulation were measured via direct assessments, self- and parent report. Relative to the reference sample, autistic adolescents proposed fewer fair offers, and this was associated with poorer theory of mind. Autistic adolescents responded similarly to the reference sample when making decisions about offers proposed to them, however they did not appear to down regulate their negative emotion in response to unfair treatment in the same way. Atypical processes may underpin even apparently typical decisions made by autistic adolescents.
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Affiliation(s)
- Kate Anne Woodcock
- Centre for Applied Psychology & Institute for Mental Health, University of Birmingham, Birmingham, UK.
- School of Psychology, Queen's University Belfast, Belfast, Northern Ireland, UK.
- School of Psychology, University of Birmingham, 52 Pritchatts Road, Edgbaston, Birmingham, B15 2SA, UK.
| | - Catherine Cheung
- Division of Psychology and Language Sciences, University College London, London, UK
| | - Daniel González Marx
- School of Psychology, Queen's University Belfast, Belfast, Northern Ireland, UK
- Faculty of Physics, University of Göttingen, Göttingen, Germany
| | - Will Mandy
- Division of Psychology and Language Sciences, University College London, London, UK
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Hollingdale J, Woodhouse E, Young S, Fridman A, Mandy W. Autistic Spectrum Disorder symptoms in children and adolescents with Attention-deficit/hyperactivity disorder: a meta-analytical review - Corrigendum. Psychol Med 2020; 50:2254. [PMID: 31625498 DOI: 10.1017/s0033291719002873] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Hollingdale J, Woodhouse E, Young S, Fridman A, Mandy W. Autistic spectrum disorder symptoms in children and adolescents with attention-deficit/hyperactivity disorder: a meta-analytical review. Psychol Med 2020; 50:2240-2253. [PMID: 31530292 DOI: 10.1017/s0033291719002368] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Research identifies highly variable prevalence estimates for autism spectrum disorder (ASD) in children and adolescents with attention deficit hyperactivity disorder (ADHD), particularly between community and clinical samples, warranting quantitative meta-analyses to investigate the true prevalence of ASD in children and adolescents with ADHD. METHODS Studies were identified through a systematic literature search of PsycINFO, MEDLINE and Web of Science through January 2018. Twenty-two publications met inclusion criteria (total N = 61 985). Two random effects meta-analyses were conducted: (1) to identify the proportion of children and adolescents with ADHD that met criteria for ASD; and (2) to compare the severity of dimensionally-measured ASD symptomology in children and adolescents with and without ADHD. RESULTS The overall pooled effect for children and adolescents with ADHD who met threshold for ASD was 21%. There was no significant difference between community samples (19%) and clinical samples (24%) or between US studies v. those from other countries. Children and adolescents with ADHD had substantially more dimensionally-measured ASD traits compared with those who did not have ADHD (d = 1.23). CONCLUSION The findings provide further evidence that ADHD and ASD are associated in nature. Clinical and research implications are discussed.
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Maresh K, Papageorgiou A, Ridout D, Harrison N, Mandy W, Skuse D, Muntoni F. DMD – BIOMARKERS & OUTCOME MEASURES. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wolstencroft J, Robinson L, Srinivasan R, Kerry E, Mandy W, Skuse D. A Systematic Review of Group Social Skills Interventions, and Meta-analysis of Outcomes, for Children with High Functioning ASD. J Autism Dev Disord 2019; 48:2293-2307. [PMID: 29423608 PMCID: PMC5996019 DOI: 10.1007/s10803-018-3485-1] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Group social skills interventions (GSSIs) are a commonly offered treatment for children with high functioning ASD. We critically evaluated GSSI randomised controlled trials for those aged 6–25 years. Our meta-analysis of outcomes emphasised internal validity, thus was restricted to trials that used the parent-report social responsiveness scale (SRS) or the social skills rating system (SSRS). Large positive effect sizes were found for the SRS total score, plus the social communication and restricted interests and repetitive behaviours subscales. The SSRS social skills subscale improved with moderate effect size. Moderator analysis of the SRS showed that GSSIs that include parent-groups, and are of greater duration or intensity, obtained larger effect sizes. We recommend future trials distinguish gains in children’s social knowledge from social performance.
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Affiliation(s)
- J. Wolstencroft
- The Great Ormond Street Institute of Child Health, University College London, 30 Guilford Street, London, WC1N 1EH UK
| | - L. Robinson
- Institute of Psychiatry, King’s College London, 103 Denmark Hill, London, SE5 8AF UK
| | - R. Srinivasan
- The Great Ormond Street Institute of Child Health, University College London, 30 Guilford Street, London, WC1N 1EH UK
| | - E. Kerry
- The Great Ormond Street Institute of Child Health, University College London, 30 Guilford Street, London, WC1N 1EH UK
| | - W. Mandy
- Division of Psychology and Language Sciences, Faculty of Brain Sciences, University College London, 1-19 Torrington Place, London, WC1E 6BT UK
| | - D. Skuse
- The Great Ormond Street Institute of Child Health, University College London, 30 Guilford Street, London, WC1N 1EH UK
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Abstract
Some children with high-functioning autistic spectrum conditions (ASC) have been noted clinically to produce accounts and responses akin to confabulations in neurological patients. Neurological confabulation is typically associated with abnormalities of the frontal lobes and related structures, and some forms have been linked to poor performance on source monitoring and executive function tasks. ASC has also been linked to atypical development of the frontal lobes, and impaired performance on source monitoring and executive tasks. But confabulation in autism has not to our knowledge previously been examined experimentally. So we investigated whether patterns of confabulation in autism might share similarities with neurologically-based confabulation. Tests of confabulation elicitation, source monitoring (reality monitoring, plus temporal and task context memory) and executive function were administered to four adolescents with ASC who had previously been noted to confabulate spontaneously in everyday life. Scores were compared to a typically developing (TD) and an ASC control group. One confabulating participant was significantly impaired at reality monitoring, and one was significantly worse at a task context test, relative to both the ASC and TD controls. Three of the confabulators showed impairment on measures of executive function (Brixton test; Cognitive Estimates test; Hayling Test B errors) relative to both control groups. Three were significantly poorer than the TD controls on two others (Hayling A and B times), but the ASC control group was also significantly slower at this test than the TD controls. Compared to TD controls, two of the four confabulating participants produced an abnormal number of confabulations during a confabulation elicitation questionnaire, where the ASC controls and TD controls did not differ from each other. These results raise the possibility that in at least some cases, confabulation in autism may be less related to social factors than it is to impaired source memory or poor executive function.
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Affiliation(s)
- David Spitzer
- Institute of Cognitive Neuroscience, UCL (University College London), London, UK
| | - Sarah J White
- Institute of Cognitive Neuroscience, UCL (University College London), London, UK
| | - Will Mandy
- UCL Research Department of Clinical, Education & Health Psychology, UCL (University College London), London, UK
| | - Paul W Burgess
- Institute of Cognitive Neuroscience, UCL (University College London), London, UK.
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Westwood H, Stahl D, Mandy W, Tchanturia K. The set-shifting profiles of anorexia nervosa and autism spectrum disorder using the Wisconsin Card Sorting Test: a systematic review and meta-analysis. Psychol Med 2016; 46:1809-1827. [PMID: 27109830 DOI: 10.1017/s0033291716000581] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Difficulties in set-shifting are commonly reported in both autism spectrum disorder (ASD) and anorexia nervosa (AN) populations. Despite this, it is not known whether this cognitive profile persists across different ages, or whether the profiles seen in ASD and AN are comparable. This systematic review and meta-analyses aimed to compare the set-shifting profiles, as measured by the Wisconsin Card Sorting Test (WCST) in adults and younger people with either ASD or AN, relative to healthy controls (HCs) and to statistically compare performance on the WCST between ASD and AN. In all, 24 studies on ASD and 22 studies on AN were identified. In ASD, there were significant differences between the clinical group and HCs, with the ASD group making significantly more perseverative errors, indicating greater difficulty in set-shifting [pooled effect size of d = 0.67, 95% confidence interval (CI) 0.53-0.81, p ⩽ 0.001]. This effect was consistent across the age span. For AN studies, there was a significant difference between adults with AN and HCs (d = 0.52, 95% CI 0.36-0.68, p ⩽ 0.001) but a non-significant effect in child studies (d = 0.25, 95% CI -0.05 to 0.55, z = 1.66, p = 0.096). Meta-regression indicated no effect of diagnosis (AN or ASD) on performance in adult studies but there was a non-significant trend (p = 0.053) towards children with ASD performing worse than children with AN. While difficulties with set-shifting appear to be stable in ASD, there may be differences between children and adults with AN, which warrant further investigation.
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Affiliation(s)
- H Westwood
- Psychological Medicine,King's College London,Institute of Psychiatry, Psychology & Neuroscience,London,UK
| | - D Stahl
- Department of Biostatistics,King's College London,Institute of Psychiatry, Psychology & Neuroscience,London,UK
| | - W Mandy
- University College London,Research Department of Clinical, Educational and Health Psychology,London,UK
| | - K Tchanturia
- Psychological Medicine,King's College London,Institute of Psychiatry, Psychology & Neuroscience,London,UK
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Gordon K, Murin M, Baykaner O, Roughan L, Livermore-Hardy V, Skuse D, Mandy W. A randomised controlled trial of PEGASUS, a psychoeducational programme for young people with high-functioning autism spectrum disorder. J Child Psychol Psychiatry 2015; 56:468-76. [PMID: 25132516 PMCID: PMC4402033 DOI: 10.1111/jcpp.12304] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/07/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Psychoeducation is an essential component of postdiagnostic care for people with ASD (autism spectrum disorder), but there is currently no evidence base for clinical practice. We designed, manualised and evaluated PEGASUS (psychoeducation group for autism spectrum understanding and support), a group psychoeducational programme aiming to enhance the self-awareness of young people with ASD by teaching them about their diagnosis. METHODS This single-blind RCT (randomised control trial) involved 48 young people (9-14 years) with high-functioning ASD. Half were randomly assigned to PEGASUS, administered in six weekly group sessions, with the others receiving no additional intervention. ASD-related self-awareness, the primary outcome, was evaluated using the bespoke Autism Knowledge Quiz (AKQ). Secondary outcome measures included the Rosenberg Self-Esteem Scale. All measures were collected during home visits and scored by researchers blind to group assignment. The trial is registered on ClinicalTrials (NCT01187940, http://www.clinicaltrials.gov) and was funded by the Baily Thomas Charitable Trust. RESULTS Bootstrap multiple regression showed ASD knowledge (β = .29, p < .001, 95% CIs [0.13, 0.44]) and ASD self-awareness (β = .42, p = .001, 95% CIs [0.17, 0.67]), measured by number of ASD-related personal strengths and difficulties listed by participants, increased for those who attended PEGASUS (n = 24) compared with controls (n = 24). There was no effect of PEGASUS on self-esteem by self-report (β = .10, p = .404, 95% CIs [-0.14, 0.35]) or parent report (β = .12, p = .324, 95% CIs [-0.12, 0.36]). CONCLUSIONS After PEGASUS, participants had more general knowledge about ASD, and showed a greater awareness of their collection of unique strengths and difficulties associated with ASD. Psychoeducation did not lower self-esteem. This RCT provides initial evidence for PEGASUS's efficacy as a psychoeducation programme for people with ASD.
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Affiliation(s)
- Kate Gordon
- Oxford Health NHS Foundation TrustAylesbury, Buckinghamshire, UK
| | - Marianna Murin
- Department of Child and Adolescent Mental Health, Great Ormond Street HospitalLondon, UK
| | - Ozlem Baykaner
- Department of Child and Adolescent Mental Health, Great Ormond Street HospitalLondon, UK
| | - Laura Roughan
- Department of Child and Adolescent Mental Health, Great Ormond Street HospitalLondon, UK
| | - Vaan Livermore-Hardy
- Department of Child and Adolescent Mental Health, Great Ormond Street HospitalLondon, UK
| | - David Skuse
- Behavioural and Brain Science Unit, UCL, Institute of Child HealthLondon, UK
| | - Will Mandy
- Department of Clinical Psychology, UCLLondon, UK
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Curran S, Bolton P, Rozsnyai K, Chiocchetti A, Klauck SM, Duketis E, Poustka F, Schlitt S, Freitag CM, Lee I, Muglia P, Poot M, Staal W, de Jonge MV, Ophoff RA, Lewis C, Skuse D, Mandy W, Vassos E, Fossdal R, Magnusson P, Hreidarsson S, Saemundsen E, Stefansson H, Stefansson K, Collier D. No association between a common single nucleotide polymorphism, rs4141463, in the MACROD2 gene and autism spectrum disorder. Am J Med Genet B Neuropsychiatr Genet 2011; 156B:633-9. [PMID: 21656903 DOI: 10.1002/ajmg.b.31201] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 04/25/2011] [Indexed: 01/23/2023]
Abstract
The Autism Genome Project (AGP) Consortium recently reported genome-wide significant association between autism and an intronic single nucleotide polymorphism marker, rs4141463, within the MACROD2 gene. In the present study we attempted to replicate this finding using an independent case-control design of 1,170 cases with autism spectrum disorder (ASD) (874 of which fulfilled narrow criteria for Autism (A)) from five centers within Europe (UK, Germany, the Netherlands, Italy, and Iceland), and 35,307 controls. The combined sample size gave us a non-centrality parameter (NCP) of 11.9, with 93% power to detect allelic association of rs4141463 at an alpha of 0.05 with odds ratio of 0.84 (the best odds ratio estimate of the AGP Consortium data), and for the narrow diagnosis of autism, an NCP of 8.9 and power of 85%. Our case-control data were analyzed for association, stratified by each center, and the summary statistics were combined using the meta-analysis program, GWAMA. This resulted in an odds ratio (OR) of 1.03 (95% CI 0.944-1.133), with a P-value of 0.5 for ASD and OR of 0.99 (95% CI 0.88-1.11) with P-value = 0.85 for the Autism (A) sub-group. Therefore, this study does not provide support for the reported association between rs4141463 and autism.
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Affiliation(s)
- Sarah Curran
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Kings College London, UK.
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Lawrence K, Bernstein D, Pearson R, Mandy W, Campbell R, Skuse D. Changing abilities in recognition of unfamiliar face photographs through childhood and adolescence: Performance on a test of non-verbal immediate memory (Warrington RMF) from 6 to 16 years. J Neuropsychol 2011; 2:27-45. [DOI: 10.1348/174866407x231074] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Lawrence K, Jones A, Oreland L, Spektor D, Mandy W, Campbell R, Skuse D. The development of mental state attributions in women with X-monosomy, and the role of monoamine oxidase B in the sociocognitive phenotype. Cognition 2007; 102:84-100. [PMID: 16412409 DOI: 10.1016/j.cognition.2005.12.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2005] [Revised: 12/01/2005] [Accepted: 12/06/2005] [Indexed: 01/15/2023]
Abstract
We hypothesized that women with Turner syndrome (45,X) with a single X-chromosome inherited from their mother may show mentalizing deficits compared to women of normal karyotype with two X-chromosomes (46,X). Simple geometrical animation events (two triangles moving with apparent intention in relation to each other) which usually elicit mental-state descriptions in normally developing people, did not do so to the same extent in women with Turner syndrome. We then investigated the potential role in this deficit played by monoamine oxidase B enzymatic activity. MAO-B activity reflects central serotonergic activity, and by implication the functional integrity of neural circuits implicated in mentalizing. Platelet MAO-B was substantially reduced in Turner syndrome. However, contrary to prediction, in this (relatively small) sample there was no association between MAO-B enzymatic activity and mentalizing skills in participants with and without Turner syndrome.
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Affiliation(s)
- K Lawrence
- Behavioural and Brain Sciences, Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK
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Abstract
Conventional serodiagnosis of Pythium insidiosum infections involves the use of the immunodiffusion (ID) test. This test specifically diagnoses human and animal pythiosis. The test, however, has limited sensitivity and does not detect some culturally proven cases of the disease. Because of the increased recognition of pythiosis among humans and animals, we developed and evaluated an enzyme-linked immunosorbent assay (ELISA) using a soluble antigen from broken hyphae of P. insidiosum. Studies were carried out with sera from five humans and eight animals with culturally and/or histologically proven pythiosis. Some of these sera were negative in the ID test for pythiosis. Heterologous case sera from thirteen humans and two horses, plus 5 sera from healthy humans and 17 from healthy animals, were tested. Of the pythiosis case sera tested, the ID test detected only 8 of 13 (61.5%), whereas the ELISA detected all of them (100%). The ID and ELISA tests were entirely specific and gave negative results or low titers respectively, with sera from humans and animals with heterologous fungal infections or with no apparent illness. No correlation was found between the height of the ELISA titers and negative or positive sera in the ID test. Our results indicate that the ELISA is a reliable serodiagnostic test for pythiosis. It is as specific as the ID test but more sensitive.
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Affiliation(s)
- L Mendoza
- Medical Technology Program, Michigan State University, East Lansing 48824-1031, USA.
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Cazenave PA, Brézin C, Puget A, Mandy W. [Phylogeny of the e allotypic system of rabbit immunoglobulins: study of determinants recognized on ochotona IgG by anti-e15 antisera]. Ann Immunol (Paris) 1977; 128:323-7. [PMID: 66900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The phylogenetic studies of Cgamma allotypes already made in the Leporidae was extended to another family of lagomorphs, the Ochotonidae. The d allotypic system is only found in rabbits; thus, it appeared late in the lagomorphs evolution. The e system has two alleles (e14 and e15, present in rabbits and in another Leporidae genus (Sylvilagus). Previous studies on hare IgG showed that e15 pattern is composed of at least two " determinants " (or group of determinants) i and j. The hare has three allotypic patterns i+j+, i+j- and i-j-. All the studied ochotonae (from Afghanistan and Iran) possess the i determinant. From comparisons between results obtained with various genera of lagomorphs, and hypothetical scheme is proposed for the evolution of the Cgamma gene on the basis of the series allotypes.
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Hashimoto N, Chandor S, Mandy W, Yokoyama M. Atypical IgA with hidden light chain. Clin Exp Immunol 1970; 6:941-9. [PMID: 4991092 PMCID: PMC1712808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
A 64-year-old Caucasian male was examined following complaints of persistent malaise and fatigue. Electrophoretic analysis of the patient's serum revealed a paraprotein spike which was initially attributed to α chains. However, subsequent reduction and alkylation of the purified protein showed the presence of free light chains of κ type. Further proof of the κ type light chains was obtained from tests with antisera to the paraprotein. This case represents another instance of a `hidden' light chain in a paraprotein, possibly related to the tertiary structure and not a case of α-chain disease as initially thought.
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Mandy W. Characterization of allotype A11 in rabbits: A specificity detected by agglutination. Mol Immunol 1969. [DOI: 10.1016/0161-5890(69)90061-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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