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Changes in diagnosis rates and behavioural traits of autism spectrum disorder over time

Published online by Cambridge University Press:  02 January 2018

Ginny Russell ,
Stephan Collishaw ,
Jean Golding ,
Susan E. Kelly  and
Tamsin Ford
Ginny Russell*
Affiliation:
Institute of Health Research, University of Exeter Medical School, Exeter, UK
Stephan Collishaw
Affiliation:
Institute of Psychological Medicine and Clinical Neurosciences, Cardiff University School of Medicine, Cardiff, UK
Jean Golding
Affiliation:
Centre for Child & Adolescent Health, School of Social & Community Medicine, University of Bristol, Bristol, UK
Susan E. Kelly
Affiliation:
Department of Sociology, Philosophy and Anthropology, School of Social Science, University of Exeter, Exeter, UK
Tamsin Ford
Affiliation:
Institute of Health Research, University of Exeter Medical School, Exeter, UK
*
Ginny Russell, Institute of Health Research, University of Exeter Medical School, South Cloisters, St Luke's Campus, Exeter EX1 2LU, UK. Email: [email protected]
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Abstract

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Background

The increased proportion of UK children diagnosed with autism spectrum disorder (ASD) has been attributed to improved identification, rather than true increase in incidence.

Aim

To explore whether the proportion of children with diagnosis of ASD and/or the proportion with associated behavioural traits had increased over a 10-year period.

Method

A cross-cohort comparison using regression to compare prevalence of diagnosis and behavioural traits over time. Participants were children aged 7 years assessed in 1998/1999 (n=8139) and 2007/2008 (n=13831).

Results

During 1998/1999, 1.09% (95% CI 0.86–1.37) of children were reported as having ASD diagnosis compared with 1.68% (95% CI 1.42–2.00) in 2007/2008: risk ratio (RR)=1.55 (95% CI 1.17–2.06), P=0.003. The proportion of children in the population with behavioural traits associated with ASD was also larger in the later cohort: RR=1.61 (95% CI 1.35–1.92), P<0.001. Increased odds of diagnosis at the later time point was partially accounted for by adjusting for the increased proportion of children with ASD-type traits.

Conclusions

Increased ASD diagnosis may partially reflect increase in rates of behaviour associated with ASD and/or greater parent/teacher recognition of associated behaviours.

Type
Research Article
Information
BJPsych Open , Volume 1 , Issue 2 , October 2015 , pp. 110 - 115
Creative Commons
Creative Common License - CCCreative Common License - BYCreative Common License - NCCreative Common License - ND
This is an open access article distributed under the terms of the Creative Commons Non-Commercial, No Derivatives (CC BY-NC-ND) licence (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Copyright
Copyright © The Royal College of Psychiatrists 2015

Footnotes

Declaration of interest

None.

References

1 Weintraub, K. The prevalence puzzle: autism counts. Nat News 2011; 479: 22–4.CrossRefGoogle ScholarPubMed
2 Lotter, V. Epidemiology of autistic conditions in young children. Soc Psychiatry 1966; 1: 124–35.CrossRefGoogle Scholar
3 Baron-Cohen, S, Scott, FJ, Allison, C, Williams, J, Bolton, P, Matthews, FE, et al. Prevalence of autism-spectrum conditions: UK school-based population study. Br J Psychiatry 2009; 194: 500–9.CrossRefGoogle ScholarPubMed
4 The Centers for Disease Control and Prevention. Prevalence of Autism Spectrum Disorder among Children Aged 8 Years – Autism and Developmental Disabilities Monitoring Network, 11 Sites, United States, 2010. Morbidity and Mortality Weekly Report, 2014.Google Scholar
5 Taylor, B, Jick, H, MacLaughlin, D. Prevalence and incidence rates of autism in the UK: time trend from 2004–2010 in children aged 8 years. BMJ Open 2013; 3: e003219.CrossRefGoogle ScholarPubMed
6 Silverman, C. Understanding Autism: Parents, Doctors, and the History of a Disorder. Princeton University Press, 2011.Google Scholar
7 Fombonne, E. Is there an epidemic of autism? Pediatrics 2001; 107: 411–2.CrossRefGoogle ScholarPubMed
8 Russell, G, Kelly, S, Golding, J. A qualitative analysis of lay beliefs about the aetiology and prevalence of autistic spectrum disorders. Child Care Health Dev 2010; 36: 431–6.CrossRefGoogle ScholarPubMed
9 American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). APA, 2013.Google Scholar
10 Holtmann, M, Bölte, S, Poustka, F. Autism spectrum disorders: sex differences in autistic behaviour domains and coexisting psychopathology. Dev Med Child Neurol 2007; 49: 361–6.CrossRefGoogle ScholarPubMed
11 Collishaw, S. Annual research review: secular trends in child and adolescent mental health. J Child Psychol Psychiatry 2015; 56: 370–93.CrossRefGoogle ScholarPubMed
12 Atladottir, HO, Gyllenberg, D, Langridge, A, Sandin, S, Hansen, SN, Leonard, H, et al. The increasing prevalence of reported diagnoses of childhood psychiatric disorders: a descriptive multinational comparison. Eur Child Adolesc Psychiatry 2015; 24: 173–83.CrossRefGoogle ScholarPubMed
13 Boyd, A, Golding, J, Macleod, J, Lawlor, DA, Fraser, A, Henderson, J, et al. Cohort Profile: the ‘Children of the 90s’–the index offspring of the Avon Longitudinal Study of Parents and Children. Int J Epidemiol 2013; 42: 111–27.CrossRefGoogle Scholar
14 Golding, J, Pembrey, M, Jones, R. ALSPAC – the Avon Longitudinal Study of Parents and Children. I. Study methodology. Paediatr Perinat Epidemiol 2001; 15: 74–87.CrossRefGoogle ScholarPubMed
15 Shepherd, P. Millennium Cohort Study Ethical Review and Consent. Centre for Longitudinal Studies, Institute of Education, 2012.Google Scholar
16 Boyle, CA, Boulet, S, Schieve, LA, Cohen, RA, Blumberg, SJ, Yeargin-Allsopp, M, et al. Trends in the prevalence of developmental disabilities in US children, 1997–2008. Pediatrics 2011; 127: 1034–42.CrossRefGoogle ScholarPubMed
17 Constantino, JN, Todd, RD. Autistic traits in the general population: a twin study. Arch Gen Psychiatry 2003; 60: 524–30.CrossRefGoogle ScholarPubMed
18 Williams, E, Thomas, K, Sidebotham, H, Emond, A. Prevalence and characteristics of autistic spectrum disorders in the ALSPAC cohort. Dev Med Child Neurol 2008; 50: 672–7.CrossRefGoogle ScholarPubMed
19 World Health Organization. International Classification of Diseases and Related Health Problems (ICD-10) [Internet]. WHO, 1992.Google Scholar
20 Goodman, R. Psychometric properties of the strengths and difficulties questionnaire. J Am Acad Child Adolesc Psychiatry 2001; 40: 1337–45.CrossRefGoogle ScholarPubMed
21 Department for Education and Skills. Foundation Stage Profile: Handbook. QCA Publications, 2003.Google Scholar
22 Steer, CD, Golding, J, Bolton, PF. Traits contributing to the autistic spectrum. PLoS One 2010; 5: e12633.CrossRefGoogle Scholar
23 Collishaw, S, Goodman, R, Pickles, A, Maughan, B. Modelling the contribution of changes in family life to time trends in adolescent conduct problems. Soc Sci Med 2007; 65: 2576–87.CrossRefGoogle ScholarPubMed
24 Barnard, J, Potter, D, Broach, S, Prior, A. Autism in Schools: Crisis or Challenge? National Autistic Society, 2000.Google Scholar
25 Kulage, KM, Smaldone, AM, Cohn, EG. How will DSM-5 affect autism diagnosis? A systematic literature review and meta-analysis. J Autism Dev Disord 2014; 44: 1918–32.CrossRefGoogle ScholarPubMed
26 Sandin, S, Lichtenstein, P, Kuja-Halkola, R, Larsson, H, Hultman, CM, Reichenberg, A. The familial risk of autism. JAMA 2014; 311: 1770–7.CrossRefGoogle ScholarPubMed
27 Sandin, S, Hultman, CM, Kolevzon, A, Gross, R, MacCabe, JH, Reichenberg, A. Advancing maternal age is associated with increasing risk for autism: a review and meta-analysis. J Am Acad Child Adolesc Psychiatry 2012; 51: 477–86.e1CrossRefGoogle ScholarPubMed
28 Liu, K, King, M, Bearman, PS. Social influence and the autism epidemic. Am J Sociol 2010; 115: 1387–434.CrossRefGoogle ScholarPubMed
29 Lundström, S, Reichenberg, A, Anckarsäter, H, Lichtenstein, P, Gillberg, C. Autism phenotype versus registered diagnosis in Swedish children: prevalence trends over 10 years in general population samples. BMJ. 2015; 350: 1961.CrossRefGoogle ScholarPubMed
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