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Genetic overlap between ADHD and externalizing, internalizing and neurodevelopmental disorder symptoms: a systematic review and meta-analysis
Örebro universitet, Institutionen för medicinska vetenskaper.
Örebro universitet, Institutionen för juridik, psykologi och socialt arbete. University of Southern California, Department of Psychology, Los Angeles CA, USA.ORCID-id: 0000-0001-8768-6954
Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden.
Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden.
Vise andre og tillknytning
2018 (engelsk)Inngår i: Behavior Genetics, ISSN 0001-8244, E-ISSN 1573-3297, Vol. 48, nr 6, s. 455-456Artikkel i tidsskrift, Meeting abstract (Annet vitenskapelig) Published
Abstract [en]

Attention-Deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder (Wilens, Biederman & Spencer 2002) and affects approximately 5% of children (Polanczyk, de Lima, Horta, Biederman & Rohde 2007). About half of those diagnosed in childhood continue to have the diagnosis and symptoms in adulthood (Kessler et al. 2006). The co-occurrence of ADHD with other psychiatric disorder symptoms (Burt et al. 2001; Cole et al. 2009; Polderman et al. 2014) has been suggested to be partly explained by a shared genetic vulnerability (Polderman et al. 2014). However, the strength of the genetic overlap is currently unclear. Also, no study has examined whether the genetic correlations differs between age groups (childhood versus adulthood), by rater (self-report, other informant, combined (parent-teacher, parent-twin, teacher-twin)), or by type of psychiatric disorder symptoms (externalizing, internalizing, neu-rodevelopmental). To address this gap, we conducted a systematic literature search to identify relevant twin studies, in PubMed, PsycINFO, and EMBASE. A total of 31 articles were identified and included in the present study. The pooled estimates showed that the comorbidity between ADHD and diverse psychiatric disorder symptoms were explained by shared genetic effectsrg= 0.50 (0.43–0.56). A similar shared genetic overlap between ADHD and psychiatric disorder symptoms was observed in both childhood rg= 0.51(0.42–0.61) and adulthood rg= 0.47 (0.40–0.53). Similar results werealso found for self-reports rg= 0.49 (0.42–0.55), other informants rg= 0.50 (0.40–0.60), and combined raters rg= 0.51 (0.30–0.69). Further, the strength of the genetic correlations of ADHD with the externalizing rg= 0.49 (0.39–0.59), internalizing rg= 0.55 (0.40–0.68) and neurodevelopmental rg= 0.47 (0.40–0.53) spectrums were similar in magnitude. These findings emphasize the presence of a shared genetic liability between ADHD and externalizing, internalizing and neurodevelopmental disorder symptoms, independent of age and rater.

References

Burt, S. A., Krueger, R. F., McGue, M., Iacono, W. G. (2001).Sources of covariation among attention-deficit/hyperactivity disorder,oppositional defiant disorder, and conduct disorder: the importance ofshared environment.Journal of Abnormal Psychology, 4, 516–525.

Cole, J., Ball, H. A., Martin, N. C., Scourfield, J., McGuffin, P.(2009). Genetic overlap between measures of hyperactivity/inatten-tion and mood in children and adolescents.J Am Acad Child AdolescPsychiatry48, 1094–1101.

Kessler, R. C., Adler, L., Barkley, R., Biederman, J., Conners, C.K., Demler, O., Faraone, S. V., Greenhill, L. L., Howes, M. J., Secnik,K., Spencer, T., Ustun, T. B., Walters, E. E., Zaslavsky, A. M. (2006).The prevalence and correlates of adult ADHD in the United States:results from the National Comorbidity Survey Replication.Am JPsychiatry, 163, 716–723.

Polanczyk, G., de Lima, M. S., Horta, B. L., Biederman, J., Rohde,L. A. (2007). The worldwide prevalence of ADHD: a systematicreview and metaregression analysis.Am J Psychiatry, 164, 942-8.

Polderman, T. J., Hoekstra, R. A., Posthuma, D., Larsson, H.(2014). The co-occurrence of autistic and ADHD dimensions inadults: an etiological study in 17,770 twins.Transl Psychiatry2014;4: e435.

Wilens, T. E., Biederman, J., Spencer, T. J. (2002). Attentiondeficit/hyperactivity disorder across the lifespan.Annual Review Med53:113–131.

sted, utgiver, år, opplag, sider
Springer, 2018. Vol. 48, nr 6, s. 455-456
HSV kategori
Identifikatorer
URN: urn:nbn:se:oru:diva-70209ISI: 000448359800011OAI: oai:DiVA.org:oru-70209DiVA, id: diva2:1264596
Konferanse
48th Annual Meeting of the Behavior-Genetics-Association (BGA), Boston, USA, June 20-23, 2018
Tilgjengelig fra: 2018-11-20 Laget: 2018-11-20 Sist oppdatert: 2018-11-20bibliografisk kontrollert

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