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Subtypes of stuttering determined by latent class analysis in two Swiss epidemiological surveys

Howell, P; Ajdacic-Gross, V; Bechtiger, L; Rodgers, S; Müller, M; Kawohl, W; Von Känel, R; ... Preisig, M; + view all (2018) Subtypes of stuttering determined by latent class analysis in two Swiss epidemiological surveys. PLOS ONE , 13 (8) , Article e0198450. 10.1371/journal.pone.0198450. Green open access

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Abstract

Aims: Associations between stuttering in childhood and a broad spectrum of risk factors, associated factors and comorbidities were examined in two large epidemiological studies. Subtypes of stuttering were then identified based on latent class analysis (LCA). / Methods: Data were from two representative Swiss population samples: PsyCoLaus (N = 4,874, age 35–82 years) and the ZInEP Epidemiology Survey (N = 1,500, age 20–41 years). Associations between stuttering and sociodemographic characteristics, familial aggregation, comorbidity and psychosocial risk / associated factors were investigated in both samples. LCAs were conducted on selected items from people in both samples who reported having stuttered in childhood. / Results: Initial analyses linked early anxiety disorders, such as separation anxiety disorder and overanxious disorder, to stuttering (PsyCoLaus). ADHD was associated with stuttering in both datasets. In the analyses of risk / associated factors, dysfunctional parental relationships, inter-parental violence and further childhood adversities were mutual predictors of stuttering. Moreover, comorbidities were seen with hay fever, asthma, eczema and psoriasis (PsyCoLaus). Subsequent LCA identified an unspecific group of persons who self-reported that they stuttered and a group defined by associations with psychosocial adversities (ZINEP, PsyCoLaus) and atopic diseases (PsyCoLaus). / Conclusions: The two subtypes of developmental stuttering have different risk / associated factors and comorbidity patterns. Most of the factors are associated with vulnerability mechanisms that occur early in life and that have also been linked with other neurodevelopmental disorders. Both psychosocial and biological factors appear to be involved in the etiopathogenesis of stuttering.

Type: Article
Title: Subtypes of stuttering determined by latent class analysis in two Swiss epidemiological surveys
Open access status: An open access version is available from UCL Discovery
DOI: 10.1371/journal.pone.0198450
Publisher version: https://doi.org/10.1371/journal.pone.0198450
Language: English
Additional information: Copyright © 2018 Ajdacic-Gross et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Keywords: Stuttering, ADHD, Anxiety disorders, Psychological and psychosocial issues, Neurodevelopmental disorders, Epidemiology, Allergic rhinitis, Psoriasis
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Experimental Psychology
URI: https://discovery.ucl.ac.uk/id/eprint/10050022
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