caa a22 4500 475799887 CHVBK 20180406123734.0 cr unu---uuuuu 170329e20000901xx s 000 0 eng 10.1023/A:1002765620208 doi (NATIONALLICENCE)springer-10.1023/A:1002765620208 A Study of the Genetic and Environmental Etiology of Stuttering in a Selected Twin Sample [Elektronische Daten] [S. Felsenfeld, K. Kirk, G. Zhu, D. Statham, M. Neale, N. Martin] Stuttering is a developmental disorder of speech production that usually emerges in childhood. In this study, a large population-based twin sample from the Australian Twin Registry (1567 pairs and 634 singles aged 17-29 years) was screened to identify twin pairs in which one or both members reported themselves to be affected by stuttering. Telephone interview-based diagnoses were obtained for 457 of these individuals (self-reported affected cases, cotwins, and controls) to determine whether the self-report was correct. To correct for ascertainment bias we carried out a bivariate analysis of the final diagnosis in the selected sample with the screening item in the full sample, using the categorical raw data option of Mx 1.47c. After correcting for ascertainment bias, approximately 70% (95% confidence interval: 39-86%) of the variance in liability to stuttering was found to be attributable to additive genetic effects, with the remainder due to nonshared environmental effects. Plenum Publishing Corporation, 2000 Twins nationallicence stuttering nationallicence speech disorders nationallicence bivariate analysis nationallicence ascertainment bias nationallicence Felsenfeld S. aut Kirk K. aut Zhu G. aut Statham D. aut Neale M. aut Martin N. aut Behavior Genetics Kluwer Academic Publishers-Plenum Publishers 30/5(2000-09-01), 359-366 0001-8244 30:5<359 2000 30 10519 https://doi.org/10.1023/A:1002765620208 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002765620208 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Felsenfeld S. aut NATIONALLICENCE 700 1- Kirk K. aut NATIONALLICENCE 700 1- Zhu G. aut NATIONALLICENCE 700 1- Statham D. aut NATIONALLICENCE 700 1- Neale M. aut NATIONALLICENCE 700 1- Martin N. aut NATIONALLICENCE 773 0- Behavior Genetics Kluwer Academic Publishers-Plenum Publishers 30/5(2000-09-01), 359-366 0001-8244 30:5<359 2000 30 10519 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer