P. Janssen et al., GENETIC-FACTORS IN STUTTERING - A REPLICATION OF AMBROSE, YAIRI, AND COX (1993) STUDY WITH ADULT PROBANDS, Journal of fluency disorders, 21(2), 1996, pp. 105-108
The relationship between the gender of stuttering probands and the inc
idence of stuttering among their relatives was investigated by obtaini
ng detailed pedigrees from 106 adult stutterers. We found, as Ambrose,
Yairi, and Cox (1993) did in a study of preschool probands, that no e
vidence existed for the contention that relatives of female probands a
re more likely to stutter than those of male probands.