Genetic epidemiology of stuttering among school children in the state of Tamil Nadu, India

Conclusion: The prevalence of stuttering in Tamil Nadu is estimated for the first time in this study. High familial incidence, familial aggregation and sibling recurrence risk ratio point to the presence of a genetic basis. Familial aggregation was high among consanguineous families although consanguinity did not seem to play a role in severity. (Source: Journal of Fluency Disorders)

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