Fig. 5From: X-linked Alport syndrome: pathogenic variant features and further auditory genotype-phenotype correlations in malesRelationship between PTA’, age, mutation type and change of amino acid. X-axis represents age and the Y-axis represents PTA’; a Indels, splicing and nonsense mutations (n = 31); b Replacement of glycine in missense mutations (n = 24); and c Replacement of non-glycine in missense mutations (n = 7)Back to article page