Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Pure tone averages (PTA) of hearing thresholds at 500, 1000, 2000 and 4000 Hz, for the better hearing ears in affected members with homozygous mutations in SLC26A4 are plotted as a function of age of the participants. The degree of hearing loss is different across and within families with mutations in SLC26A4 without correlation to age, an observation which is supported by the straight regression line in the graph.
