Prevalence of clinical referrals having hearing thresholds within normal limits
Conclusions: The prevalence of normal cases was 5.1% among the children and 0.9% among all adults. For younger adults (17–60 years, n = 1025), the prevalence was 4.0%. Based on comparison with those referred with hearing loss, we estimate the prevalence of APD among children and adults, defined as listening problems despite normal audiometry, to be about 0.5–1.0% of the general population.
href=”http://informahealthcare.com/doi/abs/10.3109/14992027.2011.582049″>International Journal of Audiology