Noise Health Close
 

Figure 1. Pure-tone average of HTL at 3, 4 and 6 kHz for male subjects aged from 20 to 79 years. Each curve represents one percentile from the 10th to 90th percentile of the distribution. The thick curve in the middle represents the median curve.

Figure 1. Pure-tone average of HTL at 3, 4 and 6 kHz for male subjects aged from 20 to 79 years. Each curve represents one percentile from the 10th to 90th percentile of the distribution. The thick curve in the middle represents the median curve.