A large database of a wide range of age groups from teens to 90s, which serves as a standard for comparing the ability to hear sounds and hearing, has been created by groups such as the National Hospital Organization Tokyo Medical Center based on 20 years of test data worldwide. I made it for the first time.
By establishing criteria, it is possible to know whether or not the hearing loss of the elderly is age-appropriate, which is useful for accurate diagnosis.
The database was compiled based on data from more than 10,000 people without ear disease who underwent hearing tests for 20 years until 2020 by the Tokyo Medical Center of the National Hospital Organization and a group of Keio University.
It shows the average hearing by frequency from low to high, by age group from teens to 90s, and by gender, and it is said that it is the first time in the world that such a large database has been created. ..
In addition, when compared every 10 years, it was found that the hearing ability of high-pitched sounds of 4000 Hz was reduced in the 40s and younger, and it is the frequency most susceptible to continuous noise, so it is large for earphones etc. I suspect it is the effect of listening to the sound.
The research group said that having a database of average hearing by age group would be useful for diagnosing whether or not hearing loss in the elderly is age-appropriate. Whether or not to wear a hearing aid has been greatly influenced by subjective symptoms, but it will be possible to make an accurate judgment. "