Skip to main content

Table 1 HI of different level

From: Ear diseases among secondary school students in Xi'an, China: The role of portable audio device use, insomnia and academic stress

Ear diseases Number Percentage(%)
Mild (26 - 4 dB) 23 1.47
External auditory canal stenosis 1  
Active stage of chronic suppurative otitis media 3  
Secretory otitis media 1  
Tympanic membrane perforation (dry ear) 1  
Tympanosclerosis 1  
Hereditary 3  
Noise-induced 12  
Unknown 1  
Moderate (41 - 60 dB) 4 0.26
Tympanosclerosis 1  
Hereditary 1  
Noise-induced 2  
Severe (61 - 80 dB) 2 0.13
Drug-induced 1  
Unknown 1  
Profound (> 80 dB) 1 0.06
Unknown 1