title: Screening of delayed-onset hearing loss in preschool children in the mid-south of China.
abstract: OBJECTIVE
  Newborn hearing screening has been successfully implemented worldwide to improve the detection of hearing loss. However, delayed-onset hearing loss subsequent to newborn hearing screening remains a concern. This study aimed to investigate the prevalence of delayed-onset hearing loss in preschool children who previously passed newborn hearing screening in Hubei Province in mid-south China.
  
  
  METHODS
  Preschool children were screened by transient evoked otoacoustic emission (TEOAE) for delayed-onset hearing loss. Children referred after the TEOAE screening were assessed audiologically.
  
  
  METHODS
  Between March 2010 and September 2011, 28 546 preschool children (4.86 ± 1.67 years old), who had passed newborn hearing screening were targeted for screening from four cities in Hubei Province, China.
  
  
  RESULTS
  During the study period, 540 children (1.89%) were referred for audiologic assessment and 22 (0.77/1000) of them had permanent delayed-onset hearing loss, including 8 (0.28/1000) with bilateral moderate hearing loss, 10 (0.35/1000) with mild bilateral hearing loss, 2 (0.07/1000) with unilateral moderate hearing loss, and 2 (0.07/1000) with unilateral mild hearing loss.
  
  
  CONCLUSIONS
  Despite the success of newborn hearing screening, the provision of hearing screening in preschool remains essential for identifying delayed-onset hearing loss.
authors.affiliation: Department of Otolaryngology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.
authors.forename: Guanming
authors.initials: G
authors.lastname: Chen
authors.forename: Siqing
authors.initials: S
authors.lastname: Fu
authors.forename: Shaojun
authors.initials: S
authors.lastname: Luo
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.forename: Guoqiang
authors.initials: G
authors.lastname: Yang
mesh_terms: D017668:Age of Onset; D001301:Audiometry, Pure-Tone; D002648:Child; D002662:Child Health Services; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005260:Female; D006309:Hearing; D034381:Hearing Loss / Q000175:diagnosis* / Q000453:epidemiology / Q000503:physiopathology; D006312:Hearing Loss, Bilateral / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology; D046088:Hearing Loss, Unilateral / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology; D006320:Hearing Tests; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods*; D017084:Otoacoustic Emissions, Spontaneous; D038781:Otoscopy; D011237:Predictive Value of Tests; D015995:Prevalence; D012720:Severity of Illness Index