title: Application of the online hearing screening test "Earcheck": Speech intelligibility in noise in teenagers and young adults.
abstract: OBJECTIVE
  The objective was to describe the speech intelligibility in noise test results among Dutch teenagers and young adults aged 12-24 years, using a national online speech reception threshold (SRT) test, the Earcheck. A secondary objective was to assess the effect of age and gender on speech intelligibility in noise.
  
  
  METHODS
  Cross-sectional SRT data were collected over a 5-year period (2010-2014), from participants of Earcheck. Regression analyses were performed, with SRT as the dependent variable, and age and gender as explaining variables. To cross-validate the model, data from 12- to 24-year olds from the same test distributed by a hearing aid dispenser (Hoorscan) were used.
  
  
  RESULTS
  In total, 96,803 valid test results were analyzed. The mean SRT score was -18.3 dB signal-to-noise ratio (SNR) (standard deviation (SD) = 3.7). Twenty-five percent of the scores was rated as insufficient or poor. SRT performance significantly improved with increasing age for teenagers aged 12-18 years by 0.49 dB SNR per age-year. A smaller age-effect (0.09 dB SNR per age-year) was found for young adults aged 19-24 years. Small differences between male and female users were found.
  
  
  CONCLUSIONS
  Earcheck generated large quantities of national SRT data. The data implied that a substantial number of users of Earcheck may have some difficulty in understanding speech in noise. Furthermore, the results of this study showed an effect of gender and age on SRT performance, suggesting an ongoing maturation of speech-in-noise performance into late adolescence. This suggests the use of age-dependent reference values, but for this purpose, more research is required.
authors.affiliation: Clinical and Experimental Audiology, ENT Department, Academic Medical Center (AMC) Amsterdam, The Netherlands.
authors.forename: Marya Sheikh
authors.initials: MS
authors.lastname: Rashid
authors.affiliation: Clinical and Experimental Audiology, ENT Department, Academic Medical Center (AMC) Amsterdam, The Netherlands.
authors.forename: Monique C J
authors.initials: MC
authors.lastname: Leensen
authors.affiliation: Clinical and Experimental Audiology, ENT Department, Academic Medical Center (AMC) Amsterdam, The Netherlands.
authors.forename: Wouter A
authors.initials: WA
authors.lastname: Dreschler
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006317:Hearing Loss, Noise-Induced / Q000175:diagnosis*; D006801:Humans; D020407:Internet; D008297:Male; D009622:Noise; D012737:Sex Factors; D013067:Speech Perception / Q000502:physiology*; D013069:Speech Reception Threshold Test; D055815:Young Adult