Main Article Content
A self-controlled intervention study was conducted on a group of hearing loss children who wear hearing aids at the National Children Hospital January 2018 to August 2019. The purpose of the study is to evaluate the effectiveness of the hearing aid on these children. Data were taken by questionnaires and analyzed using Stata software. The results showed that the average improvement of the hearing threshold in 71 hearing loss ears after wearing hearing aids was 49.2 ± 9.5dB. In which improvement at frequency 500 Hz is 47.5 ± 10.9dB; frequency 1000 Hz is 49.9 ± 10.5dB; frequency 2000 Hz is 50.2 ± 10.1dB; frequency 4000 Hz is 47.9 ± 10.2dB. The SII index improve 38.5 ± 27.4%. The Maximum word comprehension improve 60.9 ± 38.5%. The Maximum sentence comprehension improve 73 ± 34.2.
Hearing aid, SII index, Maximum word comprehension, Maximum sentency comprehension
 Cox RM, Alexander GC, Gray GA, Personality, hearing problems, and amplification characteristics: Contributions to self-report hearing aid outcomes, Ear and Hearing, 2007; 28: 141–162.
 Cox RM, Stephens D, Kramer S, Translations of the international outcome inventory for hearing aids (IOI-HA), International Journal of Audiology, 2002; 41: 3–26
 Füllgrabe C, Rosen S, On the (un)importance of working memory in speech-in-noise processing for listeners with normal hearing, Frontiers in Psychology, 2016; 7: 1268.
 Gatehouse S, Akeroyd M, Two-eared listening in dynamic situations, International Journal of Audiology, 2006; 45: S120–S124.
 Jane RM, Carol F, Jace W et al., Pediatri Audiology 3th, Thieme, NewYork, 2019.
 Keidser G, O’Brien A, Carter L et al., Variation in preferred gain with experience for hearing aid users, International Journal of Audiology, 2008; 47: 621–635
 Northern LJ, Downs MP, Hearing in children eth 4, Plural Publishing, San Diego, 1991.
 Simon HJ, Bilateral amplication and sound localization:then and now, Journal of Rehabilitation Research and Development, 2005; 42: 117-132.
 Van der PK, Snik A, Cremers C, Audiometric results of bilateral bone-anchlored hearing aid application in patients with bilateral congenital aural atresia, Laryngoscope, 1998; 108(4): 548-553