The 6 kHz acoustic dip in school-aged children in Finland

Journal/Book: Eur Arch Oto-Rhino-Laryngol. 1995; 252: 175 Fifth Ave, New York, NY 10010. Springer Verlag. 391-394.

Abstract: In the present study, pure-tone audiometry was used in 687 Finnish school children, aged 6-15 years, to determine the prevalence of a 6 kHz acoustic dip and related factors among three age groups. Trained audiometricians tested air conduction thresholds in a sound-proof room. A total of 57 children (8.3%) had a clear-cut dip of at least 20 dB at 6 kHz. This dip was more pronounced in older children and in boys. A thorough case history was obtained by questionnaire, with logistic regression analysis showing that low birth weight (< 2500 g) and childhood measles were the only factors associated with occurrence of the 6 kHz dip in school-aged children.

Note: Article J Haapaniemi, Ilveksenkatu 10, SF-20760 Piispanristi, Finland

Keyword(s): hearing loss; epidemiology; audiometry; schoolchildren; HEARING-LOSS; NOISE

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