High-frequency profile in adolescents and its relationship with the use of personal stereo devices

Silvestre, Renata Almeida Araújo; Ribas, Ângela; Hammerschmidt, Rogério; Lacerda, Adriana Bender Moreira de

doi:10.1016/j.jped.2015.07.008

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Original articles • J. Pediatr. (Rio J.) 92 (2) • Mar-Apr 2016 • https://doi.org/10.1016/j.jped.2015.07.008 copy

High-frequency profile in adolescents and its relationship with the use of personal stereo devices^☆ ☆ Please cite this article as: Silvestre RA, Ribas Â, Hammerschmidt R, de Lacerda AB. High-frequency profile in adolescents and its relationship with the use of personal stereo devices. J Pediatr (Rio J). 2016;92:206-11. ^☆☆ ☆☆ This article was written as part of the thesis of the main author for a Master's degree.

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Objective:

To analyze and correlate the audiometric findings of high frequencies (9–16 kHz) in adolescents with their hearing habits and attitudes, in order to prevent noise-induced hearing loss.

Method:

This was a descriptive cross-sectional study, which included 125 adolescents in a sample of normal-hearing students, at a state school. The subjects performed high-frequency audiometry testing and answered a self-administered questionnaire addressing information on sound habits concerning the use of personal stereo devices. The sample was divided according to the exposure characteristics (time, duration, intensity, etc.) and the results were compared with the observed thresholds, through the difference in proportions test, chi-squared, Student's t-test, and ANOVA, all at a significance level of 0.05.

Results:

Average high-frequency thresholds were registered below 15 dB HL and no significant correlation was found between high frequency audiometric findings and the degree of exposure.

Conclusion:

The prevalence of harmful sound habits due to the use of personal stereo devices is high in the adolescent population, but there was no correlation between exposure to high sound pressure levels through personal stereos and the high-frequency thresholds in this population.

Keywords
Audiometry; Adolescent; MP3 player; Hearing loss; Primary prevention

Age	Female (n = 63)		Male (n = 62)		p
	n	%	n	%
12	2	3.17	2	3.23	0.9848
13	13	20.63	7	11.29	0.1569
14	17	26.98	12	19.35	0.3142
15	14	22.22	24	38.71	0.0473^a a p < 0.05.
16	11	17.46	11	17.74	0.9673
17	6	9.52	6	9.68	0.9758

Total	63	50.04	62	49.60	–

PS exposure time	Female (n = 63)		Male (n = 62)		p
	n	%	n	%
Less than 3 years	32	50.79	43	69.35	0.0342^a a p < 0.05.
3 years or more	31	49.21	19	30.65

Up to 4 days/week	11	17.46	20	32.26	0.0054^a a p < 0.05.
5 or more days/week	52	82.54	42	67.74

Less than 2 hours/day	30	47.62	41	66.13	0.0367^a a p < 0.05.
2 or more hours/day	33	52.38	21	33.87

Freq. (kHz)	Age group	Descriptive statistics						p
		n	Mean (dB HL)	Median	Min	Max	SD
9	12–14	53	9.87	10.0	−10.0	40.0	8.0	0.2790
	15–17	72	10.6	10.0	−10.0	25.0	5.9

11.2	12–14	53	11.5	10.0	−10.0	55.0	10.0	0.5262
	15–17	72	11.4	10.0	−5.0	30.0	7.0

12.5	12–14	53	7.07	5.0	−15.0	55.0	10.9	0.0812
	15–17	72	9.47	10.0	−10.0	30.0	8.2

14	12–14	53	4.65	5.0	−20.0	50.0	12.9	0.0244 ^a a p < 0.05.
	15–17	72	8.67	10.0	−20.0	30.0	9.7

16	12–14	53	5.82	5.0	−20.0	45.0	14.6	0.0962
	15–17	72	9.07	10.0	−20.0	40.0	13.0

PS usage characteristics	Length of use		p
	Less than 3 years	3 years or more
Up to 4 days/week	27	4	0.0004^a a p < 0.05.
5 or more days/week	48	46

Less than 2 hours/day	52	19	0.0005^a a p < 0.05.
2 or more hours/day	23	31

Volume level 1–5	21	13	0.8055
Volume level 6–10	54	37

Sociedade Brasileira de Pediatria Av. Carlos Gomes, 328 cj. 304, 90480-000 Porto Alegre RS Brazil, Tel.: +55 51 3328-9520 - Porto Alegre - RS - Brazil
E-mail: jped@jped.com.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] *Corresponding author. E-mail:renatasaa@hotmail.com (R.A.A. Silvestre).