High-frequency profile in adolescents and its relationship with the use of personal stereo devices
Journal Title: Jornal de Pediatria - Year 2016, Vol 92, Issue 2
Abstract
Objective To analyze and correlate the audiometric findings of high frequencies (9–16kHz) 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 15dB 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.
Authors and Affiliations
Renata Silvestre
Early treatment improves urodynamic prognosis in neurogenic voiding dysfunction: 20 years of experience
Objective To evaluate the association between early treatment and urodynamic improvement in pediatric and adolescent patients with neurogenic bladder. Methodology Retrospective longitudinal and observational study (betw...
The importance of understanding hospital and country-specific case-mix for neonatal patients
The study by Grandi et al. provides important information about the prevalence and impact of maternal diabetes mellitus on the outcomes of very low birth weight infants in South American neonatal intensive care units (NI...
Hospital-based surveillance of intussusception among infants
Objective Intussusception surveillance was initiated after the nationwide introduction of live attenuated monovalent rotavirus vaccine (RV1). The objective is to assess the epidemiology of intussusception and compare the...
Predictive capacity of anthropometric indicators for dyslipidemia screening in children and adolescents
Objective To analyze the predictive capacity of anthropometric indicators and their cut-off values for dyslipidemia screening in children and adolescents. Methods This was a cross-sectional study involving 1139 children...
Age at menarche in schoolgirls with and without excess weight
Objective To evaluate the age at menarche of girls, with or without weight excess, attending private and public schools in a city in Southeastern Brazil. Methods This was a cross-sectional study comparing the age at men...