A cross sectional study on the vocal handicap index applied to a sample of teachers in nurseries and primary school.

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Autor/Urheber	Lia, L; De Francesco, S; Mannocci, A; Di Nucci, V; La Torre, G
Titel	A cross sectional study on the vocal handicap index applied to a sample of teachers in nurseries and primary school.
Quelle	In: doi:10.7416/ai.2019.2285; 2-s2.0-85065766808(2019) PDF als Volltext kostenfreie Datei
Sprache	englisch
Dokumenttyp	online; Zeitschriftenaufsatz
DOI	10.7416/ai.2019.2285
Schlagwörter	noise; school; teachers; vocal impairment
Abstract	BACKGROUND: Acoustic pollution is generally analysed in relation to the risks for the hearing apparatus, omitting the extra-auditory effects, such as the damage that the noise can cause to the speaker's voice and listening to the learning of the vocal message. These damages are mainly found in school environments among teachers. OBJECTIVE: A cross-sectional study was carried out to verify the influence that the noise of the classrooms can have on the physical and mental health of the teachers examined. METHODS: This study involved four schools of Rome, for a total of 60 teachers, who were interviewed via online questionnaires, which consisted of a socio-demographic data section and 3 other sections: Vocal Handicap Index (VHI), SF-12, Job Content Questionnaire. RESULTS: 50 responses were received. 68% of teachers exceeded the normative value of 2.83 and perceived a disorder of the voice, and only 32% had a value lower than the standard considered (mean=7.34; median=5). The medians of MCS12 and PCS12 scores (52.9 and 54.2) were very close to those of the general population, as well as the distribution of the scores obtained from the Job Content Questionnaire. Furthermore, there was a direct association between the VHI-10 score and the age (B=0.321 p=0.016), the marital status (B=0.345 p= 0.009), and an indirect association with the MCS12 (B=-0.283 p=0.033). CONCLUSIONS: In general, the teachers examined are exposed in the classrooms to a high acoustic climate (median=75 dB) and, consequently, to a vocal effort during the didactic activities. Although it has not been possible to verify whether teachers with a high vocal disturbance were in the classrooms with a worse acoustic climate, the descriptive analyses provide a solid basis for further studies on the association between noise pollution and vocal effort.
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