Abstract
A correlation between vocal abuse and subsequent voice disorders has been documented in the literature, but quantitative analysis of this problem has not received much attention. Although occupation is thought to influence vocal use, the relationship between occupation and vocal dysfunction is not well known. In order to understand this relationship, questionnaires concerning the extent and duration of vocal use during their working hours and their vocal problems were given to subjects with three different occupations : nursery school teacher, hospital nurse and radio or TV announcer. Speaking time was also measured by speech accumulator in some subjects. The nursery school teachers spoke twice as much as and experienced vocal dysfunction five times more than the hospital nurses. They were forced to use their voice loudly for many hours subjectively and objectively when compared to the individuals with other occupations. Voice disorders also occurred frequently and earlier depending on the extent of vocal abuse. The degree of concern about vocal problems by the individuals questioned was very different depending on their occupation, being especially high in radio and TV announcers.
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