Voice symptoms of call-centre customer service advisers experienced during a work-day and effects of a short vocal training course

References

• Fritzell B. Voice disorders and occupations. Log Phon Vocol. 1996;21:7–12.
   Google Scholar
• Jo´ nsdo´ ttir V. Cordless amplifying system in classrooms. A descriptive study of teachers’ and students’ opinions. Log Phon Vocol. 2002;27:29–36.
   Google Scholar
• Jones K, Sigmon J, Hock L, Nelson E. Prevalence and risk factors for voice problems among telemarketers. Arch Otolaryngol Head Neck Surg. 2002;128:571–7.
   PubMedGoogle Scholar
• Koufman J, Blalock P. Vocal fatigue and dysphonia in the professional voice users: Bogart-Bacall-syndrome. Laryngoscope. 1998;93(suppl.5):493-8.
   Google Scholar
• Mattiske J, Oates J, Greenwood K. Vocal problems among teachers: A review of prevalence, causes, prevention and treatment. J Voice. 1998;12(4):489–99.
   PubMed Web of Science ®Google Scholar
• Morton V, Watson DR. The teaching voice: problems and perceptions. Log Phon Vocol. 1998;23:133–9.
   Google Scholar
• Newman C, Kersner M. Voice problems of aerobics instructors: implications for preventive training. Log Phon Vocol. 1998;23:177–80.
   Google Scholar
• Sala E, Laine A, Simberg S, Pentti J, Suonpa¨a¨ J. The prevalence of voice disorders among day care center teachers compared with nurses: A questionnaire and clinical study. J Voice. 2001;15(3):413–23.
   PubMed Web of Science ®Google Scholar
• Sapir S, Atias J, Sharhar A. Symptoms of vocal attrition in women army instructors and recruits: results from a survey. Laryngoscope. 1990;100:991–4.
   PubMed Web of Science ®Google Scholar
• Scherer R, Titze I, Raphael B, Wood R, Ramig L, Blager R. Vocal fatigue in a trained and an untrained voice user. In: Bear T, Sasakei C, Harris K, editors. Laryngeal Function in Phonation and Respiration. A College-Hill Publication. Boston/Toronto/San Diego: Little, Brown and Company; 1987. p. 533–53.
   Google Scholar
• Simberg S, Laine A, Sala E, Ro¨ nnemaa A-M. Prevalence of voice teachers among future teachers. J Voice. 2000;14(2): 231–5.
   Google Scholar
• Smith E, Lemke J, Taylor M, Kirchner HL, Hoffman H. Frequency of voice problems among teachers and other occupations. J Voice. 1998;12(4):480–8.
   PubMed Web of Science ®Google Scholar
• Titze IR, Lemke J, Montequin D. Populations in the U. S. workforce who rely on voice as a primary tool of trade: A preliminary report. J Voice. 1997;11:245–59.
   Google Scholar
• Ma EP-M, Yiu EM-L. Voice activity and participation profile: assessing the impact of voice disorders on daily activities. J Speech Lang Hear Res. 2001;44:511–24.
   PubMed Web of Science ®Google Scholar
• Verdolini K, Ramig LO. Review: Occupational risks for voice problems. Log Phon Vocol. 2001;26:37–46.
   PubMedGoogle Scholar
• International Classification of Impairment, Disability and Handicap. Geneva: World Health Organization; 1980.
   Google Scholar
• Dekker J. Application of the ICIDH in survey research on rehabilitation: The emergence of the functional diagnosis. Disabil Rehabil. 1995;17:195–201.
   PubMed Web of Science ®Google Scholar
• International Classification of Impairment, Disability and Handicap. Geneva: World Health Organization; 2001.
   Google Scholar
• Russel A, Oates J, Greenwood K. Prevalence of voice problems in teachers. J Voice. 1998;12(4):467–79.
   PubMedGoogle Scholar
• Ramig LO, Verdolini K. Treatments efficacy: Voice disorders. J Speech Lang Hear Res. 1998;41:S101–16.
   PubMed Web of Science ®Google Scholar
• Vilkman E. Occupational risk factors and voice disorders. Log Phon Vocol. 1996;21:137–41.
   PubMedGoogle Scholar
• Vilkman E. A survey on the occupational safety and health arrangements for voice and speech professionals in Europe. In: Dejonckere PH, editor. Occupational voice *care and cure, 1-9. The Hague, The Netherlands: Kugler Publications; 2000.
   Google Scholar
• Ohlsson A-C, Lo¨ fqvist A. Work-day effects on vocal behaviour in switchboard operators and speech therapists. Scand J Log Phon. 1987;12:70–9.
   Google Scholar
• Council Directive: On the introduction measures to encourage improvements in the safety and health of workers at work. 89/391/EEC. Brussels: European Economic Community; 1989.
   Google Scholar
• Gotaas C, Starr CG. Vocal fatigue among teachers. Folia Phoniatr. 1993;45:120–9.
   PubMed Web of Science ®Google Scholar
• Pekkarinen E, Himberg L, Pentti J. Prevalence of vocal symptoms among teachers compared with nurses: A questionnaire study. Scand J Log Phon. 1992;17:113–7.
   Google Scholar
• Rantala L. Voice at work. Female teachers’ use and loading of voice. [In Finnish]. Dissertation. Acta Universitatis Ouluensis. Humaniora. B 37. Oulu: University of Oulu; 2000.
   Google Scholar
• Sapir S, Keidar A, Mathers-Schmidt B. Vocal attrition in teachers: survey findings. Eur J Disord Commun. 1993;28:177–85.
   PubMedGoogle Scholar
• Smith E, Gray S, Dove H, Kirchner L, Heras H. Frequency and effects of teachers’ voice problems. J Voice. 1997;11(1): 81–7.
   PubMedGoogle Scholar
• Smith E, Kirchner HL, Taylor M, Hoffman H, Lemke J. Voice problems among teachers: Differences by gender and teaching characteristics. J Voice. 1998;12(3):328–34.
   PubMed Web of Science ®Google Scholar
• So¨ dersten M, Granqvist S, Hammarberg B, Szabo A. Vocal behaviour and vocal loading factors for pre-school teachers at work studied with binaural DAT recordings. J Voice. 2002; 16(3):356–71.
   Google Scholar
• Lehto L, Rantala L, Vilkman E, Alku P, Ba¨ckstro¨ m T. Experiences of a short vocal training course for call-centre customer service advisors. Folia Phoniatr. 2003;55:163–76.
   Google Scholar
• Richter B, Lo¨ hle E, Maier W, Klieman B, Verdolini K. Working conditions on stage: climatic considerations. Log Phon Vocol. 2000;25(2):80–6.
   Google Scholar
• Verdolini-Marston K, Sandage M, Titze I. Effects of hydration treatments on laryngeal nodules and polyps and related voice measures. J Voice. 1994;8(1):30–47.
   PubMedGoogle Scholar
• Verdolini K, Titze IR, Fenell A. Dependence of phonatory effort on hydration level. J Speech Hear Res. 1994;37:1001–7.
   PubMedGoogle Scholar
• Vintturi J. Studies on voice production. With special emphasis on vocal loading, gender, some explosure factors and intensity regulations. Dissertation. Helsinki: The Medical faculty of the University of Helsinki; 2001.
   Google Scholar
• Lemiere C, Desjardins A, Cloutier Y, Drolet D, Perrault G, Cartier A, et al. Occupational asthma due to formaldehyde resin dust with and without reaction to formaldehyde gas. Eur Resp J. 1995;8(5):861–5.
   PubMed Web of Science ®Google Scholar
• Dejonckere P, Lebacq J. Acoustic, Perceptual, aerodynamic and anatomical correlations in voice pathology. Otol Rhinol Laryngol. 1996;58:326–32.
   Google Scholar
• Gould D, Kelly D, Goldstone L, Gammon J. Examining the validity of pressure ulcer risk assessment scales: developing and using illustrated patient simulations to collect the data. J Clinical Nursing. 2001;10:697–706.
   PubMed Web of Science ®Google Scholar
• Carding P, Horsley I. An evaluation study of voice therapy in non-organic dysphonia. Eur J Dis Comm. 1992;27:137–58.
   PubMedGoogle Scholar
• Martin S, Darnley L. The Teaching Voice. London: Whurr Publishers Ltd; 1996.
   Google Scholar
• Coyle S, Weinrich B, Stemple J. Shifts in relative prevalence of laryngeal pathology in a treatment-seeking population. J Voice. 2001;15(3):424–40.
   PubMed Web of Science ®Google Scholar
• Vilkman E. Voice problems at work: A challenge for occupational safety and health arrangement. Folia Phoniatr. 2000; 52:120–5.
   Google Scholar
• Rantala L, Vilkman E. Relationship between subjective voice complaints and acoustic parameters in female teachers’ voice. J Voice. 1999;13:484–95.
   PubMed Web of Science ®Google Scholar
• Yiu E, Chan R. Effect of hydration and vocal rest on the vocal fatigue in amateur karaoke singers. J Voice. 2003;17(2):216–27.
   PubMed Web of Science ®Google Scholar
• Titze I. Toward occupational safety criteria for vocalization. Log Phon Vocol. 1999;24:49–54.
   Google Scholar
• Sapir S. Vocal attrition in voice students: Survey findings. J Voice. 1993;7(1):69–74.
   PubMed Web of Science ®Google Scholar
• Scott S, Robinson K, Wilson JA, Mackenzie K. Patientreported problems associated with dysphonia. Clin Otolaryngol. 1997;22:37–40.
   PubMed Web of Science ®Google Scholar
• Broaddus-Lawrence PL, Treole K, McCabe RB, Allen RL, Toppin L. The effects of preventive vocal hygiene education on the vocal hygiene habits and perceptual vocal characteristics of training singers. J Voice. 2000;14(1):58–71.
   PubMedGoogle Scholar
• Carding P, Horsley I, Docherty G. A study of the effectiveness of voice therapy in the treatment of 45 patients with nonorganic dysphonia. J Voice. 1999;13(1):72–104.
   PubMed Web of Science ®Google Scholar
• Chan R. Does the voice improve with vocal hygiene education? A study of some instrumental voice measures in a group of kindergarten teachers. J Voice. 1994;8:279–91.
   PubMed Web of Science ®Google Scholar
• Peppard RC, Bless DM, Milenkovic P. Comparison of young adult singers and nonsingers with vocal nodules. J Voice. 1988;2:250–60.
   Google Scholar
• Roy N, Weinrich B, Gray S, Tanner K, Stemple J, Sapienza C. Three treatments for teachers with voice disorders: a randomized clinical trial. J Speech Lang Hear Res. 2003;46:670 88.
   Google Scholar
• Herrington-Hall B, Lee L, Stemple J, Niemi K, Miller McHone M. Description of laryngeal pathologies by age, sex, and occupation in a treatment-seeking sample. J Speech Hear Disord. 1988;53:57–64.
   PubMedGoogle Scholar
• MacKenzie K, Millar A, Wilson J, Sellars C, Deary I. Is voice therapy an effective treatment for dysphonia? A randomised controlled trial. BMJ. 2001;323:658–61.
   PubMed Web of Science ®Google Scholar
• Roy N, Gray S, Simon M, Dove H, Corbin-Lewis K, Stemple J. An evaluation of the effects of two treatment approaches for teachers with voice disorders: A prospective randomized clinical trial. J Speech Lang Hear Res. 2001;44:286–96.
   PubMed Web of Science ®Google Scholar
• Raaijmakers M, Dekker J, Dejonckere P. Diagnostic assessment and treatment goals in logopedics: Impairments, disabilities and handicaps. Folia Phoniatr. 1998;50:71–9.
   Google Scholar
• Pannbacker M. Voice treatment techniques: A review and recommendations for outcome studies. Am J Speech Lang Pathol. 1998;7:49–64.
   Web of Science ®Google Scholar