Inadequate vocal hygiene habits associated with the presence of self-reported voice symptoms in telemarketers

References

• Vilkman E. Voice problems at work: a challenge for occupational safety and health arrangement. Folia Phoniatr Logop 2000; 52:120–5.
   PubMed Web of Science ®Google Scholar
• Jones K, Sigmon J, Hock L, et al. Prevalence and risk factors for voice problems among telemarketers. Arch Otolaryngol Head Neck Surg 2002;128:571–7.
   PubMedGoogle Scholar
• Verdolini K, Ramig LO. Review: occupational risks for voice problems. Logoped Phoniatr Vocol 2001;26:37–46.
   PubMedGoogle Scholar
• Hazlett DE, Duffy OM, Moorhead SA. Review of the impact of voice training on the vocal quality of professional voice users: implications for vocal health and recommendations for further research. J Voice 2011;25:181–91.
   PubMed Web of Science ®Google Scholar
• Fritzell B. Voice disorders and occupations. Logoped Phoniatr Vocol 1996;21:7–12.
   Google Scholar
• Russell A, Oates J, Greenwood KM. Prevalence of voice problems in teachers. J Voice 1998;12:467–79.
   PubMed Web of Science ®Google Scholar
• Sapir S. Vocal attrition in voice students: survey findings. J Voice 1993;7:69–74.
   PubMed Web of Science ®Google Scholar
• Miller MK, Verdolini K. Frequency and risk factors for voice problems in teachers of singing and control subjects. J Voice 1995;9:348–62.
   PubMed Web of Science ®Google Scholar
• Sapir S, Mathers-Schmidt B, Larson GW. Singers’ and non-singers’ vocal health, vocal behaviours, and attitudes towards voice and singing: indirect findings from a questionnaire. Eur J Disord Commun 1996;31:193–209.
   PubMedGoogle Scholar
• O'Neill J, McMenamin R. Voice use in professional soccer management. Logoped Phoniatr Vocol 2014;39:169–78.
   PubMed Web of Science ®Google Scholar
• Titze IR, Lemke J, Montequin D. Populations in the US workforce who rely on voice as a primary tool of trade: a preliminary report. J Voice 1997;11:254–9.
   PubMed Web of Science ®Google Scholar
• Przysiezny PE, Przysiezny LT. Work-related voice disorder. Braz J Otorhinolaryngol 2015;81:202–11.
   PubMed Web of Science ®Google Scholar
• Carding P, Wade A. Managing dysphonia caused by misuse and overuse. BMJ 2000;321:1544–5.
   PubMedGoogle Scholar
• Behlau M, Oliveira G. Vocal hygiene for the voice professional. Curr Opin Otolaryngol Head Neck Surg 2009;17:149–54.
   PubMed Web of Science ®Google Scholar
• Ohlsson AC, Löfqvist A. Work-day effects on vocal behaviour in switchboard operators and speech therapists. Scand J Log Phon 1987;12:70–9.
   Google Scholar
• Lehto L, Laaksonen L, Vilkman E, Alku P. Changes in objective acoustic measurements and subjective voice complaints in call center customer-service advisors during one working day. J Voice 2008;22:164–77.
   PubMed Web of Science ®Google Scholar
• Gavhed D, Toomingas A. Observed physical working conditions in a sample of call centres in Sweden and their relations to directives, recommendations and operators’ comfort and symptoms. Int J Ind Ergon 2007;37:790–800.
   Web of Science ®Google Scholar
• Rechenberg L, Goulart BN, Roithmann R. Impact of call center work in subjective voice symptoms and complaints – an analytic study. J Soc Bras Fonoaudiol 2011;23:301–7.
   PubMedGoogle Scholar
• Lehto L, Rantala L, Vilkman E, et al. Experiences of a short vocal training course for call-centre customer service advisors. Folia Phoniatr Logop 2003;55:163–76.
   PubMed Web of Science ®Google Scholar
• Lehto L, Laaksonen L, Vilkman E, Alku P. Occupational voice complaints and objective acoustic measurements – do they correlate? Logoped Phoniatr Vocol 2006;31:147–52.
   PubMedGoogle Scholar
• Charbotel B, Croidieu S, Vohito M, et al. Working conditions in call-centers, the impact on employee health: a transversal study. Part II. Int Arch Occup Environ Health 2009;82:747–56.
   PubMed Web of Science ®Google Scholar
• Ferreira LP, Akutsu CM, Luciano P, Viviano NAG. Vocal production condition of telemarketing operators: correlation between heath issues and vocal habits and symptoms. Rev Soc Bras Fonoaudiol 2008;13:307–15.
   Google Scholar
• Piwowarczyk TC, Oliveira G, Lourenço L, Behlau M. Vocal symptoms, voice activity, and participation profile and professional performance of call center operators. J Voice 2012;26:194–200.
   PubMed Web of Science ®Google Scholar
• Asha. 2017. Voice Disorders. Signs and Symptoms. Retrieved June 20, 2017: http://www.asha.org/PRPSpecificTopic.aspx?folderid = 8589942600&section=Signs_and_Symptoms
   Google Scholar
• Lawshe CH. A quantitative approach to content validity. Personnel Psychol 1975;28:563–75.
   Web of Science ®Google Scholar
• Acock AC. Discovering structural equation modeling using Stata. 1st ed. College Station, Texas: Stata Press; 2013.
   Google Scholar
• Wang J, Wang X. Estructural equation modeling applications using MPLUS. United Kingdom: John Wiley & Sons Inc; 2012.
   Google Scholar
• Hosmer DW, Lemshow S, Sturdivant RX. Applied logistic regression. 3th ed. Hoboken: John Wiley & Sons Inc; 2013.
   Google Scholar
• Acock AC. A gentle introduction to Stata. 4th ed. College Station, Texas: Stata Press; 2014.
   Google Scholar
• Hunter EJ, Tanner K, Smith ME. Gender differences affecting vocal health of women in vocally demanding careers. Logoped Phoniatr Vocol 2011;36:128–36.
   PubMed Web of Science ®Google Scholar
• Butler JE, Hammond TH, Gray SD. Gender-related differences of hyaluronic acid distribution in the human vocal fold. Laryngoscope 2001;111:907–11.
   PubMed Web of Science ®Google Scholar
• Solomon NP. Vocal fatigue and its relation to vocal hyperfunction †. Int J Speech Lang Pathol 2008;10:254–66.
   PubMed Web of Science ®Google Scholar
• Titze IR. Vocal fatigue: some biomechanical considerations. In: Lawrence VL, ed. Transcripts of the twelfth symposium: care of the professional voice. Part I: scientific papers. New York: The Julliard School; 1983. p. 97–104.
   Google Scholar
• Sivasankar M, Fisher KV. Oral breathing challenge in participants with vocal attrition. J Speech Lang Hear Res 2003;46:1416–27.
   PubMed Web of Science ®Google Scholar
• Verdolini K, Min Y, Titze IR, et al. Biological mechanisms underlying voice changes due to dehydration. J Speech Lang Hear 2002;45:268–81.
   PubMed Web of Science ®Google Scholar
• van Houtte E, Claeys S, Wuyts F, van Lierde K. Voice disorders in teachers: occupational risk factors and psycho-emotional factors. Logoped Phoniatr Vocol 2012;37:107–16.
   PubMed Web of Science ®Google Scholar
• Ilomäki I, Leppänen K, Kleemola L, et al. Relationships between self-evaluations of voice and working conditions, background factors, and phoniatric findings in female teachers. Logoped Phoniatr Vocol 2009;34:20–31.
   PubMed Web of Science ®Google Scholar
• Johns-Fiedler H, van Mersbergen M. The prevalence of voice disorders in 911 emergency telecommunicators. J Voice 2015;29:389.e1–10.
   Web of Science ®Google Scholar
• Garnier M, Henrich N, Dubois D. Influence of sound immersion and communicative interaction on the Lombard Effect. J Speech Lang Hear Res 2010;53:588–608.
   PubMed Web of Science ®Google Scholar
• Pittman AL, Wiley TL. Recognition of speech produced in noise. J Speech Lang Hear Res 2001;44:487–96.
   PubMed Web of Science ®Google Scholar
• Pearsons K, Bennett L, Fidell S, Speech levels in various noise environments. Washington, DC: Office of Health and Ecological Effects, Rep. [document on the Internet] No. EPA-600/1-77-025; 1977. Available from: http://nepis.epa.gov/Exe/ZyPDF.cgi/P100CWGS.PDF?Dockey=P100CWGS.PDF [last accessed 18 Sept 2016].
   Google Scholar
• Sala E, Airo E, Olkinuora P, et al. Vocal loading among day care center teachers. Logoped Phoniatr Vocol 2002;27:21–8.
   PubMedGoogle Scholar
• Södersten M, Granqvist S, Hammarberg B, Szabo A. Vocal behavior and vocal loading factors for preschool teachers at work studied with binaural DAT recordings. J Voice 2002;16:356–71.
   PubMed Web of Science ®Google Scholar
• Yiu EM, Yip PP. Effect of noise on vocal loudness and pitch in natural environments: an accelerometer (Ambulatory Phonation Monitor) study. J Voice 2016;30:389–93.
   PubMed Web of Science ®Google Scholar
• Patel JA, Broughton K. Assessment of the noise exposure of call centre operators. Ann Occup Hyg 2002;46:653–61.
   PubMed Web of Science ®Google Scholar
• Planueu V, Noise hazards associated with the call centre industry, INRS. [document on the Internet] 12/12/2005. Available from: http://www.isegnet.com.br/siteedit/arquivos/Estatistica%20 europeia%20%20de%20Exposição%20em%20Teleatendimeto.pdf [cited 2 Oct 2016].
   Google Scholar
• Cantor Cutiva LC, Burdorf A. Medical costs and productivity costs related to voice symptoms in Colombian teachers. J Voice 2015;29:776.e15–22.
   PubMed Web of Science ®Google Scholar
• Lehto L, Alku P, Bäckström T, Vilkman E. Voice symptoms of call-centre customer service advisers experienced during a work-day and effects of a short vocal training course. Logoped Phoniatr Vocol 2005;30:14–27.
   PubMedGoogle Scholar
• Rantala LM, Hakala SJ, Holmqvist S, Sala E. Connections between voice ergonomic risk factors and voice symptoms, voice handicap, and respiratory tract diseases. J Voice 2012;26:819.e13–20.
   PubMed Web of Science ®Google Scholar
• Roy N, Bless DM. Personality traits and psychological factors in voice pathology: a foundation for future research. J Speech Lang Hear Res 2000;43:737–48.
   PubMed Web of Science ®Google Scholar
• Ben-David BM, Icht M. Voice changes in real speaking situations during a day, with and without vocal loading: assessing call center operators. J Voice 2016;30:247.e1–11.
   Web of Science ®Google Scholar
• Gilardi L, Fubini L, d’Errico A, et al. Working conditions and health problems among call-centre operators: a study on self-reported data in the Piedmont Region (Italy). Med Lav 2008;99:415–23.
   PubMed Web of Science ®Google Scholar
• Garrett CG, Cohen SM. Otolaryngological perspective on patients with throat symptoms and laryngeal irritation. Curr Gastroenterol Rep 2008;10:195–9.
   PubMedGoogle Scholar
• Manfredi C, Dejonckere PH. Voice dosimetry and monitoring, with emphasis on professional voice diseases: critical review and framework for future research. Logoped Phoniatr Vocol 2016;41:49–65.
   PubMed Web of Science ®Google Scholar