Validation of a Screening Method for Voice Disorders
Rantanen, Jemima (2020)
Rantanen, Jemima
Åbo Akademi
2020
Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2020042722592
https://urn.fi/URN:NBN:fi-fe2020042722592
Tiivistelmä
An optimal voice use is an important tool for verbal communication such as expressing and sharing ideas, emotions and thoughts. Changes in the quality of voice can be distressing and have a severe impact on a person’s quality of life, especially for people in voice-demanding occupations. Because voice disorders have a negative impact on well-being, communication, ability to work and the overall quality of life, it is crucial to screen for voice problems at an early stage, preventing the development from vocal symptoms to a voice disorder.
The aim of this thesis was to conduct a validation of a fast and easy screening method, coined as Screen11. Apart from some modifications, Screen11 relies heavily on eleven vocal symptoms used in several previous studies. This study investigated the internal consistency, convergent validity and test-retest reliability of Screen11. Additionally, it examined whether the eleven items loads sufficiently on the same underlying factor measuring voice disorders using an exploratory factor analysis.
The voice patient group (n = 48) comprised of patients from TYKS phoniatric department seeking help for their voice problems. For these voice patients, voice-healthy controls were recruited (n = 48) that were matched according to gender, age and occupation. The participants answered Screen11, along with two previously validated voice questionnaires, namely Voice Handicap Index (VHI) and Voice Activity and Participation Profile (VAPP). The participants in the voice patient group also received a retest of Screen11.
The results showed that Screen11 possessed good internal consistency, and correlated sufficiently with VHI and VAPP. The test-retest correlation in Screen11 was close to strong, suggesting that Screen11 was relatively reliable across time. The exploratory factor analysis showed that the items in Screen11 loaded on two separate factors: voice symptoms and laryngopharyngeal symptoms.
Screening is a way to detect voice problems at an early stage, before a voice disorder occurs. Due to the successful validation of Screen11, it could serve as a useful addition to the toolbox of screening methods aimed at identifying possible voice disorders at an early stage. Future studies on Screen11 could examine the most optimal threshold in Screen11 for discriminating between those having visible changes on the vocal folds compared to those with no visible changes on the vocal folds.
The aim of this thesis was to conduct a validation of a fast and easy screening method, coined as Screen11. Apart from some modifications, Screen11 relies heavily on eleven vocal symptoms used in several previous studies. This study investigated the internal consistency, convergent validity and test-retest reliability of Screen11. Additionally, it examined whether the eleven items loads sufficiently on the same underlying factor measuring voice disorders using an exploratory factor analysis.
The voice patient group (n = 48) comprised of patients from TYKS phoniatric department seeking help for their voice problems. For these voice patients, voice-healthy controls were recruited (n = 48) that were matched according to gender, age and occupation. The participants answered Screen11, along with two previously validated voice questionnaires, namely Voice Handicap Index (VHI) and Voice Activity and Participation Profile (VAPP). The participants in the voice patient group also received a retest of Screen11.
The results showed that Screen11 possessed good internal consistency, and correlated sufficiently with VHI and VAPP. The test-retest correlation in Screen11 was close to strong, suggesting that Screen11 was relatively reliable across time. The exploratory factor analysis showed that the items in Screen11 loaded on two separate factors: voice symptoms and laryngopharyngeal symptoms.
Screening is a way to detect voice problems at an early stage, before a voice disorder occurs. Due to the successful validation of Screen11, it could serve as a useful addition to the toolbox of screening methods aimed at identifying possible voice disorders at an early stage. Future studies on Screen11 could examine the most optimal threshold in Screen11 for discriminating between those having visible changes on the vocal folds compared to those with no visible changes on the vocal folds.
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