Voice-Related Patient-Reported Outcome Measures: A Systematic Review of Instrument Development and Validation

What do the voice-related parameters tell us? The multiparametric index scores, cepstral-based methods, patient-reported outcomes, and durational measurements

PURPOSE

This study aimed to identify how the acoustic parameters, patient-reported outcomes (PROs), and durational measurements differ based on perceptually rated dysphonia severity and to investigate their relationship with dysphonia severity.

METHODS

One hundred seventy-nine subjects (males-78, females-101; mean ± SD age of 47.79 ± 14.05 years) with various etiology of dysphonia were included in this prospective cohort study. The G parameter of GRBAS was used to rate dysphonia severity. The Acoustic Voice Quality Index (AVQI v. 03.01), Acoustic Breathiness Index (ABI), and cepstral peak prominence-smoothed (CPPS) values for sustained vowel (CPPSsv) and connected speech (CPPScs) samples were obtained using the Praat software. The Voice Handicap Index-10 (VHI-10) and Voice-Related Quality of Life (V-RQOL) were used for PROs, and the maximum phonation time (MPT) and s/z ratio were measured as durational parameters.

RESULTS

The acoustic parameters, including AVQI and ABI scores, and CPPSsv and CPPScs values significantly differed based on dysphonia severity, particularly in those with moderate (G2) or severe dysphonia (G3) compared to those with normal (G0) and/or slightly deviated (G1) voice. Among the PROs, VHI-10 scores significantly differed only between the groups G1 and G2 (p < 0.005) and the groups G1 and G3 (p < 0.005), whilst there were not any significant differences between the V-RQOL scores of all the compared groups. Significant differences were observed within the groups for MPT, but the s/z ratio significantly differed only between the groups G1 and G3. Correlation analysis revealed significant relationships between the G parameter of GRBAS and all measured variables (p < 0.001).

CONCLUSIONS

Particular attention should be paid to the AVQI and ABI scores, CPPsv and CPPcs values, VHI-10 scores, and MPT values since they provide valuable information for overall dysphonia severity.

Singing Voice Handicap Index-10 Minimal Clinically Important Difference: A Prospective Determination

BACKGROUND/OBJECTIVES

The Singing Voice Handicap Index-10 (SVHI-10) is a validated patient-reported outcome measure (PROM) that assesses patients' perception of handicap related to singing voice. A normative value has been established with a score ≥20 being abnormal. However, there is no defined minimal clinically important difference (MCID). This study prospectively determines the MCID of SVHI-10 among a diverse group of singers.

METHODS

103 adult singers with and without voice complaints completed SVHI-10 twice, 30 days apart. MCID for the SVHI-10 was determined using distribution-based receiver-operating characteristic (ROC) curve analysis.

RESULTS

Twenty-two men (1 transgender), 75 women (1 transgender), and 6 nonbinary individuals participated. The most frequently reported singing genres were classical (44.7%), musical theater (17.5%), and pop (10.7%). Mean initial SVHI-10 score was 13.05 (standard deviation 7.397), and mean follow-up SVHI-10 was 13.13 (7.994). There was a significant positive correlation between initial and follow-up SVHI-10 scores (r = 0.879, p < 0.001). SVHI-10 scores were significantly higher among participants who reported voice changes in the past year (p < 0.001) or sought voice treatment (p = 0.001) compared with participants who did not. SVHI-10 scores varied significantly based on singing type. The area under the ROC curve for SVHI-10 was 0.700 (p = 0.003). The SVHI-10 MCID was determined to be 9.5.

CONCLUSIONS

An SVHI-10 score change ≥10 should be considered clinically meaningful. This definition has been missing from the literature and will improve understanding of patients' responses to treatment, which will help advance clinical care and track research outcomes.

LEVEL OF EVIDENCE

4 Laryngoscope, 135:752-757, 2025.

Cross-Cultural Adaptation and Validation of the Mandarin Chinese Version of the Vocal Performance Questionnaire

OBJECTIVE

The Mandarin Chinese version of the Vocal Performance Questionnaire (VPQ-CM) for evaluating vocal performance.

METHODS

A total of 120 participants with vocal disorders and 120 healthy participants completed this study. Investigators translated the original VPQ into the VPQ-CM, and participants completed the questionnaire fill it. Investigators assessed the reliability by internal consistency and test-retest. And investigators evaluated content validity through expert consensus by the Delphi method, measured structural validity by factor analysis, and assessed criterion validity by analyzing the correlation between VPQ-CM and Voice Handicap Index-10 (VHI-10). Discriminant validity was evaluated by comparing the scores of participants with vocal disorders and healthy participants for significant differences. Receiver Operating Characteristic curve analysis was utilized to identify the cutoff score to distinguish participants with or without vocal disorders.

RESULTS

VPQ-CM demonstrated internal consistency (Cronbach's α = 0.882) and test-retest reliability (intra-class correlation coefficient: 0.954). The expert committee unanimously agreed that the questionnaire had good content validity (expert authority level Cr = 0.767-0.967, coefficient of variation Cv = 5.23%-16.64%). The loading values of each item in the described common factors of the VPQ-CM were greater than 0.4, indicating good structural validity. There was a significant correlation between the VPQ-CM and VHI-10 (r = 0.608-0.761, P < 0.001), demonstrating good criterion validity of the questionnaire. Significant differences were observed in the VPQ-CM scores between participants with and without vocal disorders (P < 0.001), indicating good discriminant validity of the VPQ-CM.

CONCLUSION

The VPQ-CM demonstrated good reliability and validity and can be utilized for clinical measurement of vocal performance in patients with vocal disorders.

LEVEL OF EVIDENCE

2a.

Comprehensive Review of Multilingual Patient-Reported Outcome Measures for Dysphonia

INTRODUCTION

Patient-reported outcome measures (PROMs) represent an important part of a comprehensive voice assessment for clinical care and research. Access to multilingual PROMs enables inclusion of information from diverse patient populations. This review compares available translated and validated PROMs for adult dysphonia.

METHODS

A comprehensive review of Cochrane Library, PubMed, and OnBase was performed for PROMs evaluating adult dysphonia in all languages. References were additionally queried. PROM development process, available languages, and study group demographics were compared between PROMs available in at least one language other than English. Cultural validation for each PROM was assessed against Beaton et al's six-stage cross-cultural adaptation guidelines.

RESULTS

Of 21 PROMs assessing adult dysphonia, 13 (62%) were available in one or more language other than English, and nine (43%) were available in seven or more. Voice Handicap Index (VHI) and VHI-10 were the most widely available translated questionnaires (n = 29, n = 15) followed by Vocal Fatigue Index (VFI), Singing-VHI (S-VHI), and Voice-Related Quality of Life (V-RQOL) (n = 11). Identified questionnaires were available in English (n = 21), Persian (n = 9), Kannada (n = 8), and Turkish (n = 7) as the most common languages. Females averaged 60% (range 13%-81%) of dysphonic subject groups and 59% of non-dysphonic subject groups (range 20%-88%). Of the 113 articles that reported cultural validation techniques, 16 (14%) adequately fulfilled the cross-cultural adaptation guidelines used.

CONCLUSION

Multilingual PROMs for dysphonia are widely available, but linguistic representation varied. VHI, VFI, S-VHI, and V-RQOL are the most widely translated. The most represented languages were Persian, Kannada, and Turkish. Few studies adequately followed cross-cultural adaptation standards. Efforts to translate and validate questionnaires into different languages may allow more diverse assessment and comparison of larger populations with dysphonia. This review identifies translated PROMs for dysphonia and analyzes their level of cultural validation for future use.

Cross-Cultural Adaptation and Validation of the Turkish Version of the Evaluation of the Ability to Sing Easily (EASE-TR)

OBJECTIVES

The Evaluation of the Ability to Sing Easily (EASE) is used to assess the singer's perceptions of the current singing voice status. The purpose of this research was to culturally adapt the Turkish version of the EASE (EASE-TR) and investigate its validity and reliability.

METHODS

According to the Professional Society for Health Economics and Outcomes Research recommendations, the original version of the EASE was translated and culturally adapted into Turkish. One hundred amateur or professional choir members completed the EASE-TR and the Vocal Tract Discomfort Scale (VTDS) before and after the singing performance. EASE-TR scores before and after performance were compared for construct validity. "Known Groups Validity" was used according to variables of singing experience, voice training status, and current voice complaints. As part of the criterion validity assessment, the correlation between the after-performance EASE-TR scores and the VTDS scores was evaluated. Cronbach's alpha was calculated for internal consistency. EASE-TR was applied twice to 35 participants to measure test-retest reliability.

RESULTS

Statistically significant (P < 0.001) differences were found between the before and after performance scores in all subscales and the total score of the EASE-TR. A moderate positive correlation (r = 0.664) was observed between EASE-TR and VTDS. There was a significant difference in the EASE-TR scores between the group with vocal complaints and the group without complaints. The Cronbach alpha value of the EASE-TR was found to be 0.894. EASE-TR was found to have a good degree of test-retest reliability.

CONCLUSION

EASE-TR is a valid and reliable self-reported tool for singers to measure current singing voice function. Our findings indicate that EASE-TR is a sensitive tool that can measure the positive effect of voice training, experience, and vocal warm-up and even can detect voice complaints in participants who are not actively seeking treatment.

CLINICAL TRIAL

ClinicalTrials.gov identifier NCT05999045.

The Degree of Change and Relationship in Self-perceived Handicap and Acoustic Voice Quality Associated With Voice Therapy

INTRODUCTION

Outcome measures describing acoustic voice quality and self-perceived vocal handicap are commonly used in clinical voice practice. Previous reports of the relationship between acoustic and self-perceived measures have found only limited associations, but it is unclear if acoustic measures associated with voice quality and self-perceived voice handicap change in a similar manner over the course of voice treatment. The current study, therefore, considered the relationship between the degree of change in Acoustic Voice Quality Index (AVQI) and Voice Handicap Index (VHI-30 and VHI-10) in dysphonic patients receiving treatment in a private practice voice clinic.

METHODS

Data were collected retrospectively from patient records of a private practice voice clinic over 80 consecutive months. For each patient, their voice disorder diagnosis, age, and biological sex were collected as well as pre-and post-treatment measures of the AVQI and VHI-30 or VHI-10 depending on which version was used. Correlations were calculated between the AVQI and VHI-30 and the AVQI and VHI-10 before and after treatment as well as for the percentage change of AVQI and VHI-30/VHI-10. Friedman and Kruskal-Wallis tests were used to determine the pre-and post-treatment effect and group differences respectively.

RESULTS

Seventy-eight patients were included in the analyses. The scores of the AVQI (χ²[1] = 24.01, P < 0.001), VHI-30 (χ²[1] = 18.00, P < 0.001), and VHI-10 (χ²[1] = 38.35, P < 0.001) all improved significantly after treatment. However, correlations between the AVQI and VHI-30, and the AVQI and VHI-10 were all non-significant, except for a moderate correlation between the AVQI and VHI-10 before treatment (r[43] = 0.31, P = 0.04). The percentage change of the AVQI and the VHI-30/VHI-10 did not correlate significantly.

CONCLUSIONS

Voice therapy significantly improved acoustic and self-perceived vocal outcome measures. However, there was no significant relationship between these measures before or after treatment, nor was there a relationship in their degree of change. Results support the notion that VHI and AVQI measure unique constructs and that voice therapy can have a positive impact on both.

Similarities and differences across patient completed voice case history questionnaires - A scoping review

BACKGROUND

Case history assessments are ubiquitously performed across various health professions for diagnostic purposes. Questionnaires are considered a valuable tool within this process. There is currently no standardized tool available to collect such information in the assessment of voice disorders. Conflicting advice from peak bodies and research evidence makes the process heterogenous, haphazard and difficult to compare findings.

OBJECTIVE

To systematically identify existing case history questionnaires available for general clinical practice and provide synthesis and analysis of the questions within.

METHODS

A scoping review was conducted across published and unpublished literature using the PRISMA Extension for Scoping Reviews framework. The broad search included research papers within six electronic databases, textbooks, online publishing sites, voice clinic websites and peak body websites. Search criteria were uniformly applied. Descriptive analysis and content analysis was conducted. At each stage, transparency and replicability was achieved through an independent review process.

RESULTS

Identified voice case history questionnaires were few (n = 23) with 80% from unpublished sources. A total of 581 unique questions were identified. No single question was common across all 23 questionnaires. The most frequently asked questions, excluding demographics, included medicines taken (n = 21), smoking (n = 20) and alcohol (n = 19). These questions were not reflected in the highest frequency categories: Health Status/Medical Conditions/Reports (n = 200), Vocal Symptoms (n = 88), Voice Use (n = 51) despite these categories representing 58% of all questions asked. Within the highest frequency category, the subcategory of Systemic Diseases was the highest, representing 19% of all questions within the category.

CONCLUSIONS

This study illuminates the similarities yet many differences that exist across identified voice case history questionnaires in terms of number of questions, number of categories, preference for question-type and structure. It demonstrates the need for standardization of a voice case history questionnaire which would potentially enable more accurate diagnosis and data comparison between voice clinics to aid future research.

Validity and Reliability of the Dutch Children's Voice Handicap Index-10

OBJECTIVES

Voice-related quality of life (Qol) questionnaires provide the clinician with information regarding the impact of voice disorders on the patient's well-being. The available voice-related QoL tools for Dutch-speaking children are parent-proxy in nature. However, the use of proxy measurements has been debated in the literature. The Children's Voice Handicap Index-10 (CVHI-10) is a self-reported QoL tool for dysphonic children. Therefore, the aim of this study is to develop and validate a Dutch version of the CVHI-10.

STUDY DESIGN

Observational, prospective, cross-sectional study.

METHODS

The original version of the CVHI-10 was translated and adapted to Dutch according to the recommendations of the Quality of Life Special Interest Group - Translation and Cultural Adaptation group. Subsequently, the questionnaire was individually completed by 77 children (dysphonic group: n = 30, control group: n = 47) between eight and 14 years. In order to investigate test-retest reliability, 50% of the participants were asked to complete the questionnaire twice with an interval of 2 weeks. Internal consistency, test-retest reliability and construct validity were calculated. A receiver operating characteristic (ROC) analysis was conducted to check the sensitivity and specificity levels of the instrument.

RESULTS

Internal consistency measured with Cronbach's alpha coefficient was 0.745. Test-retest reliability measured with intraclass correlation coefficients was 0.718. Mean total CVHI-10 score was 6.17 ± 2.7 in the dysphonic group and 2.68 ± 2.6 in the control group. The difference in total score between the groups was statistically significant (P < 0.001), suggesting that the tool has good construct validity. ROC analysis demonstrated moderate diagnostic accuracy (area under the curve = 0.869) and suggested a cut-off score of 3.5.

CONCLUSIONS

The Dutch CVHI-10 is the first self-reported voice-related QoL tool for dysphonic Dutch-speaking children. It is a valid, reliable and sensitive tool to assess the impact of a voice disorder on the child's well-being.

Glottic insufficiency caused by vocal fold atrophy with or without sulcus: systematic review of outcome measurements

PURPOSE

Identifying outcome measurements instruments (OMIs) to evaluate treatment efficacy in patients with vocal fold atrophy and/or sulcus.

METHODS

Systematic review of records published before March 2021 by searching Pubmed and EMBASE. Included studies reported on adults (> 18 year) with dysphonia caused by glottic insufficiency due to vocal fold atrophy with or without sulcus, who were enrolled into a randomized controlled trial, a non-randomized controlled trial, a case-controlled study or a cohort study. All included studies described an intervention with at least one outcome measurement.

RESULTS

A total of 5456 studies were identified. After removing duplicates, screening title and abstract and full text screening of selected records, 34 publications were included in final analysis. From these 50 separate OMIs were recorded and categorized according to the ELS protocol by DeJonckere et al. (Eur Arch Otorhinolaryngol 258: 77-82, 2001). With most OMIs being used in multiple studies the total number of OMIs reported was 265. Nineteen (19) individual OMIs accounted for 80% of reports. The most frequently used OMIs according to category were: VHI and VHI-10 (subjective evaluation); G of GRBAS (perceptual evaluation); F0, Jitter and Shimmer (acoustic evaluation); MPT and MFR (aerodynamic evaluation) and glottic closure and mucosal wave (endoscopic evaluation). Of these OMIs VHI had a high percentage of significance of 90%.

CONCLUSION

This systematic review identifies the most used OMIs in patients with glottic incompetency due to vocal fold atrophy and/or sulcus as a step toward defining a Core Outcome Set (COS) for this population.

PROSPERO REGISTRATION

238274.

Randomized Controlled Trial of Awake Transnasal Laser-Assisted Surgery for Benign Laryngeal Lesions

OBJECTIVE

To compare functional and cost-effectiveness of awake transnasal laser assisted-surgery versus microlaryngeal surgery for benign laryngeal lesions.

METHODS

This was a prospective non-inferiority randomized controlled trial conducted from May 2021 to December 2022 at two tertiary referral hospitals in Hong Kong. Patients were block-randomized to receive either awake transnasal laser-assisted surgery or microlaryngeal surgery, with post-operative follow-up in a multidisciplinary voice clinic for 1-year. Primary outcome was Voice Handicap Index (VHI-30). Secondary outcomes included operation time, complications, length of stay, peri-operative discomfort, recurrence, and medical costs.

RESULTS

Sixty-one patients were randomized to either awake transnasal laser-assisted surgery (n = 30) and microlaryngeal surgery (n = 31). Both groups had comparable demographics and laryngeal pathologies. Both groups showed significant improvement of VHI-30 score over time and had comparable post-operative VHI-30. Awake transnasal laser-assisted surgery group had a significantly shorter length of stay (0.5 vs. 1 day) and less throat discomfort (2 vs. 4) compared to microlaryngeal surgery group. Intraoperative complications were more common in microlaryngeal surgery group (14.3% vs. 0%). Otherwise, both groups had similar operative time and recurrence rate. Cost-analysis showed a significantly lower hospital cost for awake transnasal laser-assisted surgery (USD 3090) compared to microlaryngeal surgery group (USD 5120).

CONCLUSION

Awake transnasal laser-assisted surgery was safe, functionally non-inferior, as measured by VHI-30, to microlaryngeal surgery in managing benign laryngeal lesions, while superior to microlaryngeal surgery in peri-operative discomfort and medical costs.

LEVEL OF EVIDENCE

2 Laryngoscope, 134:3732-3740, 2024.

Poststroke Communication Ability Predicts Patient-Informant Discrepancies in Reported Activities and Participation

BACKGROUND

Participation in life situations has been identified by people with aphasia (PWA) as an ultimate outcome of rehabilitation and is often measured with patient-reported outcome measures (PROMs) or informant-reported measures. It is known that PWA and informants do not always produce similar scores on measures of activities and participation. However, systematic differences between PWA and informants and the causes of these differences are not well understood. Here, we investigated these differences as a function of language impairment, perceived level of activity and participation success, and depressive symptoms.

METHOD

Participants were 29 PWA-informant dyads who completed a performance-based language assessment and three measures related to different aspects of activities and participation. Outcome variables were PWA-informant difference scores in the activities and participation measures.

RESULTS

PWA ratings of activities and participation were not statistically significantly associated with performance-based language severity. Hierarchical regression models with both language impairment and informant-reported scores as predictor variables explained 53%-71% of the variance in PWA-informant difference scores (all p < .05). In particular, mild communication challenges were associated with the PWA reporting significantly worse participation than the informant perceived. In contrast, more severe communication challenges were associated with the PWA reporting significantly better participation than the informant perceived.

DISCUSSION

These findings highlight the importance of measuring participation by PROM. The PWA's experience of participation is not related to their level of language impairment and is predictably different from their care partners' perspective. As others have also reported, "mild" aphasia is not so mild to the PWA. Similarly, "severe" may not be so severe to the PWA. Further research is needed to connect these findings with counseling and caregiver education. Research on response processes (e.g., response shift) is also warranted.

The Sensory Processing Measure - Second Edition: A Critical Review and Appraisal

This paper aims to provide an overview and critique of the newly updated Sensory Processing Measure - second edition (SPM-2) to assist clinicians in understanding its strengths and limitations and in selecting an appropriate sensory processing scale that best meets their clients' needs. Using four established research methodological quality critique tools, the SPM-2's family of age-related versions was evaluated by administering the tools separately and discussed their scoring and findings to reach a consensus on all ratings. The tools identified several strengths and weaknesses of the SPM-2. The SPM-2's items on its age-related versions scored well in the criteria of internal consistency, test-retest reliability, explanation of the instrument design, construct validity, content validity, criterion validity and ease of administration, and scoring. However, a lack of normative data for participant groups outside of the United States, methodological limitations, and a lack of investigation into some important psychometric properties, particularly responsiveness, were identified as notable weaknesses of the SPM-2's items on its age-related versions based on the critique criteria. Overall, despite the areas needing further development and investigation, the SPM-2 is considered a psychometrically sound tool that provides a reliable and valid approach to measuring aspects of the sensory processing construct across the lifespan.

Reliability of a Smartphone App to Objectively Monitor Performance Outcomes in Degenerative Cervical Myelopathy: Observational Study

BACKGROUND

Developing new clinical measures for degenerative cervical myelopathy (DCM) is an AO Spine RECODE-DCM Research, an international and multi-stakeholder partnership, priority. Difficulties in detecting DCM and its changes cause diagnostic and treatment delays in clinical settings and heightened costs in clinical trials due to elevated recruitment targets. Digital outcome measures can tackle these challenges due to their ability to measure disease remotely, repeatedly, and more economically.

OBJECTIVE

The aim of this study is to assess the reliability of the MoveMed battery of performance outcome measures.

METHODS

A prospective observational study in decentralized secondary care was performed in England, United Kingdom. The primary outcome was to determine the test-retest reliability of the MoveMed performance outcomes using the intraclass correlation (ICC) of agreement . The secondary outcome was to determine the measurement error of the MoveMed performance outcomes using both the SE of the mean (SEM) of agreement and the smallest detectable change (SDC) of agreement . Criteria from the Consensus-Based Standards for the Selection of Health Measurement Instruments (COSMIN) manual were used to determine adequate reliability (ie, ICC of agreement ≥0.7) and risk of bias. Disease stability was controlled using 2 minimum clinically important difference (MCID) thresholds obtained from the literature on the patient-derived modified Japanese Orthopaedic Association (p-mJOA) score, namely, MCID ≤1 point and MCID ≤2 points.

RESULTS

In total, 7 adults aged 59.5 (SD 12.4) years who live with DCM and possess an approved smartphone participated in the study. All tests demonstrated moderate to excellent test-retest coefficients and low measurement errors. In the MCID ≤1 group, ICC of agreement values were 0.84-0.94 in the fast tap test, 0.89-0.95 in the hold test, 0.95 in the typing test, and 0.98 in the stand and walk test. SEM of agreement values were ±1 tap, ±1%-3% stability score points, ±0.06 keys per second, and ±10 steps per minute, respectively. SDC of agreement values were ±3 taps, ±4%-7% stability score points, ±0.2 keys per second, and ±27 steps per minute, respectively. In the MCID ≤2 group, ICC of agreement values were 0.61-0.91, 0.75-0.77, 0.98, and 0.62, respectively; SEM of agreement values were ±1 tap, ±2%-4% stability score points, ±0.06 keys per second, and ±10 steps per minute, respectively; and SDC of agreement values were ±3-7 taps, ±7%-10% stability score points, ±0.2 keys per second, and ±27 steps per minute, respectively. Furthermore, the fast tap, hold, and typing tests obtained sufficient ratings (ICC of agreement ≥0.7) in both MCID ≤1 and MCID ≤2 groups. No risk of bias factors from the COSMIN Risk of Bias checklist were recorded.

CONCLUSIONS

The criteria from COSMIN provide "very good" quality evidence of the reliability of the MoveMed tests in an adult population living with DCM.

The Voice Problem Impact Scales (VPIS)

INTRODUCTION

Patient-reported outcome measures (PROMs) are important for systematically assessing a person's perspectives and experiences with disease to inform clinical decision-making. However, PROMs can occasionally fail to capture subtle differences amongst subgroups. In response to this problem, the aim of the current study was to examine the convergent validity of four patient-reported voice activity and participation scales to better reflect and describe the impact of a voice problem in a patient's work, home, social and overall life. It was hypothesized that augmenting the validated PROM with a directed situational short instrument may enhance patient and clinician communication. This would allow for further description of individual areas of activity limitations or participation restrictions that are relevant to the patient, potentially informing therapeutic goals.

METHODS

The Voice Problem Impact Scales (VPIS) were developed following the criteria outlined by Francis et al (2016). A retrospective chart review was completed for voice therapy treatment seeking patients at the USC Voice Center. Results from the Voice Handicap Index-10 (VHI-10) and VPIS scores were recorded at the time of the evaluation. Consensus Auditory Perceptual Evaluation of Voice (CAPE-V) assessment was performed by an SLP with fellowship training in voice.

RESULTS

Three hundred four charts were reviewed, and 198 met inclusion criteria. When considering all patients, VHI-10 scores were significantly correlated with each domain of the VPIS, including overall (R = 0.635, P < 0.001), work (R = 0.436, P < 0.001), social (R = 0.714, P < 0.001), and home (R = 0.637, P < 0.001). For females aged 18-39 and aged ≥60, the VHI-10 was correlated with all domains except work. CAPE-V score was significantly correlated with the social domain (R = 0.236, P = 0.001). Using the corrected significance level, it was not correlated with the overall (R = 0.165, P = 0.022), home (R = 0.197, P = 0.006), or work domains (R = 0.042, P = 0.567). The VHI-10 was not correlated with any of the VPIS domains for males aged 18-39, was correlated with all domains for males aged 40-59, and was correlated with all domains except work for males aged ≥60. Age was the only significant predictor of the work domain (β = -4.631 P < 0.001), with a model fit of R2 = 0.101.

CONCLUSIONS

Scores from each domain of the VPIS are significantly correlated with VHI-10 scores thus confirming the instrument's convergent validity. There are certain groups for which currently used questionnaires may underrepresent the impact of dysphonia on the patient's life. The VPIS represents a broad tool that might allow the patient to interpret each scale within their individual context and cultural background. The VPIS emphasizes the significance of the dysphonia on quality of life in four common environments. Using this instrument can augment questionnaires and initiate conversations between the provider and patient to determine the area(s) where voice impairment is most important enhancing shared decision-making on therapeutic goals for plan of care.

Toward Enhanced Voice-Related Self-Reports: Translation, Cross-Cultural Adaptation, and Validity

PURPOSE

This article provides a commentary on voice-related self-reports and presents various shortcomings endemic in the development and validation of these measures. Emphasis is placed on issues of construct validity, translation, and cross-cultural adaptation. Finally, a demonstration is provided to elucidate the importance of cross-cultural adaptation.

METHODS

An example of a voice-related self-report that lacks cross-cultural adaptation is provided, and a linguistic translation and cross-cultural adaptation process is outlined and demonstrated. A bilingual voice scientist, a bilingual speech-language pathologist (SLP), and two experts in voice-related self-reports completed a multistep linguistic translation and cross-cultural adaptation process and obtained back-translations from five SLPs native to the self-report's source culture.

RESULTS

Analyses of the back-translations demonstrated that the mean BiLingual Evaluation Understudy (BLEU) scores of the adapted items were higher overall than the back-translations of the original English items.

CONCLUSIONS

Unvalidated translations of voice-related self-reports are commonly used as a baseline to further translate the measure, and this deteriorates cross-cultural health equity. Cross-cultural adaptation is a crucial, but often overlooked process when translating and adapting self-reports. The present article calls for standardized methodologies with an emphasis on the necessity of careful translation methods and cultural adaptation processes.

The Communicative Participation Item Bank-Gender-Diverse Version: Item Bank Calibration and Short Form

PURPOSE

The purpose of this study was to calibrate an item set for a new version of the Communicative Participation Item Bank (CPIB) specifically for use with gender-diverse clients. This new version contains a new item stem as well as other minor wording changes from the original CPIB in order to be acceptable to gender-diverse respondents.

METHOD

Survey data on 47 candidate items were collected from 434 transgender individuals: 219 assigned female at birth (AFAB) and 215 assigned male at birth (AMAB). Item response theory analyses included evaluation of unidimensionality, local dependence, fit to a graded response model, and differential item functioning (DIF) between AFAB and AMAB respondents.

RESULTS

The original set of 47 items was unidimensional, but 16 items were removed due to local dependence, resulting in a final item bank of 31 items. There was no evidence of DIF between AFAB and AMAB participants. Reliability of the full item bank is good (i.e., > 0.8) between T scores of 20 and 76 and high (i.e., > 0.9) between T scores of 20 and 68. The short form had good reliability (i.e., > 0.8) between T scores of 24 and 64.

CONCLUSIONS

The Communicative Participation Item Bank-Gender-Diverse (CPIB-GD) version provides a new option for person-reported outcome measurement with gender-diverse clients. Clinicians are cautioned to use only the new CPIB-GD with gender-diverse clients, and not the original CPIB due to unacceptable wording in the original version for this population. The original CPIB remains valid and appropriate for the populations for which it was developed.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.24993309.

Development of a Voice Handicap Index for Clergymen: An Investigation of Its Validation and Reliability

OBJECTIVE

This study aims to is to develop a disorder-specific patient-reported outcome measure to be used in Islamic clergymen with voice disorders and to investigate its validity and reliability.

METHODS AND PROCEDURES

Employing an exploratory sequential mixed-methods design, this study conducted in two phases. Initially, semistructured interviews were conducted with 10 clergymen experiencing voice disorders. Subsequently, the questionnaire underwent rigorous validation, encompassing content, construct, and criterion validity assessments, in addition to test-retest reliability and internal consistency analyses. The index was administered to a sample of 110 male clergy, including imams, muezzins, and Quran course teachers, with an age range from 19 to 61years.

RESULTS

Construct validity was established through factor analysis, resulting in a final 23-item scale categorized into two factors: physical-functional and emotional. Known group validity demonstrated a significant distinction between the study and control groups. Criterion validity reinforced the index's validity, displaying a correlation coefficient of 0.758 between the Voice Handicap Index for Clergymen and the well-established Voice Handicap Index. The questionnaire exhibited commendable internal consistency, with a Cronbach's Alpha (α) coefficient value of 0.971. Test-retest reliability analysis exhibited strong consistency, with a Pearson correlation coefficient of 0.863.

CONCLUSIONS

It is recommended that the developed valid and reliable handicap index in the present study be included in the voice assessment batteries of Islamic clergymen with voice complaints with the clinical and research purposes. In future studies, the validity of the questionnaire can be investigated more by examining the difference between the Voice Handicap Index for Islamic Clergymen (CVHI) scores obtained before and after treatment. Identifying a cut-off point that discriminates between dysphonic and normophonic clergymen may allow the use of the CVHI as a screening tool for this population.

A Systematic Review of Voice-Related Patient-Reported Outcome Measures for Use with Adults

PURPOSE

This paper's purpose is to provide a resource for clinicians and researchers of select voice-related patient-reported outcome measures (PROMs) available in the English language.

METHOD

A systematic search for voice-related PROMs was conducted between September 2020 and July 17, 2021. Databases included APA PsychInfo, Nursing and Allied Health Source, MEDLINE via the EBSCO interface, and Science Direct. Reference lists for PROMs-related articles were mined for reference to PROMs protocols.

RESULTS

Thirty voice-related PROMs were identified and categorized as either developed primarily for use in the clinic (n = 12), developed primarily for use in a specific research study (n = 6), or translated into English for publication (n = 12). Twelve PROMs were summarized: Aging Voice Index, Disease Specific Self-Efficacy in Spasmodic Dysphonia, Evaluation of the Ability to Sing Easily, Evaluating Voice Disability - Quality of Life Questionnaire, Glottal Function Index, Linear Analog Scale of Assessment of Voice Quality, Quality of Life in Recurrent Respiratory Papillomatosis, Speech Disability Questionnaire, Trans Woman Voice Questionnaire, Vocal Cord Dysfunction Questionnaire, Vocal Fatigue Index, and the Vocal Tract Discomfort Scale.

CONCLUSION

The PROMs can be categorized into English-language voice-related PROMs developed primarily for clinical use, English-language PROMs developed primarily for research use, and English-language PROMs translated into English. The extent of reliability and validity testing completed varies in the PROMs developed primarily for clinical use. A PROM's psychometric properties as well as the language in which the PROM was tested, should guide clinicians and researchers as they consider which instrument(s) to use.

Readability Analysis of Spanish Language Patient-Reported Outcome Measures in Laryngology

BACKGROUND

Laryngologists use patient-reported outcome measures (PROM) to determine the efficacy of an intervention or to evaluate a patient's symptomatology. PROMs should be developed for a diverse target audience, including patients of all literacy levels. The American Medical Association (AMA) recommends that PROMs are written at or below the sixth- grade level. In recent studies, readability scores for otolaryngology PROMs in English were above the recommended reading level. To date, there is limited data regarding the readability of Spanish PROMs. Thus, this study aims to report the readability of Spanish language PROMs in laryngology.

METHODS

This study analyzed nine Spanish language laryngology PROMs. The authors queried PROMs from PubMed and Google scholar based upon English language laryngology PROM systematic reviews. Common categories included voice, airway, dysphagia, and other laryngology PROMs. Only nine laryngology PROMs were translated and validated in the Spanish language and publicly available. The readability of Spanish PROMs was determined using a multi-lingual readability software by two readability indices: Fernández Huerta and INFLESZ.

RESULTS

The mean and standard deviation (SD) Fernández-Huerta was 75.25 (27.12) and INFLESZ was 71.25 (26.98). The average readability score per PROM in Spanish was: DI (84.19), EAT-10 (11.54), MDADI (64.92), RSI (57.22), SWAL-QoL (70.98), TVQ (87.64), VFI (99.46), VHI-10 (95.04), and VRQoL (88.28).

CONCLUSION

The mean readability of Spanish language laryngology PROMs was above the recommended reading level. Patient readability should be considered when developing laryngology PROMs translations and validations. Robust development and testing of novel PROMs are important to address the persistent, pervasive risks for Spanish speaking patients.

Swallowing dysfunction between the community-living older adults with and without comorbid conditions using Patient-Reported Outcome Measures (PROM)

OBJECTIVE

The present study aimed to investigate older adults' perspective on their swallowing physiology using a PROM tool. The study further explored the swallowing issues among older adults with and without comorbid conditions.

METHOD

One hundred twenty-two (122) participants participated in the e-survey. A questionnaire was developed to assess the swallowing deficits among older adults, and Eating Assessment Tool-10 (EAT-10) was administered to assess the PROM.

RESULTS

The results revealed that 40% of older adults with comorbid conditions had EAT-10 scores greater than 3, suggesting swallowing deficits. A significant difference was observed between the two groups with respect to swallowing deficits, as reported on EAT-10.

CONCLUSION

Based on the results, it can be delineated that swallowing deficits emerge with aging. More of older adults with comorbid conditions reported swallowing deficits in comparison to those without comorbid conditions. Hence, their nutritional and health status gets compromised, leading to poor quality of life.

The Utah Gender Presentation Scale for Communication: Development and Validation of a Measure of Voice-Related Gender Incongruence

PURPOSE

The aim of the present study was to develop and validate a patient-reported outcome measure for gender incongruence specific to voice and communication parameters, including pitch, intonation, resonance, loudness, speech smoothness, speech clarity, word choice, facial expression, gesture, and posture.

METHOD

The Utah Gender Presentation Scale for Communication (U-GPS) includes 10 items, each on a 10-point scale from masculine to feminine. Items were selected based on literature review and patient focus groups. During test administration, respondents provide their current rating and goal rating for each item. The difference between these scores is used to calculate an overall incongruence score. Prospective data from transgender and gender-diverse (n = 155) and cisgender (n = 69) individuals were then used for a multiparametric psychometric evaluation of the measure.

RESULTS

Findings demonstrate excellent levels of internal consistency (Cronbach's alpha for current scores: α = .943; Cronbach's alpha for goal scores: α = .970), test-retest reliability (intraclass correlation coefficient = .905), longitudinal validity (improvement in therapy for trans women: F = 293.0, p < .001; nonbinary folx: F = 80.9, p < .001), concurrent validity (correlation with the Trans Woman Voice Questionnaire: r = .51, p < .001), and known-group expectations (differences among five gender groups: F = 82.7, p < .001).

CONCLUSION

The U-GPS is a meaningful measure of voice-related gender incongruence, which is clinically relevant for assessing goals in gender-affirming voice and communication therapy for individuals across the gender spectrum.

Behind the Headset: Predictive Accuracy of Patient-Reported Outcome Measures for Voice Symptoms in Call Centers

Objective

This study examines factors predicting self-reported voice symptoms in call center workers.

Methods

Multivariate analysis and predictive modeling assess personal, work-related, acoustic, and behavioral factors. Generalized Linear Models (GLMs) and Receiver Operating Characteristic (ROC) curves are employed.

Results

Age and sleep patterns impacted voice quality and effort, while workplace factors influenced symptom perception. Unhealthy vocal behaviors related to tense voice and increased effort, while hydration was protective. Voice acoustics showed diagnostic potential, supported by ROC data. These findings emphasize voice symptom complexity in call center professionals, necessitating comprehensive assessment.

Limitations

This study recognizes its limitations, including a moderate-sized convenience sample and reliance on PROM metrics. Future research should incorporate more objective measures in addition to self-reports and acoustic analysis.

Value

This research provides novel insights into the interplay of personal, occupational, and voice-related factors in developing voice symptoms among call center workers. Predictive modeling enhances risk assessment and understanding of individual susceptibility to voice disorders.

Conclusion

Results show associations between various factors and self-reported voice symptoms. Protective factors include sleeping more than six hours and consistent hydration, whereas risk factors include working conditions, such as location and behaviors like smoking. Diagnostic models indicate good accuracy for some voice symptom PROMs, emphasizing the need for comprehensive models considering work factors, vocal behaviors, and acoustic parameters to understand voice issues complexity.

Do You Like Your Voice? A Population-Based Survey of Voice Satisfaction and Voice Enhancement

OBJECTIVES

Voice enhancement for patients without obvious vocal pathology or loss of function is rarely discussed clinically or in academic research. Our objectives were to: (1) determine voice satisfaction on a population level, and (2) assess willingness to consider interventions to change one's voice.

METHODS

A standardized questionnaire was created to assess current and past voice disorders. Questions assessed demographics, health status, prevalence of voice disorders, and questions regarding satisfaction with voice. Iterative survey testing and piloting were performed. A cohort with age, gender, and geographic distribution of the general adult population was then queried in an online survey. Qualitative analysis and both descriptive and multivariate statistics were performed.

RESULTS

A total of 1522 respondents were included, with an age, gender, and regional distribution reflective of the US population. A minority (38.8%) of respondents reported that they did not like the sound of their own voice in normal conversation; when asked about listening to a recording of their own voice, a majority (57.5%) reported dissatisfaction with voice. Discontent with one's voice was associated with being middle age (p = 0.005), female gender (p < 0.0001), and white race (p < 0.0001). Approximately 50.6% of respondents without a history of dysphonia would consider interventions to change their voice. Of those who indicated they may elect to change their voice, qualities regarding clarity and pitch were paramount.

CONCLUSION

Dissatisfaction with one's speaking voice is common. A considerable percentage of the general population without a voice disorder would consider interventions to change their voice.

LEVEL OF EVIDENCE

3 Laryngoscope, 133:3455-3461, 2023.

Self-perceived affective, behavioral, and cognitive reactions associated with voice use in people with Parkinson's disease: a pilot study

PURPOSE

This study aimed to compare the affective, behavioral, and cognitive reactions related to vocal function in people with Parkinson's disease (PWPD) and healthy controls using the Behavior Assessment Battery - Voice (BAB-Voice). The test's internal consistency was also described.

METHODS

31 PWPD and 19 healthy controls were recruited from September 2020 to March 2021. Participants completed four BAB-Voice subtests: Speech Situation Checklist - Emotional Reaction (SSC-ER), the Speech Situation Checklist - Speech Disruption (SSC-SD), Behavior Checklist (BCL), and Communication Attitude Test for Adults (BigCAT), describing the experienced negative emotional reaction, voice disruptions, coping behaviors, and negative attitude regarding communication respectively. Subtest scores were calculated and analyzed.

RESULTS

The scores of the PWPD were significantly different from those of the controls (Pillai's Trace = 0.344, F[4] = 5.508, p = .001, ηp2 = .344): PWPD showed more negative emotions and voice problems, more coping behaviors, and more negative speech-related attitude compared to healthy controls. All subtests showed excellent internal consistency.

CONCLUSIONS

The BAB-Voice proved a tool with a good internal consistency that measured different psychosocial reactions in PWPD versus controls. PWPD exhibited significantly more negative emotions and voice problems in specific speech situations, more coping behaviors, and a more negative speech-related attitude. The specificity of information obtained from the BAB-Voice may aid in improving the treatment planning of voice disorders in PWPD.

Psychometric Properties of the Voice Handicap Index-10 in Kannada

OBJECTIVES

This study aimed to derive the 10-item voice handicap index in the Kannada language (VHI-K10) from the existing VHI-30 in Kannada (VHI-K30). We also aimed to examine several psychometric properties of the newly derived VHI-K10, such as internal consistency, reliability, concurrent validity, discriminant validity, and diagnostic accuracy.

METHODS

Initially, VHI-K10 was derived from the existing VHI-K30 through item reduction, consistent with the recommendations for item reduction of the voice handicap index. This newly derived VHI-K10 was administered to 273 individuals (199 individuals with dysphonia and 74 individuals with normal voice quality). We also obtained phonation and reading samples from the participants. The obtained data were subjected to appropriate statistical analysis to determine several psychometric properties.

RESULTS

The newly derived VHI-K10 was found to have a strong internal consistency (Cronbach's α = 0.93). We also found strong test-retest reliability for VHI-K10, with an intraclass correlation coefficient of 0.933. There was a strong statistically significant correlation between the VHI-K10 and the existing VHI-K30 for both individuals with dysphonia (ρ = 0.924, P < 0.001) and individuals with normal voice quality (ρ = 0.798, P < 0.001). However, the correlation of VHI-K10 with the auditory-perceptual measure of GRBAS was fair (ρ = 0.353, P < 0.001) for individuals with dysphonia and was not statistically significant for individuals with normal voice quality. Further, the diagnostic accuracy of VHI-K10 was found to be excellent, with an area under the curve (AROC) value of 0.926 with a cut-off point of ≥6.5, which was slightly superior to that of VHI-K30 (AROC = 0.909, cut-off point ≥21.5).

CONCLUSIONS

The shortened 10-item version of the voice handicap index in Kannada is consistent with versions of the VHI-10 in other languages. This version of the VHI-10 in Kannada is found to be a robust tool with strong psychometric properties.

Magnitude of tuberculosis lymphadenitis, risk factors, and rifampicin resistance at Adama city, Ethiopia: a cross-sectional study

Mycobacterium tuberculosis complex has an impact on public health and is responsible for over one million deaths per year. Substantial numbers of people infected with M. tuberculosis can develop tuberculosis lymphadenitis; however, there is a limited study in Adama, Ethiopia. The aim of this study was to determine the magnitude of Tuberculosis lymphadenitis, its predictors, and rifampicin-resistance gene-positive M. tuberculosis. A total of 291 patients with enlarged lymph nodes were recruited from May 2022 to August 30 at Adama Comprehensive Specialized Hospital Medical College (ACSHMC). GeneXpert, Ziehl-Neelsen staining, and cytology were used for the diagnosis of TB lymphadenitis from the Fine Needle Aspirate (FNA) specimen. Rifampicin-resistant gene was detected using GeneXpert. For data entry and analysis, Epi Data version 3.0 and SPSS version 25 were used respectively. A binary logistic regression model was used to identify predictors of TB lymphadenitis. A p < 0.05 with a 95% confidence interval (CI) was taken as a cut point to determine the significant association between dependent and independent variables. The prevalence of TB lymphadenitis using GeneXpert, Ziehl-Neelsen staining, and cytology were 138 (47.4%) (95% CI 41.70-53.10), 100 (34.4%) (95% CI 28.94-39.85), and 123 (42.3%) (95% CI 36.63-47.00) respectively. Nine (3.1%) participants were infected with rifampicin-resistant gene-positive M. tuberculosis. Out of the total M. tuberculosis detected by GeneXpert (n = 138), 9 (6.5%) were positive for rifampicin resistance-gene. Participants with a chronic cough had 2 times odds of developing TB lymphadenitis (AOR: 2.001, 95% CI 1.142-3.508). Close to half of patients with enlarged lymph nodes were positive for M. tuberculosis by the GeneXpert method in the study area. Chronic cough was significantly associated with TB lymphadenitis. Rifampicin-resistant gene-positive M. tuberculosis was relatively prevalent among patients with enlarged lymph node in the study area.

The Vocal Priorities of College Students With and Without Self-Reported Voice Problems

OBJECTIVES/HYPOTHESIS

To determine if the Vocal Priorities Questionnaire (VPQ) could be used in people who were not seeking treatment for a voice problem. To determine if the VPQ could be used to compare groups based on self-reported voice problems. To determine if vocal priorities (loudness, clarity, pitch, pitch range) vary based on self-reported voice problems.

STUDY DESIGN

Prospective cross-sectional study.

METHODS

An online survey that contained demographic questions, questions about self-reported voice problems, and the VPQ was distributed to undergraduate university students. Confirmatory factor analyses (CFA) and exploratory factor analysis (EFA) were completed to determine if the VPQ was appropriate for use in this population. Invariance testing determined if the VPQ could be used to compare groups. Cronbach's alpha determined internal consistency. An analysis of variance was conducted to compare the scores for each vocal priority across three self-reported voice problem categories: never, current, and past.

RESULTS

Responses from 285 participants were analyzed. An initial CFA found that the four-priority VPQ originally proposed did not have adequate fit indices. An EFA and modified CFA revealed that four priorities were still present, but "not having a gravelly voice" fit better with the priority of pitch, not clarity. With this model, invariance was verified and Cronbach's alpha indicated internal consistency. Loudness was the top vocal priority for 34.8%. In those with a past voice problem, clarity was scored higher compared to those with a current voice problem, F(2, 284) = 5.298, P = 0.006, and pitch range was scored higher compared to those who had never experienced a voice problem, F(2, 284) = 5.431, P = 0.005.

CONCLUSIONS

A modified four-priority version of the VPQ presented with acceptable dimensionality and invariance for college students with and without self-reported voice problems. Scores for clarity and pitch range were influenced by experiences with voice problems.

Validation of the Czech Version of the Voice Handicap Index

OBJECTIVE(S)

The present study aims to evaluate the reliability and construct validity of the Czech version of the Voice Handicap Index (VHI-CZ) and determine the cut-off value to distinguish dysphonic patients from nondysphonic individuals.

STUDY DESIGN

Prospective study, Parallel group design.

METHODS

The study investigated 100 adult patients with dysphonia, divided into three groups based on the etiology of the voice problem (neurogenic, functional, and structural). Out of these, 25 patients were used for test-retest analysis, and 45 patients to determine the responsiveness to change. The control group consisted of 51 healthy subjects. All 151 individuals completed the VHI-CZ and were examined with the videolaryngostroboscopy. The internal consistency (Cronbach's alpha), the test-retest reliability (Intra-class Correlation Coefficient, ICC), and the construct validity were analyzed and the normative cut-off value was determined.

RESULTS

The internal consistency of the VHI-CZ was excellent (Cronbach α = 0.984), and test-retest reliability was also excellent (ICC = 0.95, P < 0.001). The correlation between the self-assessed severity of the voice disorder and the VHI-CZ score was strong (Spearman's ρ = 0.877, P < 0.001). The VHI scores differences between dysphonic and nondysphonic patients were statistically significant (Mann-Whitney U test, P < 0.001). The differences among the three etiological subgroups (neurogenic, functional, and structural) were also statistically significant (Kruskal-Wallis test, P < 0.001). Moreover, the differences in the VHI-CZ total scores between pretreatment and posttreatment were statistically significant (Wilcoxon test, P < 0.001). The cut-off score of 13 points was found, by the analysis of the Receiver Operating Characteristic (ROC, Youden Index), to be most suitable for preselecting dysphonic individuals.

CONCLUSION

The existing VHI-CZ showed excellent reliability and construct validity. The Czech VHI is a useful and valid monitoring tool for clinicians.

Exploring Patient's Preference of Patient-Reported Outcome Measures in Laryngeal Movement Disorders

BACKGROUND

Despite many available patient-reported outcome measures (PROMs) for laryngeal movement disorders, there is a lack of patient input regarding which PROM most accurately and conveniently captures aspects related to their vocal disease. This study aimed to assess patients' preferences among a selection of voice-related PROMs (Voice Handicap Index-10 [VHI-10], OMNI-Vocal Effort Scale [OMNI-VES], Communicative Participation Item Bank-General Short Form [CPIB-10], and Visual Analog Scales [VAS]) within the laryngeal movement disorder population and investigate associations between selected instruments.

METHODS

Prior to botulinum toxin A injection, patients with laryngeal dystonia and/or essential tremor of the vocal tract were administered the VHI-10, OMNI-VES, CPIB-10, and three novel VAS questions in a randomized order. Patients rank ordered the four PROMs based on the PROMs' reflection of their voice problems. Pearson's correlation coefficients evaluated pairwise associations among PROM scores. Fisher's exact test compared the preferred PROM rankings.

RESULTS

Seventy patients (53 female, mean age = 60.7 years) participated. The VHI-10 and CPIB-10 were most preferred at 33.9% and 27.4% respectively. The OMNI-VES and VAS scales were less favored (19.4%, each). When analyzed by age ≥60 years, the CPIB-10 was most favored (33.3%), but for age <60 years, VHI-10 was most preferred (42.3%). There was a strong correlation between scores of all administered PROMs (strongest correlation between OMNI-VES and VAS, r = 0.8, p < 0.001; the weakest correlation between OMNI-VES and VHI-10, r = 0.6, p < 0.001).

CONCLUSIONS

With an increasing trend in PROMs usage and a strong correlation between all evaluated outcome instruments, insight regarding patients' PROM preferences is an area for further consideration.

LEVEL OF EVIDENCE

NA Laryngoscope, 133:1448-1454, 2023.

A mixed-method feasibility study of the use of the Complete Vocal Technique (CVT), a pedagogic method to improve the voice and vocal function in singers and actors, in the treatment of patients with muscle tension dysphonia: a study protocol

BACKGROUND

Muscle tension dysphonia (MTD) results from inefficient or ineffective voice production and is the cause of voice and throat complaints in up to 40% of patients presenting with hoarseness. Standard treatment is voice therapy (SLT-VT) delivered by specialist speech therapists in voice disorders (SLT-V). The Complete Vocal Technique (CVT) is a structured, pedagogic method which helps healthy singers and other performers optimise their vocal function enabling them to produce any sound required. The aim of this feasibility study is to investigate whether CVT administered by a trained, non-clinical CVT practitioner (CVT-P) can be applied to patients with MTD before progressing to a pilot randomised control study of CVT voice therapy (CVT-VT) versus SLT-VT.

METHODS/DESIGN

In this feasibility study, we use a mixed-method, single-arm, prospective cohort design. The primary aim is to demonstrate whether CVT-VT can improve the voice and vocal function in patients with MTD in a pilot study using multidimensional assessment methods. Secondary aims are to assess whether (1) a CVT-VT study is feasible to perform; (2) is acceptable to patients, the CVT-P and SLT-VTs; and (3) whether CVT-VT differs from existing SLT-VT techniques. A minimum of 10 consecutive patients with a clinical diagnosis of primary MTD (types I-III) will be recruited over a 6-month period. Up to 6 video sessions of CVT-VT will be delivered by a CVT-P using a video link. The primary outcome will be a change in pre-/post-therapy scores of a self-reported patient questionnaire (Voice Handicap Index (VHI)). Secondary outcomes include changes in throat symptoms (Vocal Tract Discomfort Scale), acoustic/electroglottographic and auditory-perceptual measures of voice. Acceptability of the CVT-VT will be assessed prospectively, concurrently and retrospectively both quantitatively and qualitatively. Differences from SLT-VT will be assessed by performing a deductive thematic analysis of CVT-P transcripts of therapy sessions.

CONCLUSION

This feasibility study will provide important data to support whether to proceed with a randomised controlled pilot study focusing on the effectiveness of the intervention compared to standard SLT-VT. Progression criteria will be based on demonstrating a positive outcome in treatment, successful delivery of the pilot study protocol, acceptability to all stakeholders and satisfactory recruitment rates.

TRIAL REGISTRATION

ClinicalTrials.gov website ( NCT05365126 Unique Protocol ID: 19ET004). Registered on 06 May 2022.

Validation of the Polish Version of Voice Handicap Index-10

PURPOSE

The aim of this study was to adapt and evaluate the psychometric properties of the Polish version of the VHI-10.

METHODS

We enrolled 183 subjects-118 patients with voice disorders and 65 without voice disorders.

RESULTS

All items were correlated with each other and were strongly correlated with the total score (rho ≥ 0.70), the only exception being item five (rho = 0.56). Internal consistency was very high, with Cronbach's alpha = 0.92. There was a statistically significant difference between patients with voice disorders and healthy controls in terms of VHI-10 global score (U = 251.0; P < 0.001). There was a statistically significant negative correlation between mean phonation time (MPT) and VHI-10 (rho = -0.30; P < 0.01). Only the amplitude perturbation quotient (APQ) was correlated positively with the global score (rho = 0.22; P = 0.020). There were statistically significant and positive correlations between VHI-10 scores and GRBAS evaluation. Correlations between global scores of VHI-30 and VHI-10, and between VHI-30 subscales and the corresponding items from VHI-10, were very strong (respectively 0.97 and 0.89-0.94). In the patient group, there was high test-retest reproducibility (intraclass correlation = 0.91). A cut-off value of 8.5 points was estimated.

CONCLUSION

The Polish version of VHI-10 showed excellent internal consistency, good test-retest reproducibility, and had clinical validity. It is a useful brief tool for self-reported evaluation and reliable assessment of patients with voice disorders.

Modifying the Communicative Participation Item Bank (CPIB) for individuals receiving gender-affirming communication care: Stakeholder feedback from cognitive interviews

INTRODUCTION

The Communicative Participation Item Bank (CPIB) is a person-reported outcome measure designed for adults with communication disorders. The CPIB has not been validated for use with clients seeking gender-affirming communication care. The purpose of this study was to determine modifications needed to the CPIB for it to be appropriate for transgender respondents.

METHODS

Individual qualitative cognitive interviews were conducted with 14 transgender adults (seven assigned male at birth, six assigned female at birth, one intersex / assigned female at birth). As participants completed the CPIB, they were asked to 'think out loud' to share their reactions to the items, reasons for their item responses, and any recommendations for changing the CPIB. Interviews were recorded, transcribed, and analyzed to identify common and salient trends in participants' feedback.

RESULTS

The most salient change participants required was in the CPIB item stem. The original stem ("Does your condition interfere with….") is inappropriate for transgender clients because referring to being transgender as a 'condition' is unacceptable. A new stem ("How difficult is it for you to ….") was acceptable to participants. The original CPIB uses the phrase 'family and friends' to refer to safe and comfortable communication partners. Participants in this study reported that this does not reflect the experiences of many transgender people who are not accepted by their biological families. The recommended alternate wording is "people who know you well." The items reflected situations that were relevant to participants, and wording was acceptable with few exceptions. Participants suggested they would have responded to the CPIB items differently earlier in their transition, with their scores improving over time.

CONCLUSIONS

The original CPIB questionnaire should not be used with transgender clients due to unacceptable wording. The modified items generated from this study require psychometric calibration for a new CPIB version for clients seeking gender-affirming communication care.

The Significant Influence of Hoarseness Levels in Connected Speech on the Voice-Related Disability Evaluated Using Voice Handicap Index-10

OBJECTIVES

This retrospective study examines the influence of voice quality in connected speech (CS) and sustained vowels (SV) on the voice-related disability in patients' daily living documented by Voice Handicap Index-10 (VHI-10).

METHODS

A total of 500 voice recordings of CS and SV samples from 338 patients with voice disturbances were included, along with the patients' age, diagnoses, maximum phonation time, and VHI-10. Dataset-1 comprised of 338 untreated patients, whereas Dataset-2 included 162 patients before and after phonosurgeries. As a preliminary study, the concurrent and diagnostic validities based on auditory-perceptual judgments were examined for cepstral peak prominence (CPP) and CPP smoothed (CPPS) for CS and SV tasks. Next, simple correlations and multivariate regression analyses (MRA) were performed to identify which of the acoustic measures for the CS or SV tasks significantly influenced the total score or improvement of VHI-10.

RESULTS

The preliminary study confirmed high correlations with hoarseness levels as well as the excellent diagnostic accuracy of CPP and CPPS for both CS and SV tasks. In Dataset-1, the simple correlations and MRA results showed that cepstral measures in both tasks demonstrated moderate correlations with, and significant contribution to the total score of VHI-10, respectively. However, in Dataset-2, the changes of cepstral measures, as well as the median pitch after phonosurgeries in the CS tasks only, showed significant contributions to the improvement of VHI-10.

CONCLUSION

The study demonstrated that the hoarseness levels in both the CS and SV tasks equivalently influenced the VHI-10 scores, and that the post-surgical change of voice quality only in the CS tasks influenced the improvement of voice-related disability in daily living.

Menopausal Voice-Related Work Limitation Scale (MenoVWL): Development and Validation

OBJECTIVES

Menopause has been reported to affect the voice of female professional voice users (FPVUs). The present study aims at the development and validation of a scale to measure self-perceived menopausal voice-related limitation to work in FPVUs, henceforth the Menopausal Voice-Related Work Limitation Scale (MenoVWL).

METHODS

Items were drawn from previous studies on impacts of sex steroid hormones on voice, available validated scales, and in-depth interviews with post-menopausal FPVUs. A preliminary version with 16 items was evaluated by a panel of 15 voice experts. The resulting revised version was filled in online, together with questions on current endocrinological reproductive status and related symptoms, history of amenorrhea, professional occupation, and demographic information. Responses concerning only professional voice users were selected and inclusive and exclusive criteria were applied for correct allocation of participants into pre- and post-menopausal stages within a restrict age range;192 responses were subject to factorial analysis for MenoVWL validation. Cronbach's alpha measured internal reliability. The scale was tested by comparing MenoVWL scores between pre- and post-menopausal FPVUs (98 and 94, respectively).

RESULTS

Thirteen items were retained from the expert panel evaluation. Items presented a high Content Validity Index (.94 out of 1) and high Item Acceptance Ratio (86.25 %). Both exploratory and confirmatory factorial analysis rendered one dimension scale with an excellent internal consistency (Cronbach's alpha = .9). The results of a Mann-Whitney test showed a higher MenoVWL score for post- as compared to pre-menopausal FPVUs (Z = - 2.818; P = .005).

CONCLUSIONS

MenoVWL is a comprehensive and validated scale with a known factor structure. It constitutes a health care and safety outcome self-perceived measure of value to the early detection of voice-related limitations to work in FPVUs during menopause.

Voice Related Coping in Professional Voice Users-A Systematic Review

OBJECTIVES

This systematic review explored coping with voice problems in professional voice users. The objectives were to: 1) evaluate how voice-related coping is assessed in professional voice users 2) investigate how they cope with voice problems, and 3) identify factors associated with voice-related coping.

DESIGN

Systematic review.

METHODS

A systematic literature search of ten electronic databases using both EBSCOhost and OVID online platforms was conducted following the Preferred Reporting Items for Systematic Reviews (PRISMA) guidelines. Only peer-reviewed articles which assessed coping in the context of voice problems in professional voice users were included. Methodological quality was assessed using Johanna-Briggs Institute Critical Appraisal checklists. Data analysis was conducted using narrative synthesis.

RESULTS

Following deduplication, abstract and full-text screening, seven articles were included in the review. All participants (n=2484) were teachers; no other professional voice users were covered. 98% of the cases studied were females. The tools used to assess voice-related coping were Utrecht Coping List (UCL) and Voice Disability Coping Questionnaire (VDCQ). Studies which used UCL reported a passive coping pattern in teachers with high vocal handicap whereas VDCQ showed increased use of social support. Factors associated with coping were not examined by any of the studies.

CONCLUSION

Seeking social support was highlighted as a frequently used coping strategy across studies and measures. Teachers with high vocal handicap used a passive coping pattern and active coping styles were not significantly used. Current evidence does not sufficiently specify factors affecting coping in professional voice users. More research on voice-related coping involving all professional voice users is warranted to identify associated factors and further ascertain its influence on vocal health.

Multicenter Development and Validation of the Vocal Cord Paralysis Experience (CoPE), a Patient-Reported Outcome Measure for Unilateral Vocal Fold Paralysis-Specific Disability

Importance

Unilateral vocal fold paralysis (UVFP) is a common and life-changing complication of cancer, trauma, and an estimated 500 000 head, neck, and chest surgeries performed annually in the US, among other causes (eg, idiopathic). Consequent disabilities are profound and often permanent and can include severe voice, swallowing, and breathing dysfunction and concomitant anxiety, isolation, and fear. Physiological measures often correlate poorly with patient-reported disability. The measure described herein was designed to be a comprehensive, psychometrically sound UVFP-specific patient-reported outcome measure (PROM) for use in clinical trials or at point of care.

Objective

To evaluate the reliability and validity of the CoPE (vocal Cord Paralysis Experience) PROM in a nationally representative sample for both clinical and research use.

Design, Setting, and Participants

This survey validation study was performed at 34 tertiary care centers across the US and included English-speaking adults with unilateral vocal fold immobility confirmed via laryngoscopy.

Main Outcomes and Measures

Reliability (internal consistency, alternate form, and test-retest) and validity (convergent and known-group).

Results

In total, 613 patients (mean [SD] age, 58 [15.3] years; 394 [64.5%] women) were recruited, and 555 (92.3%) completed surveys for all time points. Internal consistency was high in the overall 22-item PROM and psychosocial, swallow, and voice subscales (Cronbach α > 0.91). Intraclass correlations for individuals between the baseline and 2-week administrations were moderate for the overall score and subscales (intraclass correlations range, 0.66-0.80). There were significant differences between the online and 2-week paper administrations for the overall score and voice and psychosocial subscales (overall scale mean: 54.4 [95% CI, 49.7-59.1] vs 48.9 [95% CI, 43.7-54.0] at 2 weeks). The confirmatory model was found to be suitably fitted based on average r2 values 0.5 or greater for subscale and overall scores. Correlations between subscales and existing PROMs (Voice-Related Quality of Life, Eating Assessment Tool, and Communication Participation Item Bank) were all greater than 0.69, and mean PROM subscale scores were significantly different across known quartiles of existing PROMs.

Conclusions and Relevance

The findings of this survey validation study suggest that the CoPE PROM could serve as a psychometrically sound, comprehensive measure of UVFP-attributed disability suitable for use in clinical and research settings to assess within-person changes. The results will inform a user manual to facilitate use in clinical trials comparing the effectiveness and durability of treatments including behavioral (speech therapy), temporary (eg, injection augmentation), and permanent surgical treatments for UVFP.

Development of a core measurement set for research in degenerative cervical myelopathy: a study protocol (AO Spine RECODE-DCM CMS)

INTRODUCTION

Progress in degenerative cervical myelopathy (DCM) is hindered by inconsistent measurement and reporting. This impedes data aggregation and outcome comparison across studies. This limitation can be reversed by developing a core measurement set (CMS) for DCM research. Previously, the AO Spine Research Objectives and Common Data Elements for DCM (AO Spine RECODE-DCM) defined 'what' should be measured in DCM: the next step of this initiative is to determine 'how' to measure these features. This protocol outlines the steps necessary for the development of a CMS for DCM research and audit.

METHODS AND ANALYSIS

The CMS will be developed in accordance with the guidance developed by the Core Outcome Measures in Effectiveness Trials and the Consensus-based Standards for the selection of health Measurement Instruments. The process involves five phases. In phase 1, the steering committee agreed on the constructs to be measured by sourcing consensus definitions from patients, professionals and the literature. In phases 2 and 3, systematic reviews were conducted to identify tools for each construct and aggregate their evidence. Constructs with and without tools were identified, and scoping reviews were conducted for constructs without tools. Evidence on measurement properties, as well as on timing of assessments, are currently being aggregated. These will be presented in phase 4: a consensus meeting where a multi-disciplinary panel of experts will select the instruments that will form the CMS. Following selection, guidance on the implementation of the CMS will be developed and disseminated (phase 5). A preliminary CMS review scheduled at 4 years from release.

ETHICS AND DISSEMINATION

Ethical approval was obtained from the University of Cambridge (HBREC2019.14). Dissemination strategies will include peer-reviewed scientific publications; conference presentations; podcasts; the identification of AO Spine RECODE-DCM ambassadors; and engagement with relevant journals, funders and the DCM community.

Telepractice Considerations for Evaluation and Treatment of Voice Disorders: Tailoring to Specific Populations

PURPOSE

The aim of this clinical focus article is to provide recommendations for implementation of telepractice services for the evaluation and treatment of voice disorders and to use case examples to highlight the advantages of this modality of service delivery.

METHOD

In this clinical focus article, key factors for successful telepractice evaluation and treatment of voice and related disorders are discussed relative to clinical outcome measures. Case examples of telepractice voice therapy are described for a pediatric, transgender, and chronic cough client including associated acoustic, auditory-perceptual, and quality-of-life treatment outcomes.

RESULTS

Acoustic, perceptual, and quality-of-life outcome measures demonstrated functional voice improvements after treatment using the telepractice modality. The pediatric client showed decreased perceptual voice strain and increased speech intelligibility. The transgender client showed increased habitual speaking fundamental frequency (pitch) and quality of life. The chronic cough client showed improved vocal hygiene and reduced cough severity.

CONCLUSIONS

A review of the literature shows comparable outcomes for in-person and telepractice voice therapy, but special considerations must be made to ensure therapeutic success. We present three representative types of voice cases that illustrate implementation of voice evaluation and treatment using the telepractice modality. In all three cases, the clients' personal therapeutic goals were achieved without needing to travel to the clinic. Furthermore, asynchronous practice opportunities were found to be positive byproducts of using the telepractice modality.

Clinical outcome measures and their evidence base in degenerative cervical myelopathy: a systematic review to inform a core measurement set (AO Spine RECODE-DCM)

OBJECTIVES

To evaluate the measurement properties of outcome measures currently used in the assessment of degenerative cervical myelopathy (DCM) for clinical research.

DESIGN

Systematic review DATA SOURCES: MEDLINE and EMBASE were searched through 4 August 2020.

ELIGIBILITY CRITERIA

Primary clinical research published in English and whose primary purpose was to evaluate the measurement properties or clinically important differences of instruments used in DCM.

DATA EXTRACTION AND SYNTHESIS

Psychometric properties and clinically important differences were both extracted from each study, assessed for risk of bias and presented in accordance with the Consensus-based Standards for the selection of health Measurement Instruments criteria.

RESULTS

Twenty-nine outcome instruments were identified from 52 studies published between 1999 and 2020. They measured neuromuscular function (16 instruments), life impact (five instruments), pain (five instruments) and radiological scoring (five instruments). No instrument had evaluations for all 10 measurement properties and <50% had assessments for all three domains (ie, reliability, validity and responsiveness). There was a paucity of high-quality evidence. Notably, there were no studies that reported on structural validity and no high-quality evidence that discussed content validity. In this context, we identified nine instruments that are interpretable by clinicians: the arm and neck pain scores; the 12-item and 36-item short form health surveys; the Japanese Orthopaedic Association (JOA) score, modified JOA and JOA Cervical Myelopathy Evaluation Questionnaire; the neck disability index; and the visual analogue scale for pain. These include six scores with barriers to application and one score with insufficient criterion and construct validity.

CONCLUSIONS

This review aggregates studies evaluating outcome measures used to assess patients with DCM. Overall, there is a need for a set of agreed tools to measure outcomes in DCM. These findings will be used to inform the development of a core measurement set as part of AO Spine RECODE-DCM.

Progression of Self-Perceived Speech and Swallowing Impairment in Early Stage Parkinson's Disease: Longitudinal Analysis of the Unified Parkinson's Disease Rating Scale

PURPOSE

The purpose of this study was to investigate the presence and progression of self-perceived speech and swallowing impairments in newly diagnosed people with Parkinson's disease (PD) longitudinally across 6 years.

METHOD

Longitudinal data from the Parkinson's Progression Markers Initiative were analyzed across six consecutive years in a cohort of 269 newly diagnosed people with PD, and a subset of those (n = 211) who were assessed at every time point across the 6 years. Dependent variables included self-perceived ratings of speech and swallowing impairment severity from the Unified Parkinson's Disease Rating Scale. Patient-centered factors of age at diagnosis and motor phenotype were also assessed to determine if they were related to the change in self-perceived speech and swallowing impairments.

RESULTS

Overall, self-perceived speech and swallowing impairments were present in newly diagnosed people with PD, although over time, the degree of severity for both remained in the mild range. However, the rate of change over time was significant for perceived speech impairment, F(5.5, 1158.8) = 21.1, p < .001), and perceived swallowing impairment, F(5.2, 1082.6) = 8.6, p < .001. Changes for speech and swallowing impairment were both in the direction of progressive severity. There were no effects of age at diagnosis or motor phenotype on the degree of change for either speech or swallowing.

CONCLUSIONS

Self-perceptions of speech and swallowing impairment changed significantly over time in newly diagnosed people with PD (PWPD). Consistent with existing literature, self-perceptions of speech impairment were rated as more severe than those of swallowing impairment. These findings reveal that even in the early years postdiagnoses, PWPD are experiencing changes to speech and swallowing function, albeit within the mildly severe range. The presence of self-perceived mild speech and swallowing impairments in the initial years postdiagnosis may support the need for intervention to improve and or sustain function over time.

Development, Validation, and Reliability of the Teacher-Reported Pediatric Voice Handicap Index

PURPOSE

The purpose of this study was to develop a novel teacher-reported pediatric voice outcome measure and to investigate its psychometric properties.

METHOD

In the first stage, a new instrument, the Teacher-Reported Pediatric Voice Handicap Index (TRPVHI), was developed. After item generation, a panel of experts evaluated the items to assess the content validity. Subsequently, the final version of the preliminary instrument was applied to teachers of 306 children (57 dysphonic and 249 vocally healthy) between the ages of 4 and 11 years. Eventually, the construct validity, criterion-related validity, test-retest reliability, and internal consistency of the developed instrument were examined.

RESULTS

The items with a content validity ratio less than .8 were modified or removed, and accordingly, the preliminary version of the index was finalized. After the application of the preliminary version, item reduction was made based on the factor analysis. The index is composed of 27 questions and three subscales: Functional, Physical, and Emotional. A significant difference was observed between the dysphonic and vocally healthy children for the TRPVHI scores (p < .001). A positive moderate correlation was determined between the Pediatric Voice Handicap Index and TRPVHI scores. Correlation coefficients between the test and retest scores of the TRPVHI were in the range of .92-.98. Cronbach's alpha values computed to assess the internal consistency were in the range of .94-.98.

CONCLUSIONS

The TRPVHI is the only valid and reliable teacher-reported outcome measure of the effects of voice disorders on children. It is anticipated that the deployment of the TRPVHI in conjunction with other subjective tools, both in the initial evaluation and the follow-up of the treatment results, will allow a better understanding of the physical, functional, and emotional effects of voice disorders on children. Furthermore, it can potentially lead further research to enable the use of the TRPVHI for screening purposes.

Linguistic Relevance and Applicability of the Spanish VHI-10 in a Population Outside Spain

INTRODUCTION

The Voice Handicap Index 10 (VHI-10) has been translated to many languages. There are substantial differences between the translation methods. Translated questionnaires without appropriate linguistic validation may not capture cultural differences or be understood by the participants in the manner intended by the original developers. This also holds true between dialects within a language. There are two versions of the VHI-10 in Spanish, both translated in Spain. Considering the cultural and dialectical differences amongst Spanish speakers, it is hypothesized that these translations may not be applicable globally. The purpose of this study was to determine the linguistic relevance and applicability of the currently available versions of the VHI-10 in Spanish amongst Spanish speakers outside of Spain.

METHODS

This study used mixed methods qualitative and quantitative procedures consisting of semi-structured interviews and quantitative analysis of data. Sixty-nine participants met the inclusion criteria. Participants with and without a diagnosis of dysphonia were included. Demographic data collected included age, gender, cultural/dialectical background, level of education, and number of years residing in Southern California. Participants were provided the currently available translated versions of the VHI-10 in Spanish (V1 and V2). After reading both questionnaires, a semi-structured interview was conducted by a bilingual SLP. Semi-structured interview responses were coded to determine patterns of words marked as problematic/not understood or non-representative of the Spanish dialect spoken by the participants.

RESULTS

The majority of participants marked at least one word in both versions as problematic/not understood or non-representative of the Spanish dialect spoken (60/69, 87.0% for V1 and 63/69, 92.3%, for V2). The two words most frequently marked as problematic/not understood or non-representative of the Spanish dialect spoken were "hándicap" (marked by 51/69 participants, 73.9%) and "minusvalía" (marked by 52/69 participants, 75.4%).

CONCLUSIONS

Data analysis demonstrates that the majority of participants marked words as not understood/non-representative of their dialect on either V1 or V2. One question not understood or not answered could have an impact on how we interpret this PRO measure in clinical practice. Use of currently available Spanish translations of the VHI-10 may yield unreliable results when used amongst Spanish speakers outside Spain due to dialectal and cultural differences. Future work will include validation of a voice patient-reported outcome (PRO) measure that is culturally and linguistically appropriate for Spanish speakers outside Spain.

Perceptions regarding communicative participation in individuals receiving botulinum toxin injections for laryngeal dystonia

BACKGROUND

Laryngeal dystonia (LD), or spasmodic dysphonia (SD), is a neurological disorder characterized by focal dystonia or involuntary spasms of the laryngeal muscles and associated voice symptoms. It is typically treated with injection of botulinum toxin (BoNT) that weakens the affected muscles.

AIMS

The primary purpose of this qualitative study was to explore participants' experience of living with LD and BoNT treatment. The secondary purpose was to examine those experiences as a function of participants' scores on the Communicative Participation Item Bank (CPIB). Results will enhance our understanding of restrictions in communicative participation, assist in planning intervention targeting these restrictions and aid in clinical interpretation of CPIB scores.

METHODS & PROCEDURES

Semi-structured interviews using a phenomenological tradition and focusing on BoNT treatment and communicative participation were conducted with 26 people with LD who are on established BoNT treatment regimens. Interviews were recorded, transcribed, coded and analysed inductively. Participants were categorized by CPIB scores into groups ranging from none to extensive participation restrictions. Both self- and expert ratings of voice were obtained.

OUTCOMES & RESULTS

Participants with different levels of CPIB scores had different experiences related to communicative participation in the context of BoNT treatment. These differences were organized into the following topics: BoNT and voice; attitudes toward participation; coping strategies; and advice. For all participants except those in the least restricted and most restricted groups, expert ratings of voice did not relate to CPIB scores.

CONCLUSIONS & IMPLICATIONS

Although most participants report improved voice with BoNT treatment, many participants experienced lingering restrictions in communicative participation, some to a severe extent. Participants reported coping with these restrictions in many ways; some of these strategies were more successful than others. Those with restricted participation recommended more support for daily life and the emotional toll of LD, as well as support for family members. This support might be offered by speech-language pathologists.

WHAT THIS PAPER ADDS

What is already known on the subject Participants with different levels of CPIB scores had different experiences related to communicative participation in the context of BoNT treatment. What this study adds to the existing knowledge Although most participants report improved voice with BoNT treatment, many participants experienced lingering restrictions in communicative participation, some to a severe extent. What are the potential or actual clinical implications of this work? SLP services that take a participation-focused approach to intervention and use multi-factorial approaches to help clients maximize their life participation in the context of LD are well within the SLP scope of practice. SLPs can help clients find and use their optimal voices within the constraints of the dystonia and BoNT effects.

Sensitivity of the Communicative Participation Item Bank for Measuring Patient-Reported Outcomes After Treatment of Unilateral Vocal Fold Immobility

Importance

The Communicative Participation Item Bank (CPIB) is a patient-reported outcome measure assessing the association between communication disorders and participation in daily communication. To our knowledge, no prior research has examined whether CPIB scores change after treatment of unilateral vocal fold immobility (UVFI).

Objective

To compare CPIB scores before and after treatment of UVFI and with patient-defined target treatment outcomes and other common clinical outcomes after UVFI intervention.

Design, Setting, and Participants

This single-group case series recruited a convenience sample of community-dwelling patients aged 18 years or older from an urban academic medical center who had a diagnosis of UVFI and planned to receive intervention for UVFI. The study was conducted from March 2014 to March 2019.

Exposures

Intervention for UVFI according to clinicians' recommendations. The treatment type was not controlled for this study.

Main Outcomes and Measures

Patients' self-reported communicative participation was assessed by obtaining CPIB scores before and after treatment of UVFI, with scores calibrated to the standardized T scale. Pearson correlations between the CPIB general short form and computerized adaptive format, the Voice Handicap Index-10 (VHI-10), and self-rated and clinician-rated voice severity were also evaluated.

Results

The sample included 25 participants, of whom 17 (68%) were male, 8 (32%) were female, and the mean (SD) age was 54.9 (17.0) years. Significant changes after treatment were observed in all quantitative outcomes including the primary outcome of the CPIB; the mean T score before treatment was 40.95 (95% CI, 37.49-44.41) and after treatment was 53.23 (95% CI, 48.41-58.04) (mean difference, -13.04 [95% CI, -7.30 to -18.79]; Cohen d, 0.96). The Pearson correlation between the CPIB general short form and computerized adaptive testing scores at pretreatment was r = 0.93 and at posttreatment, r = 0.95. Computerized adaptive testing showed efficiency advantages, with typically 5 to 6 items required for administration compared with 10 items for the short form. The correlation between the CPIB and VHI-10 was moderate before treatment (r = -0.70) and strong after treatment (r = -0.91). Moderate correlations were observed between the CPIB and clinician-rated voice quality before (r = -0.52) and after (r = -0.46) treatment and between CPIB and self-rated voice quality before (r = -0.56) and after (r = -0.62) treatment.

Conclusions and Relevance

The results of this case series suggest that the CPIB is relevant for clinical use to assess changes in communicative participation among patients with UVFI before and after they receive treatment.

Readability of Commonly Used Patient-Reported Outcome Measures in Laryngology

OBJECTIVES

Patient-reported outcome measures (PROMs) are used to evaluate patients' symptoms and clinical improvement after an intervention. Advocacy efforts and increased provider awareness regarding health literacy have helped to improve the readability of PROMs. Recent studies in otolaryngology in rhinology, pediatric otolaryngology, and head and neck reported PROM readability scores above the sixth-grade level. However, there is limited data regarding the readability of laryngology PROMs. Thus, this study aims to report the readability levels of PROMs in laryngology by assessing different readability indices and describing the relationship of readability levels to equitable healthcare.

METHODS

This is a bibliometric study that received approval from institutional review board (IRB) review as a nonhuman subject research study. Recent and widely utilized laryngology PROMs were selected from a publicly available literature search by reviewing laryngology systematic reviews, PubMed, and Google Scholar. Laryngology PROMs were selected from voice, dysphagia, airway, and other PROMs including voice questionnaires administered to patients seeking gender affirming voice care from systematic reviews and expert opinion. There were 37 PROMs included in this study. PROMs were analyzed via Gunning Fog, Simple Measure of Gobbledygook (SMOG), FORCAST, and Flesch Reading Ease Score.

RESULTS

All laryngology PROMs had readabilities above the recommended sixth-grade level. The mean and standard deviation (SD) of Gunning Fog was 7.30 (2.59), SMOG was 8.70 (1.51), FORCAST was 10.05 (1.51), and Flesch Reading Ease Score was 8.08 (2.76).

CONCLUSION

Laryngology PROMs are above the recommended middle school reading level. To further promote health equity, readability should be considered when developing future PROMs.

LEVEL OF EVIDENCE

N/A Laryngoscope, 2021.

Voice-related quality of life: Relation to objective spirometry measures in subglottic stenosis

OBJECTIVES

The current study seeks to identify the correlation between in-office spirometry data and voice-related quality of life in patients with subglottic stenosis (SGS).

METHODS

Patients with SGS of any etiology were included when in-office spirometric data was available in addition to voice-related patient-reported outcomes (PROM) data in the form of the Voice Handicap Index-10 (VHI-10) and/or the Voice-Related Quality of Life (V-RQOL) survey. Overall survey scores and individual question responses were assessed for degree of correlation to spirometric data.

RESULTS

Twenty-nine patients were included in the final analysis. Overall mean total VHI-10 scores totaled 7.15 (SD 9.11), while mean overall V-RQOL scores totaled 78.41 (SD 16.45). Both PEF and PIF rates correlated to total scores on the VHI and V-RQOL surveys. This correlation was stronger with PIF than with PEF, and with the V-RQOL than with the VHI. Questions related to breathlessness most closely correlated with spirometric data.

CONCLUSION

Voice-related QOL is impacted in patients with SGS in a predictable way. Breathlessness while speaking may be more impactful than inability to produce speech in this population.

Autologous Lipoaugmentation Long-Term Clinical Outcomes: A Systematic Review

OBJECTIVES/HYPOTHESIS

Vocal fold (VF) lipoaugmentation can be employed to treat glottal insufficiency although variable data exist on its length of effectiveness. We aimed to review published long-term outcomes following lipoaugmentation across the literature and compile outcome data.

STUDY DESIGN

Systematic review.

METHODS

A systematic search in September 2020 of PubMed, MEDLINE, Cochrane Library, and Web of Science used the Preferred Reporting Items for Systematic Review and Meta-Analyses guidelines to identify 128 relevant articles related to VF lipoaugmentation effectiveness duration. Primary search terms included the following: vocal cord, fat, lipo, and atrophy. Forty-eight full-text articles were reviewed and 31 were included in the final analysis. Primary endpoints included the following: duration of effectiveness per patient-reported outcome measures, objective findings, and additional procedures performed. In addition, fat harvest location and processing techniques were recorded.

FINDINGS

Thirty-one studies totaling 764 patients were included in the review. Indications for augmentation were VF paralysis (N = 690) and atrophy (N = 74). Fat was harvested from the abdominal region in 21 studies (529 patients), the thigh/abdomen in 5 studies (91 patients), and buccal/submental region in 2 studies (33 patients). Processing techniques and injectable volume varied. Across included studies, only 11 of 764 patients (1.4%) reported no improvement in voice and/or swallowing. Within the first year, 71 of 608 patients (11.7%) reported a regression toward baseline. Beyond 1 year and up to 8 years, 27 of 214 patients (12.6%) reported regression from initial improvement. Thirty-three patients underwent additional procedures.

CONCLUSION

Although improvements in voice and swallowing after lipoaugmentation taper over time, most patients experienced long-term benefit. Laryngoscope, 2021.

The Mandarin Voice Handicap Index for Laryngectomees With Pneumatic Artificial Laryngeal and Esophageal Speech

Purpose The Voice Handicap Index (VHI) questionnaire assesses the impact of total laryngectomy on voice-related quality of life. This study evaluates the Mandarin VHI, including its internal consistency, test-retest reliability, content validity, and differences in scores for Mandarin alaryngeal patients with pneumatic artificial laryngeal (PA) and esophageal (ES) speech. Method Translation and validation of the VHI questionnaire was performed through the forward-backward translation technique. This study used a sample of 78 PA and 23 ES participants from Taiwan who completed the Mandarin VHI. Forty-two of the alaryngeal participants completed the Mandarin VHI twice over a period of 7-63 days. Results The measurement of the internal consistency of the Mandarin VHI showed a high Cronbach's alpha coefficient for the total score (.975) and the functional (.930), physical (.939), and emotional (.938) subscales. Based on the results of the intraclass correlation coefficients, good test-retest reliability for the total and domain scores was found (intraclass correlation coefficient = .827-.863). Conclusion The Mandarin VHI was validated as an instrument with proper internal consistency and reliability, which supports the Mandarin VHI as a valid instrument for the self-evaluation of handicaps related to voice problems in PA and ES speakers.

The Communicative Participation Item Bank: Evaluating, and Reevaluating, Its Use across Communication Disorders in Adults

Patient-reported outcomes (PROs) are essential in patient-centered, evidence-based practice in speech-language pathology. PROs respect individuals who live with communication disorders as key stakeholders providing a critically unique perspective on consequences of communication disorders, and whether interventions bring about meaningful changes. Some PROs focus on specific communication symptoms such as voice or language symptom severity, while others focus on broader constructs such as quality of life. Many PROs target specific diagnostic groups. This article presents the Communicative Participation Item Bank (CPIB), a PRO that measures communicative participation restrictions. The CPIB was based on the concept of participation, or engagement in life situations, as defined in the World Health Organization's International Classification of Functioning, Disability, and Health. It was designed to be relevant for adults across different communication disorders to facilitate clinical and research activities that may involve either comparing or aggregating data across communication disorders. The CPIB follows current PRO development protocols including systematic guidance from stakeholders through cognitive interviews, and the measurement methods of Item Response Theory that allow precise and adaptive assessment. This article reviews use of the CPIB across different diagnostic groups, and identifies needs for future efforts to expand the relevance of the CPIB further.