Cultural Adaptation and Validation of Questionnaires for Evaluation of Health-Related Quality of Life with Dysphagia in Different Countries: A Systematic Review

Reliability and Validity of the Chinese Mandarin Version of the Dysphagia Handicap Index

This study aimed to develop the Dysphagia Handicap Index-Chinese Mandarin (DHI-CM) and to assess its reliability and validity. This prospective study was conducted in China with individuals who speak Mandarin. The DHI-CM was developed according to a five-stage process. 264 patients with oropharyngeal dysphagia (OD) and 187 healthy individuals completed the study. Reliability was assessed using Cronbach's α and test-retest reliability. Differences between healthy participants and patients with OD were analyzed for instrument validity. Convergent and concurrent validity were assessed using the Swallowing Quality of Life Questionnaire (SWAL-QoL) and Functional Oral Intake Scale (FOIS), respectively. The Content Validity Index (CVI) was used to assess content validity. Exploratory and Confirmatory Factor Analyses (EFA and CFA, respectively) were used to assess structural validity. The Cronbach's alpha was > 0.9 for the total score and every individual subscale. The Pearson and intraclass correlation coefficients were both > 0.8. The patients with OD showed significantly higher scores in the DHI-CM and its subscales than the healthy individuals. Significant correlations were found between most subscales of the DHI-CM and both the SWAL-QoL and FOIS. The CVI of the DHI-CM was 0.892 and ranged between 0.878 and 1.000 for the subscales. The EFA identified three components that explained 24.33%, 23.99%, and 22.73% of the variance, respectively. The scale showed good structural validity through CFA. Conclusions. The DHI-CM demonstrated good reliability and validity among Mandarin-speaking Chinese adults.

Prevalence of Self-Reported Swallowing Difficulties and Swallowing-Related Quality of Life Among Community-Dwelling Older Adults in India

Self-reported swallowing difficulties are highly prevalent but underreported among older adults. The aging population in India is increasing, yet there is a lack of empirical data on self-reported swallowing difficulties in older adults. In the present study, we aimed to estimate the prevalence of self-reported swallowing difficulties and assess the swallowing-related quality of life (QOL) among community-dwelling older adults in India. We recruited 361 older adults (60-91 years) from the community. Participants completed the Eating Assessment Tool-10 (EAT-10) to assess self-reported swallowing difficulties and the Dysphagia Handicap Index (DHI) to assess swallowing-related QOL. Participants rated the EAT-10 from 0 for 'no problem' to 4 for 'severe problem'. The DHI rating included 0 for 'never', 2 for 'sometimes', and 4 for 'always'. The total scores of EAT-10 and DHI were summarised using descriptive statistics. Statistically significant differences between pass-fail groups of EAT-10 and DHI were evaluated using an independent t-test and multivariate analysis of variance test, respectively. The overall mean score for EAT-10 was 3.34, and 7.56 for DHI, with higher scores observed among females. 36.6% of older adults self-reported experiencing swallowing difficulties, while 47.4% self-reported having poor swallowing-related QOL at p < 0.05. A strong positive correlation (r = 0.86) was found between EAT-10 and total DHI scores at p < 0.001. The present study sheds light on the widespread yet underreported issue of self-reported swallowing difficulties and the impact on swallowing-related QOL among older adults in India. These findings emphasize the urgent need for early swallowing screening programs among older adults.

Head and Neck Cancer Survivors' Assessment of Mealtimes: Translation and Validation : Assessment and Rehabilitation of Dysphagia in Head and Neck Cancer Patients

Dysphagia is a prevalent complication before, during and after treatment for head and neck cancer (HNC). Besides the medical and societal consequences, dysphagia has a negative impact on functioning, activity, participation and quality of life. These aspects are all affected by the environmental factors (EF). However, patient-reported outcome measures (PROMS) such as the Head-and-Neck Cancer Survivors' Assessment of Mealtimes (HNSAM), which thoroughly assess participation and EF in addition to function and activity, are rare. Therefore, this study aimed to translate and validate the HNSAM into Dutch (D-HNSAM). The HNSAM was translated according to the standardized procedure of translation & back-translation and according to the international cross-cultural adaptation process. A pilot study was then conducted with 10 HNC patients to assess the linguistic features and comprehensibility of the test items. Finally, the D-HNSAM was completed by 50 participants who were at least 6 months post-treatment for HNC. The Performance Status Scale for Head and Neck cancer patients (PSS-HN)- subscales normalcy of diet and eating in public, the Dysphagia Handicap Index (DHI), the Functional Oral Intake scale (FOIS) and the Utrecht Scale for Evaluation of Rehabilitation-Participation (USER-P) were used to examine the psychometric properties of the D-HNSAM. High correlations with related assessment tools and low correlations with unrelated assessment tools were expected. Internal consistency was found to be weak to good. Test-retest reliability, convergent validity and divergent validity were demonstrated except for the EF subscale. The D-HNSAM can detect differences in impact of dysphagia on daily functioning and quality of life. The D-HNSAM is a reliable and clinically valuable PROM for assessing the impact of dysphagia on daily functioning and quality of life in patients with HNC. The unique aspect of this PROM, the subscale EF, has unfortunately weak psychometric properties and requires further refinement.

Nutritional Status, Dietary Intake, Quality of Life, and Dysphagia in Women With Fibromyalgia

BACKGROUND

Fibromyalgia syndrome (FMS) is an idiopathic chronic disease characterized by widespread musculoskeletal pain, hyperalgesia, and allodynia that has been recently associated with risk of dysphagia.

OBJECTIVE

We aimed to analyze the association between nutritional status, micro- and macronutrient intake, and quality of life (QoL) in a cohort of women with FMS and risk of dysphagia compared to women with FMS without risk of dysphagia.

METHODS

A cross-sectional study was conducted in 46 women with FMS. Risk of dysphagia was assessed by the Eating Assessment Tool (EAT-10) and the Volume-Viscosity Swallow Test (V-VST). The Food Frequency Questionnaire and the Swallowing Quality of Life Questionnaire were used to assess dietary intake and QoL, respectively.

RESULTS

Thirty women with FMS were at risk for dysphagia (65.21%), assessed by the EAT-10. Based on the V-VST, the frequency of risk of dysphagia was 63.04%. Significant differences in body mass index (BMI) were found between women at risk for dysphagia and those without risk. Women at risk for dysphagia had significantly lower overall QoL scores than those women without risk. No significant differences were found for dietary intake and dysphagia risk.

DISCUSSION

Women with FMS at risk for dysphagia have significantly lower BMI values and worse QoL than women without dysphagia risk, supporting the importance of assessing dysphagia in clinical practice in persons with FMS.

Development and Evaluation of the Psychometric Properties of the Tamil Version of Eating Assessment Tool - 10 (EAT-10): Preliminary Findings from Persons with Head and Neck Cancer

Aims: This study aimed to develop and evaluate the psychometric properties of the Tamil version of the Eating Assessment Tool (EAT-10). Setting & Study Design: Prospective cross-sectional study on persons with Head and Neck Cancer (HNC) during their follow-up for oncological and swallowing consultation at a tertiary care hospital and healthy individuals recruited from the community. Methods: The study was conducted in two phases: (1) translation and development of the Tamil version of EAT-10 and (2) administration of Tamil EAT-10 to assess internal consistency reliability, test-retest reliability and known-group validity. 92 participants with HNC in the clinical group and 149 healthy adults in the control group completed the Tamil EAT-10. In addition, a subgroup of 20 participants with HNC repeated the questionnaire within a week to assess test-retest reliability. Results: The Cronbach alpha for the 10 items was 0.96 indicating high internal consistency reliability. The test-retest reliability of the individual items and the total scores (r = 0.98) of the Tamil version of EAT-10 were high. The total EAT-10 scores for the HNC group (14.4 ± 11.5) were significantly higher (p < 0.001) than the scores for healthy adults (0.72 ± 2.0). Conclusion: The Tamil version of the EAT-10 developed in this study is a reliable and valid self-administered tool for identifying concerns related to swallowing among persons treated for HNC and healthy adults. This tool can be implemented for clinical practice and research in dysphagia among a Tamil-speaking population.

Supplementary Information

The online version contains supplementary material available at 10.1007/s12070-022-03376-8.