ArticleDysphagia2018
Validation and Psychometric Properties of the German Version of the SWAL-QOL.
Article in Dysphagia, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.
- Pooled it
- Oral Transport, Penetration, and Aspiration in PD: Insights from a RCT on STN + SNr Stimulation.Dysphagia · 2025Trial
- Development and validation of the dysarthria impact scale: a patient-reported outcome for motor speech disorders.Journal of neurology · 2026Article
- Analysis of a Modified Version of the Inventory of Non-Ataxia Signs Over 12 Years in Patients with Friedreich's Ataxia in the EFACTS Study.Movement disorders : official journal of the Movement Disorder Society · 2026Article
- Psychometric Properties of the Spanish Version of the Swallowing Quality of Life Questionnaire in Fibromyalgia Patients.Healthcare (Basel, Switzerland) · 2025Article
- Reliability and Validity of the Chinese Mandarin Version of the Dysphagia Handicap Index.Dysphagia · 2025Article
- Cross-Cultural Adaptation, Translation and Validation of Kannada Version of the Swallowing Quality of Life Questionnaire (KSWAL-QOL).Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2024Article
- Review
- Translation, Cultural Adaptation, Reliability, and Validity Evidence of the Feeding/Swallowing Impact Survey (FS-IS) to Brazilian Portuguese.Dysphagia · 2022Article
- Article
- Assessment of Bulbar Function in Adult Patients with 5q-SMA Type 2 and 3 under Treatment with Nusinersen.Brain sciences · 2021Article
- Reliability and Validity of the Chinese Mandarin Version of the Swallowing Quality of Life Questionnaire.Dysphagia · 2021Article
- The presence of dysphagia in patients with cerebellar ataxia, neuropathy and vestibular areflexia syndrome (CANVAS): a subjective and objective study.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2021Article
- Review
- Quality of care in dysphagia patients: adaptation and validation of the Swedish SWAL-CARE questionnaire.Health and quality of life outcomes · 2020Article
- Cultural adaptation and validation of the Norwegian version of the swallowing quality of life questionnaire (SWAL-QOL).Health and quality of life outcomes · 2019Article
- Coordination and timing deficits in speech and swallowing in autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS).Journal of neurology · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
Abstract
The SWAL-QOL questionnaire is a common tool for evaluating patients' dysphagia-specific quality of life. A validated German version is not available. This study aimed to establish a German version of the SWAL-QOL (G-SWAL-QOL) using a standardized translation procedure and to systematically evaluate its psychometric properties. The original SWAL-QOL was translated into German following international translation guidelines. A pilot study (45 subjects) confirmed comprehensibility of the G-SWAL-QOL. A consecutive series of 158 subjects (103 patients with dysphagia; 55 healthy controls) was then recruited to assess validity and reliability of the G-SWAL-QOL. Construct validity was analyzed through a correlation analysis with both (i) the Anderson Dysphagia Inventory (ADI-D) and (ii) the Short Form 36 (SF-36). Internal consistency and test-retest reliability were evaluated to determine reliability. All questions of the G-SWAL-QOL were comprehensible, except one which was subsequently revised. Construct validity of the G-SWAL-QOL was demonstrated by moderate to high correlations with the ADI-D (Spearman's rho 0.36 - 0.88). The G-SWAL-QOL was able to differentiate between patients with dysphagia and healthy controls (p < 0.001) and was sensitive to disease severity measured by different food textures. Reliability of the G-SWAL-QOL was good to excellent for both internal consistency (Cronbach's α > 0.7 for all domains, except eating desire [α = 0.69]) and test-retest reliability (Spearman's rho ≥ 0.68 for all domains; ICC > 0.8 for all domains). The G-SWAL-QOL is a valid and reliable measuring tool for dysphagia-specific quality of life in German-speaking persons.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.