ArticleHealth and quality of life outcomes2014
Confirmatory factor analysis of the thyroid-related quality of life questionnaire ThyPRO.
Article in Health and quality of life outcomes, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.
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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
22 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Thyroid disease-specific quality of life questionnaires - A systematic review.Endocrinology, diabetes & metabolism · 2022Pooled it
- Evidence-Based Use of Levothyroxine/Liothyronine Combinations in Treating Hypothyroidism: A Consensus Document.Thyroid : official journal of the American Thyroid Association · 2021Guideline
- The Impact of Post-Thyroidectomy Neck Stretching Exercises on Neck Discomfort, Pressure Symptoms, Voice and Quality of Life: A Randomized Controlled Trial.World journal of surgery · 2022Trial
- The compensatory enlargement of the remaining thyroid lobe following hemithyroidectomy is small and without impact on symptom relief.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 · 2018Trial
- Development and Validation of the Chinese Family Resilience Scale in Families in Hong Kong.International journal of environmental research and public health · 2023Article
- Designing a combined liothyronine (LT3), L- thyroxine (LT4) trial in symptomatic hypothyroid subjects on LT4 - the importance of patient selection, choice of LT3 and trial design.Frontiers in endocrinology · 2023Review
- When 'good' is not good enough: a retrospective Rasch analysis study of the Berg Balance Scale for persons with Multiple Sclerosis.Frontiers in neurology · 2023Article
- Primary hypothyroidism and quality of life.Nature reviews. Endocrinology · 2022Review
- Validity and reliability of the German version of the shortened thyroid-specific quality of life questionnaire (ThyPRO-39de).Endocrine connections · 2021Article
- Determining minimal important change for the thyroid-related quality of life questionnaire ThyPRO.Endocrine connections · 2021Article
- Evidence-Based Use of Levothyroxine/Liothyronine Combinations in Treating Hypothyroidism: A Consensus Document.European thyroid journal · 2021Article
- Levothyroxine Therapy in Elderly Patients With Hypothyroidism.Frontiers in endocrinology · 2021Review
- Proposal for Standardization of Primary and Secondary Outcomes in Patients with Active, Moderate-to-Severe Graves' Orbitopathy.European thyroid journal · 2020Article
- Psychometric properties of the Chinese Version of the Readiness for Hospital Discharge Scale for people living with HIV.International journal of nursing sciences · 2020Article
- Design of the Optimal Trial of Combination Therapy.Frontiers in endocrinology · 2020Article
- Exploring the item sets of the Recovering Quality of Life (ReQoL) measures using factor analysis.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2019Article
- The Impact of Esophageal Compression on Goiter Symptoms before and after Thyroid Surgery.European thyroid journal · 2019Article
- Changes in Swallowing Symptoms and Esophageal Motility After Thyroid Surgery: A Prospective Cohort Study.World journal of surgery · 2018Article
- Conversion of standard retrospective patient-reported outcomes to momentary versions: cognitive interviewing reveals varying degrees of momentary compatibility.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2018Article
- Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimThyroid diseases are prevalent and chronic. With treatment, quality of life is restored in most, but not all patients. Construct validity of the thyroid-related quality of life questionnaire, ThyPRO, has been established by multi-trait scaling, but not evaluated with more elaborate methods. The purpose of the present study was to evaluate dimensionality of the ThyPRO scales and to attempt to understand possible item misfit through structural equation modeling for categorical data.
methodsThe current 85-item version of ThyPRO consists of 13 scales, covering domains of physical (4 scales) and mental (2 scales) symptoms, function and well-being (3 scales) and participation/social function (4 scales). The data were collected from a cross-sectional sample of 907 thyroid patients. One-factor confirmatory models were fitted to each scale, and evaluated by model fit statistics (comparative fit index >0.95, root mean square error of approximation <0.08), magnitude of factor loadings, model residual correlations and modification indices (MI). Indications of multi-dimensionality were tested in bi-factor models. Possible item misfit was evaluated in a combined, investigational model.
resultsEach ThyPRO scale was adequately represented by a unidimensional model after minor revisions. Eleven items were identified in the unidimensional models as potentially misfitting and were investigated further by multidimensional modeling.
conclusionElaborate psychometric modeling supported the construct validity of the ThyPRO. However, 11 potentially misfitting items and 18 items with local dependence to other items are candidates for removal in future item reduction processes.
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