ArticlePloS one2019
Standard error of measurement and smallest detectable change of the Sarcopenia Quality of Life (SarQoL) questionnaire: An analysis of subjects from 9 validation studies.
Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06094413 (The Effects of an 8-week Multicomponent Training Program on Quality of Life, Fear of Falling, &Amp; Physical Performance in Community-Dwelling Older Adults), which is not on this map. Cited by 44 papers, 2 of them syntheses that pooled it.
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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.
The Effects of an 8-week Multicomponent Training Program on Quality of Life, Fear of Falling, &Amp; Physical Performance in Community-Dwelling Older Adults
Who cites it
44 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Psychometric Properties of the SarQoL Questionnaire: A Systematic Review and Meta-Analysis.Journal of cachexia, sarcopenia and muscle · 2025Pooled it
- Analysis of Structural Characteristics and Psychometric Properties of the SarQoLInternational journal of environmental research and public health · 2022Pooled it
- Cluster randomized trial of reablement strategies targeting sarcopenia (ReStart-S) in long-term care settings.The journals of gerontology. Series A, Biological sciences and medical sciences · 2026Trial
- Effects of Phenolic-Rich Extra Virgin Olive Oil and Prebiotics on Sarcopenia in Older Adults: FOOP-Sarc Project.Journal of cachexia, sarcopenia and muscle · 2026Trial
- Trial
- Remote Online-Based Application of the Cerebellar Cognitive Affective Syndrome Scale.Cerebellum (London, England) · 2026Article
- Validation of the German version of Infants and Toddlers Dermatology Quality of Life (InToDermQoL) Questionnaire.Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG · 2026Article
- BODY-Q-7D Measures Consensus-Based Patient-Reported Outcomes for the Management of Obesity Treatment.Obesity (Silver Spring, Md.) · 2026Article
- The Test-Retest Reliability of Non-Navigated Transcranial Magnetic Stimulation (TMS) Measures of Corticospinal Pathway Excitability in a Neurologically Intact Adult Population.Brain topography · 2026Article
- Reliability of force production based on the sense of effort at different force levels.Experimental brain research · 2026Article
- Developing and evaluating the patient's perspective of needling questionnaire for haemodialysis.Journal of patient-reported outcomes · 2026Article
- Family dermatology life quality index (F-DLQI): German validation and applicability to parents of infants and toddlers with dermatological conditions.European journal of pediatrics · 2025Article
- Polish language questionnaires for monitoring athletes' health and classifying reported symptoms.Scientific reports · 2025Article
- Influence of a multicomponent exercise intervention on fear of falling and gait parameters in community-dwelling older adults: a prospective study.BMC geriatrics · 2025Article
- Exploring Methodological Decisions for Calculating the Minimally Detectable Change in Dysarthria: Reliability, Statistics, and Standard Error of Measurement.Journal of speech, language, and hearing research : JSLHR · 2025Article
- The Role of Rehabilitation Program in Managing the Triad of Sarcopenia, Obesity, and Chronic Pain.Life (Basel, Switzerland) · 2025Article
- Discussion on the validity of commonly used reliability indices in sports medicine and exercise science: a critical review with data simulations.European journal of applied physiology · 2025Review
- Validation of the Persian version of the summary of diabetes self-care activities scale (SDSCA) in pregnant women with gestational diabetes mellitus using a COSMIN methodology.BMC endocrine disorders · 2025Article
- Optimizing selectivity of the Cerebellar Cognitive Affective Syndrome Scale by use of correction formulas, and validation of its German version.Journal of neurology · 2025Article
- Health outcomes of sarcopenia: a consensus report by the outcome working group of the Global Leadership Initiative in Sarcopenia (GLIS).Aging clinical and experimental research · 2025Review
Corrections and comments
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Authors and funding
12 authors.
Funding
Abstract
objectivesThe Sarcopenia Quality of Life (SarQoL) questionnaire, a sarcopenia-specific patient-reported outcome measure, evaluates quality of life with 55 items. It produces 7 domain scores and 1 overall quality of life score, all between 0 and 100 points. This study aims to contribute to the interpretation of the SarQoL scores by calculating the standard error of measurement (SEM) and smallest detectable change (SDC) in a sample of subjects from 9 studies.
methodsSubjects from 9 studies (conducted in Belgium, Brazil, Czech Republic, England, Greece, Lithuania, Poland and Spain) were included. The SEM, a measure of the error in the scores that is not due to true changes, was calculated by dividing the standard deviation of the difference between test and retest scores (SDdiff) by √2. The SDC, defined as change beyond measurement error, was calculated by multiplying SDdiff by 1.96. Bland-Altman plots were assessed for the presence of systematic errors.
resultsA total of 278 sarcopenic subjects, aged 77.67 ± 7.64 years and 61.5% women, were included. The SEM for the overall SarQoL score ranged from 0.18 to 4.20 points for the individual studies, and was 2.65 points when all subjects were analyzed together. The SDC for the overall score ranged from 0.49 to 11.65 points for the individual studies, and was 7.35 points for all subjects. The Bland-Altman plots revealed no systematic errors in the questionnaire.
conclusionThis study shows that, for individual subjects, a change in overall quality of life of at least 7.35 points (on a scale from 0 to 100) would have to be observed to confirm that a true change, beyond measurement error, has occurred. It also demonstrated that the SarQoL questionnaire is a precise instrument, with the observed scores within less than 3 points of the theoretical "true score".
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