ArticlePloS one2018
Psychometric properties of the German version of the Leicester Cough Questionnaire in sarcoidosis.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.
- Patient-reported outcome measures for cough used in interstitial lung disease: a systematic review.European respiratory review : an official journal of the European Respiratory Society · 2025Pooled it
- The Symptoms of Pulmonary Sarcoidosis.Journal of clinical medicine · 2023Review
- [Sarcoidosis and berylliosis].Der Internist · 2022Review
- Psychometric properties of the German version of the Psychological Consequences of Screening Questionnaire (PCQ) for liver diseases.Frontiers in psychology · 2022Article
- FeV1 and BMI influence King's Sarcoidosis Questionnaire score in sarcoidosis patients.BMC pulmonary medicine · 2021Article
- Article
- Predictors of cough-specific and generic quality of life in sarcoidosis patients.Sarcoidosis, vasculitis, and diffuse lung diseases : official journal of WASOG · 2020Observational
Corrections and comments
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Authors and funding
9 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCough is one of the most common symptoms in general and pulmonary medicine with profound negative impact on health-related quality of life (HRQL). The Leicester Cough Questionnaire (LCQ) is a validated HRQL questionnaire, yet a validated German version of the LCQ is not available and it has never been tested in a cohort with sarcoidosis.
objectivesTo translate the LCQ into German and determine its psychometric properties.
methodsThe LCQ was translated in a forward-backward approach. Structured interviews in sarcoidosis patients were performed. Subsequently, sarcoidosis patients were asked to answer the German LCQ and comparative questionnaires. Distribution properties, item difficulty, concurrent validity, Rasch model fit and internal consistency of the German LCQ were determined.
results200 patients with sarcoidosis were included. We provide evidence for reliability, unidimensionality and internal consistency. However, only a moderate correlation with general and respiratory-specific HRQL questionnaires, no Rasch model fit could be shown. Skewed responses caused by floor effects were detected.
conclusionWe demonstrate that the German LCQ is valid and reliable and its psychometric properties fulfil the standards required for its use in clinical settings as well as in interventional trials.
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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.