ArticleWorld journal of urology2025
New evidence for content validity of the German version of the Acute Cystitis Symptom Score: cognitive interview study among patients and experts.
Article in World journal of urology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- First Randomized Controlled Trial Comparing D-Mannose to Fosfomycin in Acute Uncomplicated Lower Urinary Tract Infections.Antibiotics (Basel, Switzerland) · 2026Article
- Machine learning-based multi-class classification of bladder pathologies using fused 3D CT radiomic and 3D auto-encoder deep features.European journal of radiology open · 2026Article
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5 authors.
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Abstract
purposeThe Acute Cystitis Symptom Score (ACSS) is a clinically validated instrument to assess symptoms and quality of life in women with uncomplicated urinary tract infections (uUTIs). A previous study examining the content validity of the German version of the ACSS has shown some methodological limitations when rated against the criteria for content validity of the COnsensus-based Standards for the Selection of Health Measurement INstruments (COSMIN) initiative. Extending the existing evidence, the present study aimed to assess the content validity of the German version of the ACSS according to the criteria of the COSMIN methodology.
methodsIn individual cognitive interviews following a structured, standardized interview guide, women with a history of uUTI and experts from different medical fields rated the instructions, items, response options and recall period of the ACSS in terms of relevance, comprehensiveness and comprehensibility. Additionally, the Content Validity Index (CVI) was calculated based on expert assessments to quantify content validity.
resultsA total of 14 patients and 14 experts participated in two rounds of interviews. The overall relevance and comprehensiveness of the instrument were rated as appropriate. Modifications focused on improving comprehensibility. Ten items underwent minor modifications or were given examples to enhance comprehensibility. The scales of five items were linguistically revised. Confirming good content validity, CVI was 0.97.
conclusionsComprehensive qualitative assessments support content validity of the ACSS for evaluating symptoms and quality of life in women with uUTIs. Minor modifications addressed comprehensibility. Psychometric validation of the revised ACSS is recommended.
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