ArticleWorld journal of urology2023
Psychometric validation of the Spanish version of the Expanded Prostate Cancer Index Composite-26.
Article in World journal of urology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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.
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Who cites it
4 citing papers in PubMed, 4 citations in OpenAlex.
- Integrating lifestyle and clinical data in prostate cancer: expert assessment of a questionnaire.World journal of urology · 2026Article
- Twenty-year Patient-reported Outcomes After Surgery, Radiotherapy, or Brachytherapy for Localized Prostate Cancer.European urology open science · 2025Article
- Prospective trial on focal treatment with hemigland brachytherapy in low-risk prostate cancer: A negative study.Journal of contemporary brachytherapy · 2025Article
- Patient-reported functional outcomes and treatment-related regret in Hispanic and Spanish-speaking men following prostate cancer treatment.Urologic oncology · 2025Article
Corrections and comments
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Authors and funding
15 authors at 7 institutions in 1 country.
Funding
Abstract
purposeTo assess the validity, reliability, and responsiveness of the Spanish version of the Expanded Prostate cancer Index Composite (EPIC) with 26 items.
methodsMulticentric longitudinal study of patients diagnosed with localized or locally advanced prostate cancer (any T, any N, M0) treated with active surveillance, surgery, external radiotherapy, or brachytherapy. The EPIC-50 was administered initially to the cohort (n = 324 patients), until it was replaced in November 2019 by the EPIC-26 (n = 543), in both groups before treatment and 12 months after. We assessed confirmatory factor analysis (CFA), reliability with Cronbach's alpha coefficient, criterion validity with the intraclass correlation coefficient (ICC), and responsiveness by testing a priori hypotheses on deterioration effect size (ES).
resultsThe CFA confirmed the five-domain structure of the EPIC-26 proposed by the original instrument (comparative fit index = 0.95). The agreement between EPIC-50 (gold standard) and EPIC-26 domains was excellent (ICC > 0.90). Cronbach's alpha was > 0.7 in almost all domains, and the floor effect was near zero, although ceiling effect was higher than 50% in urinary incontinence and bowel domains. Hypothesized changes between before and 12 months after treatment were confirmed: ES > 0.8 in both urinary incontinence and sexual domains among patients who underwent surgery; and ES ranging 0.44-0.48 for bowel and sexual domains in patients treated with external radiotherapy.
conclusionThe Spanish version of the EPIC-26 has demonstrated adequate metric properties, similar to those of the original version, with acceptable goodness-of-fit indices, good criterion validity, reliability, and responsiveness to detect changes after radical prostatectomy or external radiotherapy.
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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 Socratic graph.