Evidence map›Paper›PMID 40382660›Full record

ArticleBMC research notes2025

Validity and reliability of the persian version of the dyspnea-12 questionnaire in assessing dyspnea among COPD patients.

Ehsan Alishapour, Mohammad Ali Nayeri, Razie Bahrami, Alireza Haghshenas, Samrad Mehrabi

Abstract readValidation Study
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC research notes, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

5 authors.

Ehsan AlishapourDepartment of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Mohammad Ali NayeriSchool of Medicine, Shiraz University of Medical Science, Shiraz, Iran.
Razie BahramiSchool for Medicine, Abadan University of Medical Science, Abadan, Iran.
Alireza HaghshenasSchool of Medicine, Shiraz University of Medical Science, Shiraz, Iran.
Samrad MehrabiDivision of Pulmonology, Department of Internal Medicine, Namazi Hospital, Shiraz University of Medical Sciences, Zand Blvd, Namazi Sq, Shiraz, Fars, Iran. mehrabis@sums.ac.ir.ORCID http://orcid.org/0000-0002-8231-7815

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveDyspnea is a distressing symptom of Chronic Obstructive Pulmonary Disease (COPD). The Dyspnea-12 questionnaire, a well-established instrument for assessing different dimensions of dyspnea validated in multiple languages, lacked a Persian version. This study aimed to adapt and validate a Persian version of Dyspnea-12.

resultsThe Persian version of Dyspnea-12 demonstrated excellent reliability (Cronbach's alpha = 0.982, Composite Reliability = 0.985). Criterion validity analysis strongly correlated with Dyspnea-12 and CAT scores (ρ = 0.698, p < 0.001). Factor analysis confirmed a single-factor structure consistent with the original version. Inter-item correlations ranged from 0.3 to 0.9. Construct validity indices indicated a satisfactory model fit (CFI = 0.904, SRMR = 0.044), though RMSEA (0.188) suggested areas for improvement. Pulmonary function analysis revealed significant associations between FEV₁ and Dyspnea-12 scores (p = 0.042) and FVC (p = 0.017), linking dyspnea severity with lung function decline.

Indexed as

DyspneaPulmonary Disease, Chronic ObstructiveAgedFactor Analysis, StatisticalFemaleHumansIranMaleMiddle AgedReproducibility of ResultsRespiratory Function TestsSeverity of Illness IndexSurveys and QuestionnairesChronic obstructive pulmonary diseaseCross-cultural comparisonDyspneaReliabilityValidation studyValidity

Identifiers

PMID40382660
PMCPMC12085038

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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Registered trials

None linked

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.