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Psychometric properties and minimal important differences of SF-36 in Idiopathic Pulmonary Fibrosis

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064190%3A_____%2F19%3AN0000075" target="_blank" >RIV/00064190:_____/19:N0000075 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/00216208:11110/19:10396529

  • Výsledek na webu

    <a href="http://dx.doi.org/10.1186/s12931-019-1010-5" target="_blank" >http://dx.doi.org/10.1186/s12931-019-1010-5</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1186/s12931-019-1010-5" target="_blank" >10.1186/s12931-019-1010-5</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Psychometric properties and minimal important differences of SF-36 in Idiopathic Pulmonary Fibrosis

  • Popis výsledku v původním jazyce

    BackgroundIdiopathic pulmonary fibrosis (IPF) is a rare disease with a median survival of 3-5years after diagnosis with limited treatment options. The aim of this study is to assess the psychometric characteristics of the Short Form 36 Health Status Questionnaire (SF-36) in IPF and to provide disease specific minimally important differences (MID).MethodsData source was the European IPF Registry (eurIPFreg). The psychometric properties of the SF-36 version 2 were evaluated based on objective clinical measures as well as subjective perception. We analysed acceptance, feasibility, discrimination ability, construct and criterion validity, responsiveness and test-retest-reliability. MIDs were estimated via distribution and anchor-based approaches.ResultsThe study population included 258 individuals (73.3% male; mean age 67.3years, SD 10.7). Of them 75.2% (194 individuals) had no missing item. The distribution of several items was skewed, although floor effect was acceptable. Physical component score (PCS) correlated significantly and moderately with several anchors, whereas the correlations of mental component score (MCS) and anchors were only small. The tests showed mainly significant lower HRQL in individuals with long-term oxygen therapy. Analyses in stable individuals did not show significant changes of HRQL except for one dimension and anchor. Individuals with relevant changes of the health status based on the anchors had significant changes in all SF-36 dimensions and summary scales except for the dimension PAIN. PCS and MCS had mean MIDs of five and six, respectively. Mean MIDs of the dimensions ranged from seven to 21.ConclusionIt seems that the SF-36 is a valid instrument to measure HRQL in IPF and so can be used in RCTs or individual monitoring of disease. Nevertheless, the additional evaluation of longitudinal aspects and MIDs can be recommended to further analyse these factors. Our findings have a great potential impact on the evaluation of IPF patients.Trial registrationThe eurIPFreg and eurIPFbank are listed in https://clinicaltrials.gov (NCT02951416).

  • Název v anglickém jazyce

    Psychometric properties and minimal important differences of SF-36 in Idiopathic Pulmonary Fibrosis

  • Popis výsledku anglicky

    BackgroundIdiopathic pulmonary fibrosis (IPF) is a rare disease with a median survival of 3-5years after diagnosis with limited treatment options. The aim of this study is to assess the psychometric characteristics of the Short Form 36 Health Status Questionnaire (SF-36) in IPF and to provide disease specific minimally important differences (MID).MethodsData source was the European IPF Registry (eurIPFreg). The psychometric properties of the SF-36 version 2 were evaluated based on objective clinical measures as well as subjective perception. We analysed acceptance, feasibility, discrimination ability, construct and criterion validity, responsiveness and test-retest-reliability. MIDs were estimated via distribution and anchor-based approaches.ResultsThe study population included 258 individuals (73.3% male; mean age 67.3years, SD 10.7). Of them 75.2% (194 individuals) had no missing item. The distribution of several items was skewed, although floor effect was acceptable. Physical component score (PCS) correlated significantly and moderately with several anchors, whereas the correlations of mental component score (MCS) and anchors were only small. The tests showed mainly significant lower HRQL in individuals with long-term oxygen therapy. Analyses in stable individuals did not show significant changes of HRQL except for one dimension and anchor. Individuals with relevant changes of the health status based on the anchors had significant changes in all SF-36 dimensions and summary scales except for the dimension PAIN. PCS and MCS had mean MIDs of five and six, respectively. Mean MIDs of the dimensions ranged from seven to 21.ConclusionIt seems that the SF-36 is a valid instrument to measure HRQL in IPF and so can be used in RCTs or individual monitoring of disease. Nevertheless, the additional evaluation of longitudinal aspects and MIDs can be recommended to further analyse these factors. Our findings have a great potential impact on the evaluation of IPF patients.Trial registrationThe eurIPFreg and eurIPFbank are listed in https://clinicaltrials.gov (NCT02951416).

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    30203 - Respiratory systems

Návaznosti výsledku

  • Projekt

  • Návaznosti

    N - Vyzkumna aktivita podporovana z neverejnych zdroju

Ostatní

  • Rok uplatnění

    2019

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    RESPIRATORY RESEARCH

  • ISSN

    1465-993X

  • e-ISSN

    1465-9921

  • Svazek periodika

    20

  • Číslo periodika v rámci svazku

    1

  • Stát vydavatele periodika

    GB - Spojené království Velké Británie a Severního Irska

  • Počet stran výsledku

    11

  • Strana od-do

    Article Number: 47

  • Kód UT WoS článku

    000460213400001

  • EID výsledku v databázi Scopus

    2-s2.0-85064504556