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Adherence to hemophilia patients with prophylaxis: Veritas-Pro and psychometric properties adapted to Turkish.

ABSTRACT: The Validated Hemophilia Regimen Treatment Adherence Scale-Prophylaxis (VERITAS-Pro) assesses adherence to prophylaxis treatment recommendations in hemophilia patients. This study aimed to adapt the VERITAS-Pro into Turkish and evaluate its reliability and validity. The research design used is a psychometric study. A convenience sample of 102 patients with hemophilia A or B was followed by the Aegean Adult Hemophilia and Thrombosis Center. The VERITAS-Pro was adapted to Turkish in six steps, including forward- and back-translation, committee review, and reliability and validity analysis. Based on the confirmatory factor analysis, modification indices suggested discrepancies amongst items, which were improved upon the removal of items 11 and 15. Findings from this alternative model are: χ2/df = 1.34; RMSEA = 0.05; SRMR = 0.09; and IFI = 0.92. The alternative model showed high adherence rates. Cronbach's alpha value for the Turkish version was found to be 0.83. The test-retest reliability of the Turkish scale ranged from 0.31 to 0.78. All items discriminated significantly between participants who were more adherent and those who were less adherent (t = 23.53; p<0.01). Translation of the VERITAS-Pro into local languages enables more accurate measurement of treatment adherence among people with hemophilia and facilitates cross-cultural comparison studies. According to the validity and reliability evidence obtained, the psychometric properties of the Turkish version of the VERITAS-Pro are suitable.

SUBMITTER: Mehrekula Demirci Z

PROVIDER: S-EPMC10411756 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

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Adherence to hemophilia patients with prophylaxis: Veritas-Pro and psychometric properties adapted to Turkish.

Mehrekula Demirci Zuhal Z Demiral Yilmaz Nilufer N Bulbul Hale H Keklik Karadag Fatma F Atilla Fatos Dilan FD Saydam Guray G Sahin Fahri F

PloS one 20230809 8

The Validated Hemophilia Regimen Treatment Adherence Scale-Prophylaxis (VERITAS-Pro) assesses adherence to prophylaxis treatment recommendations in hemophilia patients. This study aimed to adapt the VERITAS-Pro into Turkish and evaluate its reliability and validity. The research design used is a psychometric study. A convenience sample of 102 patients with hemophilia A or B was followed by the Aegean Adult Hemophilia and Thrombosis Center. The VERITAS-Pro was adapted to Turkish in six steps, inc ...[more]

PMID: 37556439

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Project description:BackgroundThere is a need for reliable and validated tools to identify, classify, and quantify vaccine-hesitancy in low and middle-income countries, such as Sudan. We evaluated the psychometric properties of an adapted version of the measles vaccine hesitancy scale by assessing its reliability, convergent validity, and criterion validity in Sudan. The vaccine hesitancy scale (VHS) was originally developed by the WHO/SAGE Working Group of Vaccine Hesitancy.MethodsA community-based survey among parents was conducted in February 2019 in Khartoum state. We conducted exploratory and confirmatory factor analysis to examine the structure of the adapted measles VHS (aMVHS). We computed Cronbach's alphas, correlations with other vaccine hesitancy measurements including the Parental Attitude towards Childhood Vaccination (PACV) and the Vaccine Confidence Index (VCI), and performed a Mann-Whitney U test for assessing the reliability and the convergent and criterion validity, respectively. Moreover, to examine whether the aMVHS can predict the child's vaccination status, the area under the curve (AUC) was estimated using receiver operator characteristic (ROC) curves.ResultsThe questionnaire was completed by 500 parents. Most were women (87.2%) between the ages of 20 and 47 (M = 31.15, SD = 5.74). The factor analyses indicated that the aMVHS comprises of two factors (sub-scales): 'confidence' and 'complacency'. The aMVHS sub-scales correlated weakly to moderately with the PACV and VCI scales. The area under the curve was 0.499 at most (P >0.05) and the aMVHS score did hardly differ between actually vaccinated and non-vaccinated children.ConclusionOur findings underscore that the aMVHS and its confidence and complacency sub-scales are reliable and have a moderately good convergent validity. However, the aMVHS has a limitation in predicting the concurrent child's vaccination status. More work is needed to revise and amend this aMVHS, particularly by additionally including the 'convenience' construct and by further evaluating its validity in other contexts.

Dataset Information

Adherence to hemophilia patients with prophylaxis: Veritas-Pro and psychometric properties adapted to Turkish.

Publications

Adherence to hemophilia patients with prophylaxis: Veritas-Pro and psychometric properties adapted to Turkish.

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