TEST-RETEST RELIABILITY OF UKRAINIAN VERSION OF THE HAEMO-QOL QUESTIONNAIRE

Andriy Markin, Leonid Dubey

Abstract


Background: Today psychometric characteristics of Ukrainian version of the questionnaire Haemo-QoL remain researched insufficiently. This publication describes the procedure and results of the test-retest reliability of this questionnaire in children with hemophilia A.

Objectives: Study the test-retest reliability of the Ukrainian version of the Haemo-QoL questionnaire for assessing the health-related quality of life (HRQoL) in children with hemophilia A, and determine the possibility of its use in practical and theoretical medicine in terms of time reliability.

Methods. The quality of life assessment (QoLA) was performed using the correspondence method, by interviewing 32 children with hemophilia A (self-report) and 32 parents of the children (proxy-report). The questioning was conducted twice at intervals of 4–6 weeks (primary test and re-test). The Haemo-QoL questionnaire version of age group I (4–7 years old), II (8–12 years old) or age group III (13–16 years) was used to measure the quality of life in children with hemophilia; and three versions were used for parents of children of corresponding age groups. These interviews were analyzed, the correlation between the data of primary test and re-test was determined using Spearman's rho, Pearson correlation coefficients, Wilcoxon’s W criterion, Cohen's d effect size was determined for separate comparisons.

Results: HRQoL indices are not statistically different between tests on all scales (p>0.05), except for the “Family” and “Others” scales (p<0.05). Total HRQoL is statistically different (p=0.0013), however, with a median difference of 0.25 only and an average absolute difference variability of 1.67±1.51 (5.42±2.83 %). Total HRQoL in parent versions did not change statistically, unlike the children’s versions, but the difference between the tests was only 1.32 and Cohen’s d ES - 0.08. For versions Ip, IIp, IIIc/p there was no statistical difference, the versions Ic and II statistically differed (p=0.038; t=–2.39 and p=0.0022; t=–3.98, respectively) with a mean difference of 2.0 and 1.6, respectively.

Conclusion: The Ukrainian version of the Haemo-QoL questionnaire has sufficient test-retest reliability for quantitative dynamic reflection HRQoL in patients with hemophilia A.


Keywords


hemophilia; health-related quality of life; Haemo-QoL; test-retest reliability; psychometric analysis; questionnaire

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References


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DOI: http://dx.doi.org/10.21303/2504-5679.2018.00645

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