期刊
DISABILITY AND REHABILITATION
卷 45, 期 8, 页码 1412-1418出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09638288.2022.2060340
关键词
Multiple sclerosis; health-related quality of life; patient outcome assessments; Turkish; Turkey
The PBMSI was translated into Turkish and its psychometric properties were evaluated. The study found that the Turkish version of PBMSI has good psychometric properties, and the PBMSI-SG is preferred over the PBMSI-RS.
Purpose To translate Preference-Based Multiple Sclerosis Index (PBMSI) into Turkish, investigate its psychometric properties and differences between its two scoring algorithms: PBMSI-Rating Scale (PBMSI-RS) and PBMSI-Standard Gamble (PBMSI-SG). Methods An expert committee supervised the translation process. Psychometric properties were evaluated in 104 people with multiple sclerosis. Exploratory common factor analysis was used to investigate structural validity. Convergent validity was assessed by formulating hypotheses about correlations between PBMSI and other HRQL measures, disability level, walking-related measures, and MS symptoms. Known-groups validity was assessed against different measures of disability and walking capacity. Test-retest reliability was assessed by calculating the intraclass correlation coefficient (ICC), standard error of measurement (SEM), and minimal detectable change (MDC95%). Results Factor analysis revealed one factor (Eigenvalue = 2.46). PBMSI-RS and PBMSI-SG correlated significantly with other measures (p < .001). Both could differentiate between individuals with different levels of disability and walking capacity (p < .05, d >= 0.50). Relative test-retest reliability was moderate for PBMSI-RS (ICC = 0.75) and good for PBMSI-SG (ICC = 0.83). SEM and MDC95% values were 0.16 and 0.44 for PBMSI-RS and 0.10 and 0.28 for PBMSI-SG, respectively. Conclusion Turkish version of PBMSI has good psychometric properties to assess health-related quality of life in people with multiple sclerosis. PBMSI-SG should be preferred over PBMSI-RS.
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