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- W4224023075 abstract "Abstract Background: Due to more limited capability to function in daily life post injury, survivors need to be reliably assessed without extra commute. The key action is to determine the level of functioning difficulties. Having the opportunity of conducting a national post-crash traffic safety and health cohort study, we aimed to translate and assess the psychometric properties of the World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) through phone surveys six month post injury. Methods: First, having World Health Organization permission, we tested the translation validity by forward translation, expert panel, back-translation, pre-testing and cognitive interviewing, and finalizing the Persian WHODAS. Then, the psychometric study on a national cohort platform assessed the validity, reliability and applicability of 12-item WHODAS through phone surveys. We included data of 255 road traffic injury patients enrolled from the cohort study at six-month follow-up. The psychometric assessment (internal consistency reliability and stability reliability) was conducted on test-retest data of 50 patients with a 7-day time span averagely. An exploratory factor analysis tested the construct validity using extraction method of principal component factor and oblique rotation on 255 patients’ data. Regarding the multiple criteria, scree test, and factors with eigenvalues greater than 0.9 determined the number of factors retained. Data were analyzed using software STATA statistical package. Results: The respondents were mostly male (81%) with mean age (SD) of 37.7(14.9), employed (71%) and educated (87%). The Persian version had high internal consistency reliability (Cronbach’s α=0.93) and excellent stability reliability (ICC=0.97, 95% CI: 0.92-0.98). An exploratory factor analysis retained four factors defining 86% of all variance. Factors of Self-care, Mobility, and Cognition were completely retained.Conclusions: The translated brief WHODAS 2.0 was highly reliable, valid and responsive to be applied through phone interviews post injury." @default.
- W4224023075 created "2022-04-19" @default.
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- W4224023075 date "2022-04-13" @default.
- W4224023075 modified "2023-09-27" @default.
- W4224023075 title "Psychometric properties of 12-item WHODAS applied through phone survey: An experience in post-crash cohort study" @default.
- W4224023075 doi "https://doi.org/10.21203/rs.3.rs-1532154/v1" @default.
- W4224023075 hasPublicationYear "2022" @default.
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