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Japanese version of the international PROMs "Vail Hip Score": Reliability, validity, and responsiveness according to the COSMIN checklist.
Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association 2018 November 10
BACKGROUND: This study aimed to develop a Japanese version of the international PROMs "Vail Hip Score (Vail10)" and to establish its reliability, validity, and responsiveness with COSMIN check-list.
METHODS: The study was conducted from March 2016 to October 2017 and included 46 patients totaling 47 joints. Disorders included 30 cases of FAI (55%), 13 cases of DDH (28%), and 4 others (8%). We administered an identical set of PROMs (5 measures: Japanese-version iHOT12 (pilot draft), Japanese-version Vail10, Japanese-version Oxford Hip Score, JHEQ, and SF36) twice in these subjects. We determined interclass correlation coefficients for the first and second round [ICC(1,2)], as well as the Cronbach α coefficient for patient responses to each of the 10 items in Vail10. In addition, we determined Spearman rank correlation coefficients of Vail10, OHS, JHEQ, satisfaction VAS, the 8 subscales of SF36, and the 3 QOL summary scores.
RESULTS: ICC for the total score of all 10 items in Vail10 was 0.96. Cronbach α coefficient was 0.96. Bland-Altman plot analysis showed a solid agreement. Regarding the validity, Spearman rank correlation coefficients, only satisfaction VAS, and SF36 subscales of PF and BP had r > 0.45 (p < 0.01 in both administration rounds). The SDC (1.32) was smaller than the MIC (8.14).
CONCLUSIONS: After developing the Japanese version of Vail10, we examined its Reliability, validity, and responsiveness by administering the measure to patients with acetabular labral tear. Correlations were strong and demonstrated the efficacy of the Japanese version of Vail10.
METHODS: The study was conducted from March 2016 to October 2017 and included 46 patients totaling 47 joints. Disorders included 30 cases of FAI (55%), 13 cases of DDH (28%), and 4 others (8%). We administered an identical set of PROMs (5 measures: Japanese-version iHOT12 (pilot draft), Japanese-version Vail10, Japanese-version Oxford Hip Score, JHEQ, and SF36) twice in these subjects. We determined interclass correlation coefficients for the first and second round [ICC(1,2)], as well as the Cronbach α coefficient for patient responses to each of the 10 items in Vail10. In addition, we determined Spearman rank correlation coefficients of Vail10, OHS, JHEQ, satisfaction VAS, the 8 subscales of SF36, and the 3 QOL summary scores.
RESULTS: ICC for the total score of all 10 items in Vail10 was 0.96. Cronbach α coefficient was 0.96. Bland-Altman plot analysis showed a solid agreement. Regarding the validity, Spearman rank correlation coefficients, only satisfaction VAS, and SF36 subscales of PF and BP had r > 0.45 (p < 0.01 in both administration rounds). The SDC (1.32) was smaller than the MIC (8.14).
CONCLUSIONS: After developing the Japanese version of Vail10, we examined its Reliability, validity, and responsiveness by administering the measure to patients with acetabular labral tear. Correlations were strong and demonstrated the efficacy of the Japanese version of Vail10.
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