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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Quality of life measurement in women with cervical cancer: implications for Chinese cervical cancer survivors | Las Hayas et al. Health and Quality of Life Outcomes 2010 8 29 http www.hqlo.eom content 8 1 29 HEALTH AND QUALITY of life outcomes RESEARCH Open Access Use of rasch methodology to develop a short version of the Health Related Quality of life for Eating Disorders questionnaire a prospective study 1 1 2 3 4 Cariota Las Hayas Jose M Quintana Jesus A Padierna Amaia Bilbao Pedro Munoz Abstract Background To confirm the internal structure of the Health Related Quality of Life for Eating Disorders version 2 questionnaire HeRQoLEDv2 and create and validate a shortened version HeRQoLED-S . Methods 324 patients with eating disorders were assessed at baseline and one year later 75.6 of whom responded . We performed a confirmatory factor analysis of the HeRQoLEDv2 using baseline data and then a Rasch analysis to shorten the questionnaire. Data obtained at year one was used to confirm the structure of the HeRQoLED short form and evaluate its validity and reliability. Results Two latent second-order factors - social maladjustment and mental health and functionality - fit the data for the HeRQoLEDv2. Rasch analysis was computed separately for the two latent second-order factors and shortened the HeRQoLEDv2 to 20 items. Infit and outfit indices were acceptable with the confirmatory factor analysis of the HeRQoLED short form giving a root mean square error of approximation of 0.07 a non-normed fit index and a comparative fit index exceeding 0.90. The validity was also supported by the correlation with the convergent measures the social maladjustment factor correlated 0.82 with the dieting concern factor of the Eating Attitudes Test-26 and the mental health and functionality factor correlated -0.69 with the mental summary component of the Short Form-12. Cronbach alphas exceeded 0.89. Conclusions Two main factors social maladjustment and mental health and functionality explain the majority of HeRQoLEDv2 scores. The shortened version maintains good psychometric properties though it .
