tailieunhanh - báo cáo khoa học:" Cross-cultural validity of four quality of life scales in persons with spinal cord injury"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Cross-cultural validity of four quality of life scales in persons with spinal cord injury | Geyh et al. Health and Quality of Life Outcomes 2010 8 94 http content 8 1 94 HEALTH AND QUALITY of life outcomes RESEARCH Open Access Cross-cultural validity of four quality of life scales in persons with spinal cord injury Szilvia Geyh1 2 Bernd AG Fellinghauer1 2 3 Inge Kirchberger4 Marcel WM Post5 Abstract Background Quality of life QoL in persons with spinal cord injury SCI has been found to differ across countries. However comparability of measurement results between countries depends on the cross-cultural validity of the applied instruments. The study examined the metric quality and cross-cultural validity of the Satisfaction with Life Scale SWLS the Life Satisfaction Questionnaire LISAT-9 the Personal Well-Being Index PWI and the 5-item World Health Organization Quality of Life Assessment WHOQoL-5 across six countries in a sample of persons with spinal cord injury SCI . Methods A cross-sectional multi-centre study was conducted and the data of 243 out-patients with SCI from study centers in Australia Brazil Canada Israel South Africa and the United States were analyzed using Raschbased methods. Results The analyses showed high reliability for all 4 instruments person reliability index . . Unidimensionality of measurement was supported for the WHOQoL-5 Chi2 df 10 p .088 partially supported for the PWI Chi2 df 16 p .480 but rejected for the LISAT-9 Chi2 df 18 p .000 and the SWLS Chi2 df 10 p .000 based on overall and item-wise Chi2 tests principal components analyses and independent t-tests. The response scales showed the expected ordering for the WHOQoL-5 and the PWI but not for the other two instruments. Using differential item functioning DIF analyses potential cross-country bias was found in two items of the SWLS and the WHOQoL-5 three items of the LISAT-9 and four items of the PWI. However applying Rasch-based statistical methods especially subtest analyses it was possible to identify optimal strategies to .