Translation and validation of the Nepean Dyspepsia Index for functional dyspepsia in China  

作　　者：Xiao-Ping Tian Ying Li Fan-Rong Liang Guo-Jie Sun Jie Yan Xiao-Rong Chang Ting-Ting Ma Shu-Yuan Yu Xu-Guang Yang 

机构地区：[1]Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan Province, China [2]Hubei College of Traditional Chinese Medicine, Wuhan 430065, Hubei Province, China [3]Hunan University of Traditional Chinese Medicine, Changsha 410007, Hunan Province, China

出　　处：《World Journal of Gastroenterology》2009年第25期3173-3177,共5页世界胃肠病学杂志（英文版）

基　　金：Supported by Grant from the Major State Basic Research Development Program of China (973 Program),No.2006CB504501

摘　　要：AIM： To assess the reliability and validity of the translated version of Nepean Dyspepsia Index （NDI） in Chinese patients with documented functional dyspepsia （FO）. METHODS： The translation process included forward translation, back translation, pretest and cross-cultural adaptation. Reliability and validity of the translated version were examined by asking 300 subjects to complete the Chinese version of the NDI. The mean age of subjects was 39.24 years and 68.7% of the subjects were women. Internal consistency analysis with Cronbach＇s α was performed to test the reliability. Correlation analysis was used to assess the content validity. Factor analysis and structural equation models were used to assess the construct validity. RESULTS： The Cronbach＇s α coefficients ranged 0.833-0.960, well above the acceptable level of 0.70. Correlation analysis showed that each item had a strong correlation with the corresponding domain, but a weak correlation with other domains. Confirmatory factor analysis indicated that the comparative fit index was 0.94, higher than the acceptable level of 0.90.CONCLUSION： The Chinese version of the NDI is a reliable and valid scale for measuring health-related quality of life and disease severity in Chinese patients with FD.AIM:To assess the reliability and validity of the translated version of Nepean Dyspepsia Index (NDI) in Chinese patients with documented functional dyspepsia (FD).METHODS: The translation process included forward translation, back translation, pretest and cross-cultural adaptation. Reliability and validity of the translated version were examined by asking 300 subjects to complete the Chinese version of the NDI. The mean age of subjects was 39.24 years and 68.7% of the subjects were women. Internal consistency analysis with Cronbach's α was performed to test the reliability. Correlation analysis was used to assess the content validity. Factor analysis and structural equation models were used to assess the construct validity.RESULTS: The Cronbach's α coefficients ranged 0.833-0.960, well above the acceptable level of 0.70. Correlation analysis showed that each item had a strong correlation with the corresponding domain, but a weak correlation with other domains. Confi rmatory factor analysis indicated that the comparative fit index was 0.94, higher than the acceptable level of 0.90.CONCLUSION: The Chinese version of the NDI is a reliable and valid scale for measuring health-related quality of life and disease severity in Chinese patients with FD.

关 键 词：Nepean Dyspepsia Index Functional dyspepsia Health-related quality of life Validation studies Questionaires 

分 类 号：S858.28[农业科学—临床兽医学] H315.9[农业科学—兽医学]