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 forw...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.展开更多
The aim of this study was to investigate quality of life and applicability of the 10-item short form of the Nepean Dyspepsia Index (SF-NDI) in patients with subjective food hypersensitivity.Fifty-two adult patients an...The aim of this study was to investigate quality of life and applicability of the 10-item short form of the Nepean Dyspepsia Index (SF-NDI) in patients with subjective food hypersensitivity.Fifty-two adult patients and 120 controls were examined using three questionnaires: Quality of life Nepean Dyspepsia Index (NDI), Gastrointestinal Symptom Rating Scale (GSRS),and Ulcer Esophagitis Subjective Symptoms Scale (UESS). To document psychometric properties, 20 of the patients filled in the SF-NDI questionnaire once more 4 weeks later. Patients had poor quality of life compared with controls from health care workers or general population (P < 0.001). Scores on SF-NDI were significantly correlated with scores on the GSRS(r = 0.34, P = 0.02) and UESS (r = 0.41, P = 0.003). The SF-NDI performed very satisfactorily, with a high reliability,construct validity, and responsiveness. Patients with subjective food hypersensitivity have considerably reduced quality of life.The SF-NDI provides reliable, responsive, and clinically valid measures of quality of life in these patients.展开更多
基金Supported by Grant from the Major State Basic Research Development Program of China (973 Program),No.2006CB504501
文摘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.
文摘The aim of this study was to investigate quality of life and applicability of the 10-item short form of the Nepean Dyspepsia Index (SF-NDI) in patients with subjective food hypersensitivity.Fifty-two adult patients and 120 controls were examined using three questionnaires: Quality of life Nepean Dyspepsia Index (NDI), Gastrointestinal Symptom Rating Scale (GSRS),and Ulcer Esophagitis Subjective Symptoms Scale (UESS). To document psychometric properties, 20 of the patients filled in the SF-NDI questionnaire once more 4 weeks later. Patients had poor quality of life compared with controls from health care workers or general population (P < 0.001). Scores on SF-NDI were significantly correlated with scores on the GSRS(r = 0.34, P = 0.02) and UESS (r = 0.41, P = 0.003). The SF-NDI performed very satisfactorily, with a high reliability,construct validity, and responsiveness. Patients with subjective food hypersensitivity have considerably reduced quality of life.The SF-NDI provides reliable, responsive, and clinically valid measures of quality of life in these patients.
