Development and reliability evaluation of the chronic gastritis scale quality of life instruments for chronic disease

Objective To develop and evaluate the reliability of the chronic gastritis scale of the quality of life instruments for chronic diseases(QLICD-CG).Methods Based on the strategy of combination of general model and specific ones,QLICD-CG was developed by the methods of literature review,individual interview and focus group discussion.The scale was used to 1-4 inpatients of chronic gastritis.The reliabilit y of the instrument was assessed by Cronbachαand the test-retest correlation coefficients for each domain and facet.Results The QLICD-CG(V110)was developed with 30 items of general module and 16 items of specific module.The coefficients of internal consistency,split-half and the test-retest reliability of total scores and all domains are as follows:total scores 0.89-,0.733,0.98,physical functioning domain(PHD)0.784,0.851,0.958,psychological functioning domain(PSD)0.878,0.891,0.99,social functioning domain(SOD)0.686,0.678,0.955,the specific module of chronic gastritis(CGD)0.7-8,0.799,0.97.Conclusion The QLICD-CG(V1.0)can be used to assess the quality of life for patients of chronic gastritis with good reliability and reasonable operation in clinical settings.