Reliability of the appetite questionnaire
To determine the reliability of the questions, 20 patients completed the questionnaire two times with an interval of 14 days. The correlation coefficients of the answers to all the questions were more than 0.7. Analysis of internal reliability also presented satisfactory results (Cronbach’s alpha coefficient = 0.73). The CVR and CVI of all questions were calculated more than 0.8 and the results were satisfactory.