OBJECTIVES There are several pattern-diagnosis questionnaires developed to objectify the process of pattern-diagnosis in Korean medicine. In this context, this study is aimed to develop Food-Retention Questionnaire for Functional Dyspepsia(FRQ-FD) from modifying previously developed Food-Retenti...
OBJECTIVES There are several pattern-diagnosis questionnaires developed to objectify the process of pattern-diagnosis in Korean medicine. In this context, this study is aimed to develop Food-Retention Questionnaire for Functional Dyspepsia(FRQ-FD) from modifying previously developed Food-Retention Questionnaire(FRQ) and to verify its reliability and validity. Furthermore, this study has objectives for getting the optimal cut-off value of FRQ-FD for standardization and for utility of clinical situation.
METHODS In order to develop FRQ-FD, we extracted major symptoms of Food-Retention pattern for functional dyspepsia from Chinese/Korean medicine textbooks and requested importance survey to experts by Delphi method. The first draft of FRQ-FD is composed of 25 questions in total, which is made of 8 questions from textbooks and Delphi method, and 17 questions from Food-Retention Questionnaire(FRQ) already developed in 2013. For the analysis of its reliability, validity and optimal cut-off value, a total of 60 subjects were enrolled in this study from June 25th to August 13th in 2018. Thirty patients were diagnosed as both functional dyspepsia and Food-Retention pattern and thirty healthy participants were not. All participants were requested to fulfill FRQ-FD, Stomach-Qi-Deficiency questionnaire(SQDQ), scale for Stomach-Qi-Deficiency pattern(SSQD), visual analog scale(VAS) for dyspepsia, Nepean dyspepsia index - Korean version(NDI-K) and functional dyspepsia-related quality of life(FD-QoL).
RESULTS There were no statistically significant differences of sex distribution, age and body mass index between patient group and control group. Because 5 questions affected its reliability negatively and 3 questions affected its clinical validity negatively, we decided to exclude those 8 questions on further inspection. The Cronbach’s α coefficient of the revised FRQ-FD(17 items) was 0.899, and clinical validity was verified. Construct validity was analyzed by factor analysis and produced 5 factors. There were statistically significant positive correlations between the revised FRQ-FD and other dyspepsia scales such as SQDQ, SSQD, VAS, NDI-K and FD-QoL. Especially VAS and NDI-K had strongly positive correlations with FRQ-FD.
CONCLUSIONS FRQ-FD developed in this study can provide a fundamental reliability and the validity for pattern-diagnosis questionnaire. FRQ-FD can help to diagnose Food-Retention pattern in functional dyspepsia patients, and further studies are required to inspect several statistical factors.
OBJECTIVES There are several pattern-diagnosis questionnaires developed to objectify the process of pattern-diagnosis in Korean medicine. In this context, this study is aimed to develop Food-Retention Questionnaire for Functional Dyspepsia(FRQ-FD) from modifying previously developed Food-Retention Questionnaire(FRQ) and to verify its reliability and validity. Furthermore, this study has objectives for getting the optimal cut-off value of FRQ-FD for standardization and for utility of clinical situation.
METHODS In order to develop FRQ-FD, we extracted major symptoms of Food-Retention pattern for functional dyspepsia from Chinese/Korean medicine textbooks and requested importance survey to experts by Delphi method. The first draft of FRQ-FD is composed of 25 questions in total, which is made of 8 questions from textbooks and Delphi method, and 17 questions from Food-Retention Questionnaire(FRQ) already developed in 2013. For the analysis of its reliability, validity and optimal cut-off value, a total of 60 subjects were enrolled in this study from June 25th to August 13th in 2018. Thirty patients were diagnosed as both functional dyspepsia and Food-Retention pattern and thirty healthy participants were not. All participants were requested to fulfill FRQ-FD, Stomach-Qi-Deficiency questionnaire(SQDQ), scale for Stomach-Qi-Deficiency pattern(SSQD), visual analog scale(VAS) for dyspepsia, Nepean dyspepsia index - Korean version(NDI-K) and functional dyspepsia-related quality of life(FD-QoL).
RESULTS There were no statistically significant differences of sex distribution, age and body mass index between patient group and control group. Because 5 questions affected its reliability negatively and 3 questions affected its clinical validity negatively, we decided to exclude those 8 questions on further inspection. The Cronbach’s α coefficient of the revised FRQ-FD(17 items) was 0.899, and clinical validity was verified. Construct validity was analyzed by factor analysis and produced 5 factors. There were statistically significant positive correlations between the revised FRQ-FD and other dyspepsia scales such as SQDQ, SSQD, VAS, NDI-K and FD-QoL. Especially VAS and NDI-K had strongly positive correlations with FRQ-FD.
CONCLUSIONS FRQ-FD developed in this study can provide a fundamental reliability and the validity for pattern-diagnosis questionnaire. FRQ-FD can help to diagnose Food-Retention pattern in functional dyspepsia patients, and further studies are required to inspect several statistical factors.
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