Structural relations in the effect of convenience food satisfaction and quality of life according to dietary style - Comparative study of singles in metropolitan area of Korea, Japan and China -원문보기
BACKGROUND/OBJECTIVES: Due to recent changes in social structure, single-person households are on the rise worldwide and therefore the interest in the quality of life of singles is increasing, but the research on the relationships related to their diet-related quality of life is scarce. This researc...
BACKGROUND/OBJECTIVES: Due to recent changes in social structure, single-person households are on the rise worldwide and therefore the interest in the quality of life of singles is increasing, but the research on the relationships related to their diet-related quality of life is scarce. This research analyzes the structural relations in the effect of convenience food satisfaction and quality of life according to dietary style of Korean, Japanese and Chinese singles. SUBJECTS/METHODS: The targets of this study were Korean, Japanese, and Chinese singles, identified as adults between the ages of 25 and 54, having economic capabilities or working and living alone, either legally or in actuality having no partner. A statistical analysis was conducted using SPSS12.0 for Windows and SEM using AMOS 5.0 statistics package. The reliability of these findings was supported by a Cronbach's alpha coefficient of 0.6 and higher for all the factors. In an attempt to study the level of satisfaction with convenience food in accordance to dietary style and the quality of life of singles, a structural equation model was constructed and analyzed. RESULTS: Of the three countries, regarding the effect of dietary style on singles' quality of life, the convenience-oriented style was found to have a negative effect on Korean singles' overall quality of life, but a positive effect on Japanese singles' overall quality of life, and a negative effect on Chinese singles' positive psychological aspect of quality of life. In addition, although Chinese singles have a high level of interest in health, they have an overall high level of satisfaction regarding fast food and its nutritional value. CONCLUSIONS: The number of singles in Korea, Japan, and China has been consistently increasing in recent years, and there is a need for continuous interest in their healthy dietary lifestyles in terms of convenience, economy, and taste.
BACKGROUND/OBJECTIVES: Due to recent changes in social structure, single-person households are on the rise worldwide and therefore the interest in the quality of life of singles is increasing, but the research on the relationships related to their diet-related quality of life is scarce. This research analyzes the structural relations in the effect of convenience food satisfaction and quality of life according to dietary style of Korean, Japanese and Chinese singles. SUBJECTS/METHODS: The targets of this study were Korean, Japanese, and Chinese singles, identified as adults between the ages of 25 and 54, having economic capabilities or working and living alone, either legally or in actuality having no partner. A statistical analysis was conducted using SPSS12.0 for Windows and SEM using AMOS 5.0 statistics package. The reliability of these findings was supported by a Cronbach's alpha coefficient of 0.6 and higher for all the factors. In an attempt to study the level of satisfaction with convenience food in accordance to dietary style and the quality of life of singles, a structural equation model was constructed and analyzed. RESULTS: Of the three countries, regarding the effect of dietary style on singles' quality of life, the convenience-oriented style was found to have a negative effect on Korean singles' overall quality of life, but a positive effect on Japanese singles' overall quality of life, and a negative effect on Chinese singles' positive psychological aspect of quality of life. In addition, although Chinese singles have a high level of interest in health, they have an overall high level of satisfaction regarding fast food and its nutritional value. CONCLUSIONS: The number of singles in Korea, Japan, and China has been consistently increasing in recent years, and there is a need for continuous interest in their healthy dietary lifestyles in terms of convenience, economy, and taste.
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가설 설정
Hypothesis 2. Quality of life will be significantly different depending on convenience food satisfaction of Korean, Japanese, and Chinese singles.
Hypothesis 3. Quality of life will be significantly different depending on the dietary style of Korean, Japanese, and Chinese singles.
제안 방법
In order to test unidimensionality of multiple items that consist of each factor, exploratory factor analysis and reliability test were performed. After evaluating the validity of measured items by performing the confirmatory factor analysis for each factor, a structural equation model (SEM) was constructed and analyzed. All tests proved the model satisfied the recommended level of the goodness of fit index and thus, the overall research model was proved to be appropriate.
6 and higher for all the factors. After obtaining the factors from processing an exploratory factor analysis, a confirmatory factor analysis for the produced model was carried out using AMOS and the end results supported the its validity.
0 Statistical programs. In order to test unidimensionality of multiple items that consist of each factor, exploratory factor analysis and reliability test were performed. After evaluating the validity of measured items by performing the confirmatory factor analysis for each factor, a structural equation model (SEM) was constructed and analyzed.
All tests proved the model satisfied the recommended level of the goodness of fit index and thus, the overall research model was proved to be appropriate. Structural equation model was used to determine path coefficients of the research model, and path coefficients were used to compare research models for Korean, Japanese, and Chinese singles.
The questionnaire for singles' quality of life was constructed with reference to relevant previous studies[8,17,18] and consisted of 17 items on health, economy, human relationship, psychological satisfaction, measuring them with a 5-point Likert scale.
대상 데이터
In the present study, singles are defined based on the previous study [9] as ‘the households currently without a legal or a putative spouse among the adults between 25 and 54 at the Korean age who live alone in a single separate household with economic capacity or working for a job. Survey questionnaires were directly distributed to the singles living in Seoul, Tokyo, Tianjin metropolitan area, and the survey period was between April and August, 2012. Out of 250, 200, 200 surveys in total that had been distributed, 208, 155, 153 surveys excluding incomplete surveys were used for statistical analysis.
성능/효과
As a result of testing Hypothesis 2, in terms of HMR satisfaction, out of three countries, Japanese singles had the lowest satisfaction for the price, indicating that the price of HMR somewhat influenced economy satisfaction in quality of life. Among Korean singles, processed food satisfaction had a significantly positive effect on the overall quality of life, which is thought to be the positive effect of singles’ processed food satisfaction on quality of life.
As a result of testing Hypothesis 3, the convenience-oriented style was found to have a significantly negative effect on overall quality of life among Korean singles. It is thought that Korean singles often do not feel the pleasure of eating which a large part of life, as they often take the simple meals, and are low in satisfaction for communication with others during a meal as they often eat alone and accordingly the psychological, economic and health satisfaction appeared to be low as well.
The economy-oriented style had a significantly negative effect only on fast food satisfaction among Korean singles, and a positive effect on delivered food satisfaction and overall fast food satisfaction among Chinese singles, but had no significant effect on convenience food satisfaction among Japanese singles.
The economy-oriented style was found to have a significantly positive effect on health satisfaction and a significantly negative effect on economy satisfaction in quality of life among Korean singles, a negative effect on all parts of quality of life except health satisfaction among Japanese singles, and no significant effect on Chinese singles’ quality of life.
The health-oriented style was found to have a significantly positive effect on all parts of quality of life except economy satisfaction among Korean singles, and have a negative effect on overall quality of life among Japanese singles, while having no significant effect on Chinese singles’ quality of life.
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