• Korean Journal of Community Nutrition
• /
• v.14 no.5
• /
• pp.600-607
• /
• 2009

The purpose of this study was to examine if Likert scales had been properly utilized in community nutrition research. A total of 527 research articles published in the 32 issues of Korean Journal of Community Nutrition from the volume 5, issue 1 in 2000 to the volume 10, issue 2 in 2005 were screened and 55 articles were found to have utilized one or more Likert scales for the studies. Therefore, 109 Likert scales used in the 55 studies were reviewed regarding the name, statement and response items, reliability and validity check, and analysis method. The scales were mostly referred as Likert scales (60%) or Likert-type scales (27%). Some scales were found to be referred as Likert scales although they were Likert-type scales when judged based on the information given in the respective articles. However some scales couldn't be judged for the rightness of the names because the information given for the scales in the articles was not enough. About 23% of the scales consisted of items less than 6 or more than 30, and therefore found to be inappropriate. The percentage of the scales listing all the statement items in the articles was only 25%. Most of the scales (85%) included 5 response items, and the rest included 4 (7%), 7 (6%), or 3 (2%). The percentages of the scales including appropriate center and end items were only 2% and 22%, respectively. Less than half of the scales (41%) were found to have been checked for reliability and only one scale was reported to have been checked for validity. In some scales (6%), the responses were scored improperly for analysis. The responses to the scales were frequently found to have been analyzed by parametric statistics such as mean, ANOVA, t-test, and Pearson's correlation, which might be a problem depending on the size and distribution of study samples. In conclusion, there is much room for improvement in the use of Likert scales in community nutrition research.

• Korean Journal of Community Nutrition
• /
• v.22 no.3
• /
• pp.191-206
• /
• 2017

Objectives: The present study systematically reviewed previous studies published in Korea regarding obesity status of children and adolescents in order to provide valid directions for future research and to help establish evidence-based prevention strategies. Methods: The articles were selected by searching the primary keyword 'obesity' and the secondary keywords 'children', 'young children', 'adolescents' or 'kids' on the KISS (Korean Studies Information Service System). Out of 503 articles excluding the overlap, 308 articles were selected with inclusion and exclusion criteria. Secular trends of obesity research, distribution of subjects, potential risk factors for obesity, and intervention method for obesity management were documented. The associations between obesity and dietary factors were summarized. Results: The overall number of research studies has increased since 2000 but obesity management studies have decreased in recent years. Most of the studies used a cross-sectional design. Research on preschool children were extremely limited. Intervention studies targeting males were prevalent. The most significant variables relevant to dietary habits were speed of eating, regular breakfast and snacking. The most significant food and nutrient intake factors were thiamin and iron. Intakes of cereals and animal foods were significantly higher in obese children than the counterparts. Conclusions: The present review of locally published articles on the obesity status in children and adolescents suggested the need for well-designed further studies focused on risk factors of obesity and on a range of intervention methods conducive to the development of obesity prevention and management programs.

• Journal of the Korean Society of Food Culture
• /
• v.34 no.3
• /
• pp.255-267
• /
• 2019

This study was conducted to understand the dietary life of North Koreans by analyzing dietary life-related articles published in Joseon Nyeoseong, which is the only women's magazine in North Korea. This study employed content analysis of 769 articles from 1999 to 2017. The major findings of this study were as follows. Out of the 769 articles, 131 (17.0%) were about dietary culture, 541 (70.4%) were about the food and nutrition, and 97 (12.6%) were about food production. The articles emphasized ethnic food and North Koreans ingredients, spices, cooking methods, containers, and etiquette. A variety of foods and ingredients were used to maintain health, as well as to treat common illnesses and health problems. There were 173 recipes mentioned in the magazine, but no foreign food recipes. There were many dishes that could be preserved for a long time such as Kimchi and pickles. For food security, many vegetables and plant-eating animals such as rabbits were cultivated. Overall, the results indicate that North Korea has been maintaining its unique dietary life without being influenced by foreign countries.

• Nutrition Research and Practice
• /
• v.16 no.sup1
• /
• pp.21-36
• /
• 2022

BACKGROUND/OBJECTIVES: The long-term health impacts of dietary sugar have begun to be reported. The committee on the 2020 Dietary Reference Intakes for Koreans for sugar intended to update the scientific evidence on the association of added sugar intake with health outcomes, including mortality. This study evaluated the evidence on the association of dietary sugar with the all-cause and cardiovascular disease mortality from cohort studies. SUBJECTS/METHODS: The PubMed and ScienceDirect databases were searched until July 2021. The search terms were based on multiple combinations of keywords, such as added sugar, beverage, and mortality, included in the title or abstract. Two authors independently assessed the eligibility criteria of study selection and extracted the information from each selected article for this systematic review. RESULTS: The literature search identified 276 articles. Seventeen cohort studies met the inclusion criteria and were included in this systematic review. This study extracted information on the cohort and participants, dietary assessment methods, exposure and its comparison groups, health outcomes, and risk measures. Five articles reported added sugar intake, and 15 articles reported the food sources of the added sugar in the association with mortality. Increased mortality was observed in higher added sugar intake and a lower intake of less than 5% of energy, while higher discrepancies between gender, age groups, and countries were noted. In addition, nutritious sugary foods and beverages did not increase mortality. CONCLUSIONS: A 'U' or 'J' shaped relationship between the added sugar intake and mortality was estimated. The observed discrepancy indicated the need for more evidence to establish the dose-response relationship for Koreans.

• Journal of Family Resource Management and Policy Review
• /
• v.3 no.1
• /
• pp.95-104
• /
• 1999

This study aims to review the family life and its changing process in the early twenty’s century. It is explored through the editorial of the Maeil-Shinho during 1910∼1945. It is valuable work to explore of family life in the Maeil-Shinbo newspapers because it was continuously published from 1910 to 1945. The author attempted to study family life in five major such as food and nutrition, clothing, resource management, family, and child care. And of the articles food and nutrition parts ranks the highest order and clothing care was the second highest. In the early nineteenth century, many of articles were about to family life but decreased its amount by 1940. Of the editorials, most articles had dealt with the educational context in order to improve the quality of family life.

• Korean Journal of Food Science and Technology
• /
• v.54 no.4
• /
• pp.403-413
• /
• 2022

Evidence regarding the efficacy of Ginkgo biloba extract on cognitive function has been contentious. This study evaluated the effective period of G. biloba intake to improve cognition in the elderly. PubMed, EMBASE, Cochrane, Web of Science, and PsycArticles databases were searched for short-listing relevant studies. Twenty-five studies fulfilled the inclusion criteria. Cognitive efficacy was assessed based on the duration of intervention. G. biloba intake for 3-6 months statistically significantly affected cognitive function (SMD= -0.21; 95% CI -0.39, -0.03; p=0.02). However, the improvement in activities of daily living (ADLs) was not statistically significant. Thus, G. biloba intake for more than three months improves cognition in the elderly people with cognitive impairment and AD dementia without any safety risk. Intake for up to six months does not improve ADLs significantly in mild to moderate dementia patients.

• Journal of the Korean Society of Food Culture
• /
• v.5 no.3
• /
• pp.287-299
• /
• 1990

To analyse the royal marriage of Yi-Dynasty, the authors studied 'Kuk Hon Geong Rea', which is a historical record, published in 1749(King Yong-Jo), on the usage of marriage articles in the royal family. The essential steps or articles described in the record were as follows, Royal marriage of King : Wedding presents, black and red silks from the bridegroom's to bride's, proclamation of Queen and wedding ceremony(納采) (納徵) (冊妃) (親迎 尊雁 同牢). Royal marriage of Crown Prince : Wedding presents, black and red silks from the bridegroom's to bride's. proclamation of Crown Princess, wedding ceremony, and bride's gifts to her parents-in-law(納采) (納徵) (冊嬪) (親迎 尊雁 同牢) (朝見體). Royal marriage of Crown Princess : Wedding presents, black and red silks from the bridegroom's to bride's, wedding ceremony, bride's gifts to her parents-in-law(納采) (納徵) (尊雁 同牢) (見舅姑禮). Necessary articles for weddings were different according to royal status of the member in the royal family.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.29 no.4
• /
• pp.295-304
• /
• 2015

The purpose of this study was to systematically review published articles on Yaksun studies and provide understanding on current and future studies with Yaksun and medical treatment with food. We performed systematic review on the Yaksun studies published recent 16 years from 2000 to 2016 using seven Korean database on research articles. We found 90 articles are relevant for the analysis. The articles on Yaksun were significantly increased since 2005. As for the research field, Food Science (39 articles, 31.0%) and Tourism (20 articles, 15.9%) were dominant throughout the years. Researchers from Science of cookery (35 articles, 35.0%) and Food and Nutrition (32 articles, 32.0%) were found to be most frequent. The prime type of research on Yaksun were the We found that the Survey (49 articles, 52.7%) was the most frequent research method and basic research for providing related data (41 articles, 45.6%) was easily found as for the purpose of the article. We found that there were insufficient reports on clinical efficacy of Yaksun, especially with the treatment of diseases. The interest of medical professionals is needed for the better understanding on the medical use of Yaksun and therapeutic diet which has potentials for integrative medicine.

• Korean Journal of Community Nutrition
• /
• v.5 no.4
• /
• pp.697-708
• /
• 2000

The purpose of this study is to analyze the contents of the questionnaires used in dietary surveys and to evaluate each item in relation to the item construction strategy. Articles of which the contents were related to food, nutrition, diet, dietary behavior, and related areas. Published from 1997 to 1999 were searched fir and a total of 121 questionnaires were collected and analyzed. The questions in the questionnaires were classified into related areas and sub-areas. Among the keywords in the title of the articles, the term 'nutritional status'(or 'dietary intake status') was most frequently used. The terms such as dietary status, obesity, health, food habit, and dietary behavior were also frequency used. Major topics of the items in the questionnaires varied according to the life cycle of the subjects of the study. The topics most frequently asked in each lift cycle were as follows : overeating, snack, and food preference for preschool- and school-aged children ; anthropometry, weight control, and snack for middle and highschool students : meal skipping, smoking, and drinking for college students : disease, smoking, drinking, and exercise for adults : and smoking, drinking, disease and perceived health for the elderly. Inappropriate questions with complicated language, typographic and grammatic errors, unnecessary words, and negative questions were found. Therefore, care should be taken to construct each question so as to avoid possible misinterpretation. Also, a standardized questionnaire be developed for survey researchers.

• Korean Journal of Food Science and Technology
• /
• v.52 no.5
• /
• pp.450-458
• /
• 2020

The purpose of this study was to conduct a systematic review of the current published research related to improvement in cognitive function. A systematic search was performed in three bibliographic databases (PubMed, Cochrane Library, and EMBASE) using "dementia", "memory", "food", "diet", and "nutrition" as keywords. Meal management intervention, including Dietary Approaches to Stop Hypertension (DASH) diet, Mediterranean (Med) diet, Diet Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet, and other studies, was also included in the analysis. Through extensive screening, 21 articles, out of 2101 papers retrieved, were used for the final systematic review. The methodological quality of the randomized controlled clinical trials (RCTs) was assessed using the Cochrane Risk of Bias tool. These articles recommended vegetables, fruits, whole grains, olive oil, fish, berries, nuts, and beans. In conclusion, this study suggests the potential use of meal management to improve cognitive function.