{"title":"The dietary factors associated with sleep duration in postmenopausal middle-aged women: a cross-sectional study using 2019-2023 Korea National Health and Nutrition Examination Survey data.","authors":"Eugene Shim","doi":"10.5720/kjcn.2025.00052","DOIUrl":"10.5720/kjcn.2025.00052","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to analyze dietary factors associated with sleep duration in postmenopausal middle-aged women using data from the Korea National Health and Nutrition Examination Survey (KNHANES), with particular emphasis on the postmenopausal period.</p><p><strong>Methods: </strong>A total of 3,040 postmenopausal women aged 40-64 years from the 2019-2023 KNHANES were included. Sleep duration was classified into four categories: \"appropriate sleep duration\" (ASD; 7-9 hours), \"short sleep duration\" (6-7 hours), \"very short sleep duration\" (VSSD; < 6 hours), and \"long sleep duration\" (LSD; > 9 hours). Nutrient and food intake were compared among groups using analysis of covariance. Multinomial logistic and polynomial regression models assessed associations, adjusting for demographic and health covariates.</p><p><strong>Results: </strong>The VSSD group had higher body mass index and waist circumference than the ASD group, despite lower total energy intake, and also consumed more snack energy and skipped breakfast and dinner more often. This group also had lower intakes of monounsaturated fatty acids and nuts and seeds. In the late menopausal group, greater consumption of cereal grains, fish and shellfish, and beverages was associated with elevated LSD risk. Conversely, higher folate intake in the early menopausal group was inversely associated with VSSD risk. Cholesterol intake was positively associated with LSD risk in both groups. A negative nonlinear association between sleep duration and dietary intake was observed in the early menopausal group when polyunsaturated fatty acid intake exceeded 19.86 g/day and riboflavin intake exceeded 1.76 mg/day. In the late menopausal group, riboflavin intake was strongly correlated with increased LSD risk (odds ratio = 4.776, <i>P</i> = 0.004). Sugar and beverage intake showed a positive linear relationship with sleep duration at average intake levels.</p><p><strong>Conclusion: </strong>Dietary factors associated with sleep duration differed by postmenopausal period, with specific nutrients and food groups exhibiting variable associations with sleep duration above mean intake levels.</p>","PeriodicalId":74046,"journal":{"name":"Korean journal of community nutrition","volume":"30 3","pages":"197-213"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12489304/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145234413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Shifting social perceptions of dietitians in Korea after the legislation of nutrition teachers: a keyword network analysis of unstructured data.","authors":"Yunkyoung Oh, Eunsil Her","doi":"10.5720/kjcn.2025.00045","DOIUrl":"10.5720/kjcn.2025.00045","url":null,"abstract":"<p><strong>Objectives: </strong>In Korea, dietitian licenses began to be issued in 1964, and they have been working to prevent diseases and promote people's health in various fields according to the times. This study was conducted to compare differences in social perception of dietitian over time by collecting online unstructured data and analyzing the frequency and network structure of nutritionist-related keywords after the deployment of nutrition teachers began.</p><p><strong>Methods: </strong>Using 'dietitian' as a keyword, we collected data from NAVER's web, blogs, and news provided by Textom (2024, The IMC) and refined the data. We investigated the frequency ranking of keywords related to dietitians for each period, revealed the network structure using UCINET6 (Freeman) and Netdraw, and clustered similar concepts among keywords through CONCOR (CONvergence of iterated CORrelations) analysis to cluster-related concepts.</p><p><strong>Results: </strong>Frequency analysis revealed that during the first period, keywords such as 'School' and 'Education' reflecting the institutionalization of nutrition teachers, were highly ranked. However, by the second period, these terms had dropped out of the top 10. Meanwhile, keywords related to healthcare, such as 'Hospital', consistently remained among the most prominent. In the second period, the rankings of the 'License' and 'University transfer' keywords increased significantly. Centrality analysis showed stronger connectivity between dietitians and keywords such as 'Food', 'School', 'Examination', and 'Nutrition' in the second period compared to the first. CONCOR analysis further demonstrated that the 'Major education' cluster of the first period was differentiated into the 'Major education and qualification' and 'Professional competency certification process' clusters of the second period. In addition, the 'Health and welfare' cluster of the first period was divided into the 'Health and welfare regional service' clusters of the second period.</p><p><strong>Conclusion: </strong>The results of this study will be used as basic data for identifying social perception and trends in the dietitian profession, further providing a scope for their improvement.</p>","PeriodicalId":74046,"journal":{"name":"Korean journal of community nutrition","volume":"30 3","pages":"214-223"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12489303/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145234471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Current status of nutrition education media and its utilization in providing customized nutrition information for older adults in Korea: a scoping review based on the transtheoretical model and food literacy].","authors":"Seojin Yun, Jiwon An, Kirang Kim","doi":"10.5720/kjcn.2025.00094","DOIUrl":"10.5720/kjcn.2025.00094","url":null,"abstract":"","PeriodicalId":74046,"journal":{"name":"Korean journal of community nutrition","volume":"30 3","pages":"175-182"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12489308/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145234416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Adult consumers' perception of plant-based meat substitutes and related factors in Korea: a cross-sectional study].","authors":"Yun-A Lee, Mi-Kyeong Choi","doi":"10.5720/kjcn.2025.00115","DOIUrl":"10.5720/kjcn.2025.00115","url":null,"abstract":"","PeriodicalId":74046,"journal":{"name":"Korean journal of community nutrition","volume":"30 3","pages":"237-248"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12489309/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145234319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Behavioral intention toward planetary health diet among adult users of government worksite cafeterias in Seoul, South Korea: a mixed-methods study based on the theory of planned behavior and focus groups interviews].","authors":"Ji-Won Kang, Su-Jin Lee, Sil-Ah Kim, Ji-Yun Hwang","doi":"10.5720/kjcn.2025.00108","DOIUrl":"10.5720/kjcn.2025.00108","url":null,"abstract":"","PeriodicalId":74046,"journal":{"name":"Korean journal of community nutrition","volume":"30 3","pages":"224-236"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12489312/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145234312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Maternal home meal replacement use and attitudes, and young children's preferences by usage frequency in meals for young children: a cross-sectional study].","authors":"Bo-Yeon Kim, Mi-Hyun Kim, Jee-Young Yeon","doi":"10.5720/kjcn.2025.00066","DOIUrl":"https://doi.org/10.5720/kjcn.2025.00066","url":null,"abstract":"","PeriodicalId":74046,"journal":{"name":"Korean journal of community nutrition","volume":"30 2","pages":"163-172"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12269007/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145202319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jong-Youn Rha, Sohyun Kim, Hae-Rang Lee, Juhyeon Kil
{"title":"[A study on regional differences in dietary behaviors and satisfaction in Korea focusing on urban and rural comparisons: a cross-sectional study].","authors":"Jong-Youn Rha, Sohyun Kim, Hae-Rang Lee, Juhyeon Kil","doi":"10.5720/kjcn.2024.00262","DOIUrl":"10.5720/kjcn.2024.00262","url":null,"abstract":"","PeriodicalId":74046,"journal":{"name":"Korean journal of community nutrition","volume":"30 2","pages":"140-149"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12269021/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145202317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyoung Su Park, A-Hyun Jeong, Hyejung Hong, Hana Jang, Hye-Jin Kim
{"title":"Erratum: Effects of a multi-component program based on partially hydrolyzed guar gum (Sunfiber®) on glycemic control in South Korea: a single-arm, pre-post comparison pilot clinical trial.","authors":"Hyoung Su Park, A-Hyun Jeong, Hyejung Hong, Hana Jang, Hye-Jin Kim","doi":"10.5720/kjcn.2024.00276.e1","DOIUrl":"10.5720/kjcn.2024.00276.e1","url":null,"abstract":"<p><p>[This corrects the article on p. 40 in vol. 30.].</p>","PeriodicalId":74046,"journal":{"name":"Korean journal of community nutrition","volume":"30 2","pages":"173-174"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12382331/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145202357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Healthy eating intentions among adults in China: a cross-sectional study of northern and southern regions and city tiers based on the theory of planned behavior.","authors":"Yi Jiang, Ji-Yun Hwang","doi":"10.5720/kjcn.2025.00087","DOIUrl":"10.5720/kjcn.2025.00087","url":null,"abstract":"<p><strong>Objectives: </strong>The theory of planned behavior (TPB) has been widely employed to predict healthy eating intentions. Regional differences may affect dietary habits, health status, and personality traits, whereas variations in urbanization influence accessibility to fresh and healthy food, thereby impacting TPB components. This study aimed to explore whether regional differences between northern and southern China including city-tier development are associated with healthy eating intentions among Chinese adults.</p><p><strong>Methods: </strong>The study included data from 2,114 Chinese adults aged 19-64 years collected between 2019 and 2023. Participants were categorized by geographic region (north or south) and city-tier status (first-tier or other).</p><p><strong>Results: </strong>Compared to individuals from northern first-tier cities, those from southern regions exhibited stronger attitudes, perceived behavioral control (PBC), and intention to eat healthily. Participants from other cities in the north had more positive attitudes, subjective norms, PBC, and intentions to participate in healthy eating. Furthermore, residents of southern cities revealed weaker subjective norms than those of cities in the north. The adjusted odds ratio (OR) for compliance with intention to engage in healthy eating was higher among participants from other cities in both the north and south compared to those from northern first-tier cities (northern other cities: OR = 2.43, 95% confidence interval [CI]: 1.49-3.97, <i>P</i> < 0.001; southern other cities: OR = 1.95, 95% CI: 1.08-3.51, <i>P</i> = 0.027). No significant differences existed among the subjects from first-tier cities according to their geographic regions. These trends remained consistent even after including the interaction term between geographic regions and city-tier classification.</p><p><strong>Conclusion: </strong>These findings underscore the complexity of regional variations influencing dietary intentions and indicate that tailored health promotion strategies should incorporate regional characteristics. Future research should explore underlying factors, including regional cultural influences, to better inform policies and interventions.</p>","PeriodicalId":74046,"journal":{"name":"Korean journal of community nutrition","volume":"30 2","pages":"114-126"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12269022/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145202272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Relationship between self-care and health-related behaviors among Korean adults: a cross-sectional study.","authors":"EunJung Lee, Jin A Jang, Ji-Myung Kim","doi":"10.5720/kjcn.2024.00255","DOIUrl":"10.5720/kjcn.2024.00255","url":null,"abstract":"<p><strong>Objectives: </strong>This study investigated the relationship between self-care and health-related behaviors such as medication use, dietary supplementation, dietary habits, and physical activity among Koreans aged 20-60 years.</p><p><strong>Methods: </strong>Data from a total of 300 participants (150 men and 150 women) living in Seoul and Gyeonggi provinces in Korea were analyzed to assess the relationship between health behaviors and dietary supplements (DSs) related to self-care. Based on self-care levels, the participants were classified into three groups: low (n = 124), medium (n = 78), and high (n = 98).</p><p><strong>Results: </strong>DSs (<i>P</i> < 0.001), physical activity (<i>P</i> < 0.001), recognizing the perceived health benefits of self-care (<i>P</i> < 0.001), self-care when sick (<i>P</i> = 0.039), and the reasons for self-care (<i>P</i> = 0.028) differed among the self-care groups. Daily diet frequency (<i>P</i> = 0.001), breakfast frequency (<i>P</i> = 0.026), regular exercise (<i>P</i> < 0.001), DSs use rate (<i>P</i> < 0.001), DSs use frequency (<i>P</i> = 0.013), and total dietary behavior score (<i>P</i> < 0.001) also differed significantly depending on the degree of self-care. The degree of self-care was significantly and positively correlated with DSs intake (r = 0.377, <i>P</i> < 0.001), physical activity (r = 0.433, <i>P</i> < 0.001), and total dietary behavior score (r = 0.185, <i>P</i> < 0.01).</p><p><strong>Conclusion: </strong>The results demonstrated that the degree of self-care was related to DSs, physical activity, and total dietary behavior scores in Korean adults. Additionally, self-care capacity should be increased through health-related behaviors based on health education programs.</p>","PeriodicalId":74046,"journal":{"name":"Korean journal of community nutrition","volume":"30 2","pages":"103-113"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12269027/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145202349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}