Korean Journal of Community Nutrition

Research Articles

[English]
Health-related quality of life and nutrient intake of the elderly with type 2 diabetes according to comorbidity burden: a cross-sectional study: Yejung Choi, Kyong Park; Korean J Community Nutr 2024;29(5):418-430. Published online October 31, 2024; DOI: https://doi.org/10.5720/kjcn.2024.00014

Abstract PDF PubReader ePub: Objectives
This study aimed to explore the cross-sectional association between health-related quality of life (HRQoL) according to the number of comorbidities in older adults with type 2 diabetes mellitus (T2DM) using the Euro Quality of Life-5 Dimensions (EQ-5D) index. Methods: This study included 3,553 participants aged ≥ 65 years from the 2008–2020 Korea National Health and Nutrition Examination Survey. Dietary data were collected through 24-hour recall interviews by trained researchers, and demographic and lifestyle information via self-administered questionnaires. HRQoL was measured using a modified EQ-5D scale. Multivariable linear regression analyzed the associations between EQ-5D scores, nutrients and comorbidity, controlling for sociodemographic and health variables. Results: Most participants reported ‘no problems’ in the EQ-5D scores, although approximately 17% to 47% of participants reported ‘some problems’ or ‘extreme problems,’ depending on the dimension. As comorbidities increased, significant declines were observed across all dimensions, particularly in mobility, usual activities, pain/discomfort, and anxiety/ depression. Nutrient intake analysis revealed that participants with three or more comorbidities consumed less carbohydrates, but more fat. Conclusion: Our findings demonstrate that among older adults with T2DM, a higher number of comorbidities is associated with decreased HRQoL. Additionally, there are differences in nutrient intake patterns among those with more comorbidities, specifically decreased carbohydrate intake and increased fat intake. These results emphasize the need for comprehensive and tailored management strategies that consider both diabetes and the co-occurring health conditions. By addressing the complex healthcare needs of individuals with multiple comorbidities, it is possible to enhance their HRQoL and overall well-being.

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[English]
Sex differences in health-related quality of life among older Korean adults with type 2 diabetes mellitus: a cross-sectional study: Hyeonji Jeong, Kyong Park; Korean J Community Nutr 2024;29(4):336-347. Published online August 31, 2024; DOI: https://doi.org/10.5720/kjcn.2024.00003

Abstract PDF PubReader ePub: Objectives
This cross-sectional study examined sex differences in Health-Related Quality of Life (HRQoL) among seniors with Type 2 Diabetes Mellitus (T2DM).
Methods
Data from the Korea National Health and Nutrition Examination Survey (2008–2020) were analyzed. The EuroQol-5 Dimensions (EQ-5D), a measure of HRQoL, was used. It comprises five dimensions: mobility, self-care, usual activity, pain/discomfort, and anxiety/depression, each with three levels.
Results
Analysis of 3,826 older adults with T2DM showed a significant increasing trend in the EQ-5D Index from the 4th survey phase onwards (P for trend < 0.001 for both men and women). Men consistently reported higher EQ-5D levels than women across all survey years. Women’s EQ-5D levels remained lower than men’s, maintaining a decade-old disparity (P < 0.05). Men scored significantly higher (P < 0.05) in most EQ-5D domains, except for self-care and anxiety/depression, resulting in a higher total EQ-5D Index (P = 0.001). Increased comorbidities were strongly associated with lower EQ-5D levels in both sexes. Additionally, there was a negative correlation between the EQ-5D Index and refined grain intake for both sexes (P for trend < 0.001), with high-EQ-5D groups consuming fewer refined grains. Women in the high-EQ-5D group consumed more nuts, vegetables, and meat compared to men (P for trend < 0.05).
Conclusions
Our study highlights the sex disparities in HRQoL among older adults with T2DM. The findings suggest the need for tailored treatment guidelines aimed at improving the HRQoL of elderly T2DM patients, with a focus on their sex-specific characteristics. Implementing these tailored guidelines could enhance the HRQoL of older women with T2DM and promote more equitable healthcare outcomes. This underscores the importance of considering sex differences to comprehensively improve the well-being of this population.

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Editorial

[English]
Korean Journal of Community Nutrition has been accepted for indexing in SCOPUS: Milestone in the path towards journal's goals: Kyong Park; Korean J Community Nutr 2023;28(6):447-448. Published online December 31, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.6.447

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Review

[English]
Mercury exposure is associated with obesity: a systematic review and meta-analysis: Jimin Jeon, Kyong Park; Korean J Community Nutr 2023;28(3):192-205. Published online June 30, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.3.192

Abstract PDF

Objectives
Previous studies have evaluated the association between mercury exposure and obesity but have yielded mixed conclusions. The aim of this study was to systematically review and summarize scientific evidence regarding the association between mercury exposure and obesity in the human population.
Methods
We conducted a systematic search of PubMed, Web of Science, Scopus, and Science Direct for articles related to mercury exposure and obesity. Meta-analyses of the highest and lowest categories of mercury levels were evaluated using a random effects model. Begg’s test was used to detect publication bias.
Results
A total of 9 articles were included. The pooled random effects odds ratio (OR) for mercury exposure and obesity of all 9 studies was 1.66 (95% confidence interval [CI]: 1.16-2.38). This positive association was evident in adults (OR: 1.61, 95% CI: 1.02-2.54) and among studies with Asian populations (OR: 2.00, 95% CI: 1.53-2.59), but not among those with North America/African populations (OR: 0.90, 95% CI: 0.50-1.65).
Conclusions
The present meta-analysis identified a positive association between mercury exposure and obesity. These findings suggest that toxic environmental metals such as mercury may be an important risk factor for obesity along with dietary habits and lifestyles.

Citations

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Original Articles

[English]
Nutritional Evaluation and Its Relation to the Risk of Metabolic Syndrome according to the Consumption of Cooked Rice and Cooked Rice with Multi-grains in Korean Adults: Based on 2007-2008 Korean National Health and Nutrition Examination Survey: Soo Hyun Son, Hwa Jung Lee, Kyong Park, Tae Youl Ha, Jung Sook Seo; Korean J Community Nutr 2013;18(1):77-87. Published online February 28, 2013; DOI: https://doi.org/10.5720/kjcn.2013.18.1.77

Abstract PDF PubReader

This study was conducted to investigate the nutrient intakes of subjects by quartile of percent energy intake from cooked rice, consumption of cooked rice mixed with multi-grains and to evaluate rice consumption in relation to the risk of metabolic syndrome. The subjects were 5,830 males and females aged between 20~64 years based on 2007-2008 KNHNES data. Levels of percent energy intake from cooked rice were classified into 4 groups (Q1, Q2, Q3, Q4 groups: 25% of each) using data of 24-hour recall method from KNHNES. Using medical examination and questionnaire, subjects were classified according to diagnostic criteria of metabolic syndrome. The subjects with higher age, being married, lower education, lower economic level were more likely to take higher percent energy intake from cooked rice. Quartile Q3 of percent energy intake from cooked rice tended to show higher Index of Nutritional Quality (INQ) for fiber, calcium, iron, potassium and vitamin A. INQ of protein, dietary fiber, calcium, thiamin, phosphorus, potassium, riboflavin, niacin and vitamin C by consumption of cooked rice mixed with multi-grains was higher than that by consumption of cooked white rice when adjusted for age. No association with a risk for metabolic syndrome was found for quartile of percent energy intake from cooked rice or cooked rice mixed with multi-grains compared to cooked white rice after adjusting for energy, gender, age, BMI, alcohol, smoking, income and physical activity. In conclusion, consumption of over 54% energy intake from cooked rice or only cooked white rice showed relatively low INQs, but was not associated with a higher risk for metabolic syndrome.

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Associations of Whole Grain and Refined Grain Consumption With Metabolic Syndrome. A Meta-Analysis of Observational Studies
Hongbin Guo, Jun Ding, Jieyu Liang, Yi Zhang
Frontiers in Nutrition.2021;[Epub] CrossRef
Association of Korean fermented cabbage kimchi consumption with an incidence of metabolic syndrome: 10-year follow-up results of the Korean Genome and Epidemiology Study
Suk Hyeon Seo, Jiyoun Hong, Im Huei Son, Young Hee Han, Taisun Hyun
Journal of Nutrition and Health.2019; 52(6): 569. CrossRef
Dietary quality differs by consumption of meals prepared at home vs. outside in Korean adults
Kyung Won Lee, Won O. Song, Mi Sook Cho
Nutrition Research and Practice.2016; 10(3): 294. CrossRef
Diet Pattern According to Socio-Economic status - Using the Fifth (2010-2012) Korea National Health and Nutrition Examination Survey
Han Na Kim, Hyo Eun Park
The International Journal of Advanced Culture Technology.2016; 4(3): 24. CrossRef
Evaluation of Obesity and Nutritional Status by Age among Low-income Women aged over 20 -Using Data from the Fourth Korea National Health and Nutrition Examination Survey-
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The Development of Institutional Food-Service Menu with Temple Food
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Korean Journal of Community Nutrition.2015; 20(5): 338. CrossRef
Adequate Standard Pot and Number of Plants Per Tree of Raising Seeding Pot on the Foxtail Millet Transplanting Culture in the Southern Province
Yong-Soon Kim, Dong-Kwan Kim, Jin-Gyung Choi, Heung-Gyu Park, Myeong-Seok Kim, Hae-Ryoung Shin, Gyung-Ju Choi, Jong-Tag Yun
The Korean Journal of Crop Science.2015; 60(1): 23. CrossRef
Analysis of Dietary Intake Status and Risk of Metabolic Syndrome According to White Rice Consumption in Korea: Basted on Data 1st (1998), 4th (2007~2009), 6th (2013) Korean National Health and Nutrition Examination Survey (KNHANES)
Fang-Fang Song, Jin-A Jang, Yang-suk Kim, Hei-ryeo Yoon, Mi-Sook Cho
Journal of The Korean Society of Food Culture.2015; 30(5): 682. CrossRef
The Effect on Behavior of Instant Rice Selected Attributes According to Food Lifestyle
Inja Youn, Sohyeong Myeong, Deokihn Yoon
Journal of The Korean Society of Food Culture.2015; 30(6): 804. CrossRef
The Relationship between Health Behavior and General Health Status: Based on 2011 Korea National Health and Nutrition Examination Survey
Chunhoo Cheon, So-Mi Oh, Soobin Jang, Jeong-Su Park, Sunju Park, Bo-Hyoung Jang, Yong-Cheol Shin, Seong-Gyu Ko
Osong Public Health and Research Perspectives.2014; 5(1): 28. CrossRef
An Evaluation of Dietary Habit and Nutritional Status by Household Income in Female Adults over the Age of 20 - Using Data from the Fourth Korea National Health and Nutrition Examination Survey -
Hee-Kyung Jang
The Korean Journal of Food And Nutrition.2014; 27(4): 660. CrossRef
The Risk of Metabolic Syndrome by Dietary Patterns of Middle-aged Adults in Gyeonggi Province
You-Sin Lee, Moo-Yong Lee, Sim-Yeol Lee
Korean Journal of Community Nutrition.2014; 19(6): 527. CrossRef
Cooking Properties and Antioxidant Activity of Cooked Rice According to the Addition of Glutinous and Non-glutinous Sorghum
Koan Sik Woo, Jee Yeon Ko, Jung In Kim, Jae Saeng Lee, Seuk Bo Song, Jae Min Cho, Tae Wook Jung, Ki Young Kim, In Seok Oh
Korean Journal of Crop Science.2013; 58(4): 399. CrossRef
Nutritional Assessment and Perioperative Nutritional Support in Gastric Cancer Patients
Kyung Won Seo, Ki Young Yoon
The Korean Journal of Gastroenterology.2013; 61(4): 186. CrossRef

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[English]
Nutrient Intake, Lifestyle Factors and Prevalent Hypertension in Korean Adults: Results from 2007-2008 Korean National Health and Nutrition Examination Survey: Sle Koo, Youngok Kim, Mi Kyung Kim, Jin Sook Yoon, Kyong Park; Korean J Community Nutr 2012;17(3):329-340. Published online June 30, 2012; DOI: https://doi.org/10.5720/kjcn.2012.17.3.329

Abstract PDF PubReader

Hypertension is a well-known risk factor for cardiovascular disease. Previous studies have shown that changes in diet and lifestyle factors can prevent the development of hypertension, but the combined effects of these modifiable factors on hypertension are not well established. The objective of this study is to investigate associations of diet and lifestyle factors, evaluated both individually and in combination, with prevalent hypertension among Korean adults. We analyzed data obtained from the 2007-2008 Korean National Health and Nutritional Examination Survey, a nationwide cross-sectional study using a stratified, multistage probability sampling design. The associations of 12 nutrient intakes and lifestyle factors with risk of hypertension were explored using restricted cubic spline regression and logistic regression models among 6,351 adults. Total energy and several nutrients and minerals, including, calcium, vitamin A, vitamin C, and sodium, showed non-linear relationships with the risk of prevalent hypertension. In multivariate logistic regression models, dietary score, obesity and alcohol intake were independently associated with the risk of prevalent hypertension, but smoking and physical activity were not. Overall, participants whose dietary habits and lifestyle factors were all in the low-risk group had 68% lower prevalence of hypertension (OR: 0.32, 95 CI: 0.14-0.74) compared to those who were at least one in the high-risk group of any dietary or lifestyle factors. The result suggests that combined optimal lifestyle habits are strongly associated with lower prevalence of hypertension among Korean adults.

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Sook-Hyun Jun, Woo-Kyoung Shin, Yookyung Kim
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The relationship of dietary sodium, potassium, fruits, and vegetables intake with blood pressure among Korean adults aged 40 and older
Mi Kyung Kim, Kirang Kim, Min-Ho Shin, Dong Hoon Shin, Young-Hoon Lee, Byung-Yeol Chun, Bo Youl Choi
Nutrition Research and Practice.2014; 8(4): 453. CrossRef
An Analysis of Food Consumption Patterns of the Elderly from the Korea National Health and Nutrition Examination Survey (KNHANES Ⅴ-1)
Eun Mi Kim, Mi-Kyung Choi
Journal of the Korean Society of Food Science and Nutrition.2013; 42(5): 818. CrossRef
Prevalence of Hypertension and Related Risk Factors in the Elderly: Data from the 4th Korean National Health & Nutrition Examination Survey, 2007~2009
Hye-Sang Lee
Journal of the Korean Dietetic Association.2013; 19(1): 14. CrossRef
Association of Bone Mineral Density and Blood Pressure, Calcium Intake among Adult Women in Seoul · Kyunggi Area - Based on 2011 KNHANES -
Jae Ok Koo
Korean Journal of Community Nutrition.2013; 18(3): 269. CrossRef

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[English]
Egg Consumption and Prevalence of Metabolic Syndrome in Korean Adults: Based on 2007-2008 Korean National Health and Nutrition Examination Survey: Hyo Jin Kim, Kyong Park; Korean J Community Nutr 2011;16(3):364-374. Published online June 30, 2011; DOI: https://doi.org/10.5720/kjcn.2011.16.3.364

Abstract PDF PubReader

There is a great public concern that higher consumption of eggs may increase the risk of chronic disease due to high levels of cholesterol in eggs. In contrast to this concern, limited studies have examined this relationship, and the study results have been inconsistent. This study was to evaluate the cross-sectional associations between egg consumption, blood markers and metabolic syndrome in Korean adults. We analyzed data from the combined 2007-2008 Korean National Health and Nutrition Examination Survey (KNHANES). Egg intakes were assessed using a food frequency questionnaire. Metabolic syndrome was ascertained using criteria of the NCEP ATP III (2001) and abdominal obesity criteria of the WHO. In 5,548 subjects, 937 subjects were defined as having metabolic syndrome. In linear regression models, subjects reporting one or more egg consumption per day had significantly lower levels of triglyceride, fasting blood glucose and blood pressure, and a higher level of HDL cholesterol, compared to those who rarely consumed eggs (P-trends < 0.05). After adjustments for potential confounding factors, the associations were no longer significant except for total cholesterol, showing higher levels with frequent egg consumption. More frequent intakes of egg (1 egg or more/day) were associated with lower risk of metabolic syndrome in a logistic regression model (OR: 0.69, 95% CI: 0.50-0.96), but this association also became insignificant after adjustments for multiple confounding factors (OR: 1.05, 95% CI: 0.71-1.57). In healthy Korean adults, frequent intakes of eggs did not adversely affect the risk of metabolic syndrome. Further studies are needed to confirm this finding.

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