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Original Article
A prospective association between dietary mushroom intake and the risk of type 2 diabetes: the Korean Genome and Epidemiology Study–Cardiovascular Disease Association Study
Yu-Mi Kim, Hye Won Woo, Min-Ho Shin, Sang Baek Koh, Hyeon Chang Kim, Mi Kyung Kim
Epidemiol Health. 2024;46:e2024017.   Published online January 8, 2024
DOI: https://doi.org/10.4178/epih.e2024017
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AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
Mushrooms, known for their nutritious and functional components, are considered healthy and medicinal. This study investigated the prospective association between dietary mushroom consumption and the incidence of type 2 diabetes among Korean adults aged ≥40 years.
METHODS
In total, 16,666 participants who were not taking anti-diabetic medication or insulin and had normal fasting blood glucose (FBG; <126 mg/dL) were included. We used the cumulative average dietary consumption of mushrooms as an exposure metric, calculated from food frequency questionnaires at every follow-up, along with covariates collected during a baseline survey. To estimate incidence rate ratios (IRRs) for type 2 diabetes, a modified Poisson regression model with a robust error estimator was applied.
RESULTS
In multivariable models, dietary mushroom consumption was inversely associated with type 2 diabetes incidence in both genders (men: IRR, 0.65; 95% confidence interval [CI], 0.47 to 0.90; p<sub>linearity</sub>=0.043 in the highest quartile (Q4) vs. the lowest quartile (Q1); women: IRR, 0.70; 95% CI, 0.54 to 0.93; p<sub>linearity</sub>=0.114 in Q4 vs. Q1). The inverse association remained after adjustment for dietary factors instead of dietary quality index, the baseline FBG, and the exclusion of incidence within the first year. Additionally, no significant interaction was found regarding the risk of type 2 diabetes between dietary mushroom consumption and participants’ gender or other factors.
CONCLUSIONS
Dietary mushroom consumption was inversely linked with the risk of type 2 diabetes incidence in both genders, indicating the beneficial role of mushrooms in preventing the disease.
Summary
Korean summary
- 흔히 사용하는 버섯의 식이 섭취량이 증가함에 따라 한국 40세 이상 성인에서 제2형 당뇨병 발생 위험이 낮았다. - 이러한 역관계는 성별과 다양한 식이 배경에서도 일관성을 유지하였고, 이는 버섯이 제2형 당뇨병 예방에 있어 잠재적인 식이요소로서의 가능성을 보여주는성을 보여주는 보여주는 결과이다.
Systematic Review
Dietary intake and cancer incidence in Korean adults: a systematic review and meta-analysis of observational studies
Ji Hyun Kim, Shinyoung Jun, Jeongseon Kim
Epidemiol Health. 2023;45:e2023102.   Published online November 30, 2023
DOI: https://doi.org/10.4178/epih.e2023102
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
Cancer is a major health burden in Korea, and dietary factors have been suggested as putative risk factors for cancer development at various sites. This study systematically reviewed the published literature investigating the associations between dietary factors and cancer incidence among Korean adults, following the Preferred Reporting Items for Systematic Reviews and Meta- Analyses guidelines. We focused on the 5 most studied cancer sites (stomach, colorectum, breast, thyroid, and cervix) as outcomes and dietary exposures with evidence levels greater than limited-suggestive according to the World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) panel’s judgment for any of the cancer sites. This resulted in the inclusion of 72 studies. Pooled estimates of the impact of dietary factors on cancer risk suggested protective associations of fruits and vegetables with risks for gastric cancer (GC), colorectal cancer (CRC), and breast cancer (BC) and dietary vitamin C with the risk of GC, as well as a harmful association between fermented soy products and the risk of GC. Despite the limited number of studies, we observed consistent protective associations of dietary fiber with GC and dietary fiber, coffee, and calcium with CRC. These findings are largely consistent with the WCRF/AICR expert report. However, pooled estimates for the associations of other salt-preserved foods with GC, meat with CRC, and dietary carotenoids and dairy products with BC did not reach statistical significance. Further studies with prospective designs, larger sample sizes, and diverse types of dietary factors and cancer sites are necessary.
Summary
Korean summary
한국 성인을 대상으로 주요 암종 발생과 관련된 식이 요인을 탐색한 72개 역학연구들을 체계적으로 리뷰하고 메타 분석한 결과, 과일 및 채소는 위암, 대장암, 유방암에 대한 보호 효과가 있으며, 식이 비타민 C는 위암 예방에 도움이 된다는 결과가 확인되었다. 반면, 염장 식품 중 발효 대두 제품은 위암 발생 위험을 증가시킬 수 있다. 향후 식이 섭취와 밀접하게 관련되었으나 기존 국내 연구가 부족한 암종과 다양한 식이 요인의 영향을 탐색하는 대규모 전향적 코호트 연구가 요구된다.
Key Message
We conducted a systematic review and meta-analysis on the associations between dietary factors and cancer incidence among Korean adults. Pooled estimates suggested protective associations of fruits and vegetables with risks for gastric cancer (GC), colorectal cancer (CRC), and breast cancer (BC) and dietary vitamin C with the risk of GC, as well as a harmful association between fermented soy products and GC risk. Further research is warranted, emphasizing longitudinal designs, larger sample sizes, and a comprehensive exploration of dietary factors, with a specific focus on anatomical sites with a substantial burden of disease but understudied in the context of diet.
Original Articles
Effects of multigrain rice and white rice on periodontitis: an analysis using data from the Korea National Health and Nutrition Examination Survey 2012-2015
Seung-Hee Ryu, Zi-lan Wang, Seon-Jip Kim, Hyun-Jae Cho
Epidemiol Health. 2023;45:e2023063.   Published online July 3, 2023
DOI: https://doi.org/10.4178/epih.e2023063
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AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
Numerous studies have investigated the efficacy of whole grains; however, research on multigrain remains limited. Grains exhibit combined positive effects against various diseases. The purpose of this study was to examine the impact of multigrain and white rice consumption on periodontitis.
METHODS
We analyzed data from the Korea National Health and Nutrition Examination Survey V-3 and VI, collected between 2012 and 2015, which included 12,450 patients (4,859 male and 7,591 female) aged 19-64 years. The World Health Organization’s Community Periodontal Index (CPI) was utilized to assess the presence of periodontitis, with periodontitis defined as a CPI index score of ≥3. Multivariable logistic regression analysis was performed after adjusting for potential confounding variables.
RESULTS
The group that consumed only multigrain rice was less likely to have periodontitis than the group that consumed only white rice (odds ratio [OR], 0.80; 95% confidence interval [CI], 0.69 to 0.93). When stratified by sex, the risk of periodontitis demonstrated a 24% decrease in female who consumed only multigrain rice (OR, 0.76; 95% CI, 0.62 to 0.93). A similar result was observed in the age group of 40-64 years (OR, 0.84; 95% CI, 0.71 to 0.99). In the diabetes stratification model, the normal group that consumed only multigrain rice exhibited a 25% decrease in the odds of periodontitis (OR, 0.75; 95% CI, 0.62 to 0.91).
CONCLUSIONS
Our findings suggest that the prevalence of periodontitis may vary depending on the type of rice consumed.
Summary
Korean summary
본 연구에서는 우리나라의 대규모 자료를 이용하여 쌀 섭취 종류가 치주염 위험에 미치는 영향을 살펴보았다. 우리의 연구 결과는 잡곡밥을 매일 2회 이상 섭취하는 것이 흰쌀밥을 먹는 것보다 치주염 예방에 더 효과적이라는 것을 보여준다. 이러한 결과는 당뇨병이 있는 사람에 비해 건강한 사람, 남성보다는 여성, 40~64세에서 더 큰 예방 효과를 시사한다.
Key Message
In this study, we examined the impact of different types of rice consumption on the risk of periodontitis using large-scale data from Korea. The group that consumed only multigrain rice was less likely to have periodontitis than the group that consumed only white rice (odds ratio [OR]=0.80; 95% confidence interval [CI], 0.69–0.93). The risk of periodontitis was reduced by 24% in female who consumed only multigrain rice, 16% decrease in the 40–64 age group, and in the diabetic stratification model, the normal group who consumed only multigrain rice had a 25% decrease in periodontitis risk.
Regional differences in the associations of diet quality, obesity, and possible sarcopenia using the seventh Korea National Health and Nutrition Examination Survey (2016-2018)
Hyeongyeong Lee, Sohyun Park
Epidemiol Health. 2023;45:e2023059.   Published online June 19, 2023
DOI: https://doi.org/10.4178/epih.e2023059
  • 3,620 View
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  • 1 Web of Science
  • 2 Crossref
AbstractAbstract PDF
Abstract
OBJECTIVES
Sarcopenic obesity is closely related to aging and the prevalence of various chronic diseases and frailty. The purpose of this study was to analyze whether diet quality is related to obesity, sarcopenia, and sarcopenic obesity, and if so, to explore the difference in that relationship between urban and rural settings.
METHODS
Using data from the Korea National Health and Nutrition Examination Survey of 2016-2018, a total of 7,151 participants aged 40 years or older were analyzed. Sarcopenia was diagnosed using handgrip strength. Diet quality was assessed using Korea Healthy Eating Index (KHEI) scores, and obesity was determined based on participants’ abdominal circumference. Multinomial logistic analysis was used for testing statistical significance.
RESULTS
Rural participants had significantly lower KHEI scores and a higher prevalence of sarcopenic obesity than urban participants. The study findings demonstrate that participants without obesity, sarcopenia, or sarcopenic obesity had significantly higher KHEI scores in both rural and urban settings. Multinomial regression analysis further revealed that a higher KHEI score was associated with a lower risk of sarcopenia and sarcopenic obesity among urban residents, while only the risk of obesity was lower with higher diet quality scores among rural residents.
CONCLUSIONS
Since diet quality and health status were lower in rural areas, it is important to address this regional disparity with appropriate policy measures. To mitigate urban health disparities, urban residents in poor health with few resources should also be supported.
Summary

Citations

Citations to this article as recorded by  
  • Association of Dietary Protein Sources and Their Adequacy, Body Composition and Risk of Sarcopenic Obesity in South Korean Populations: A Cross-Sectional Study
    Jieun Kim, Kyoungsik Jeong, Sueun Lim, Siwoo Lee, Younghwa Baek
    Metabolites.2024; 14(2): 130.     CrossRef
  • Association of Combining Diet and Physical Activity on Sarcopenia and Obesity in Elderly Koreans with Diabetes
    Sohye Kim, Soojeong Kim, Kyung Hee Hong
    Nutrients.2024; 16(7): 964.     CrossRef
The association of dietary patterns with incident chronic kidney disease and kidney function decline among middle-aged Korean adults: a cohort study
Jialei Fu, Sangah Shin
Epidemiol Health. 2023;45:e2023037.   Published online March 21, 2023
DOI: https://doi.org/10.4178/epih.e2023037
  • 3,018 View
  • 95 Download
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
This study assessed the association of dietary patterns with the incidence of chronic kidney disease (CKD) and kidney function decline among Korean adults.
METHODS
Data were collected from the records of 20,147 men and 39,857 women who participated in the Health Examinees study. Principal component analysis was used to identify 3 dietary patterns (prudent, flour-based food and meat, and white rice-based), and CKD risk was defined using the Epidemiology Collaboration equation for estimated glomerular filtration rate: (eGFR) <60 mL/min/1.73 m<sup>2</sup>. A kidney function decline was defined as a >25% decrease in eGFR from baseline.
RESULTS
During the 4.2-year follow-up, 978 participants developed CKD and 971 had a 25% decline in kidney function. After adjusting for potential impact variables, compared with the lowest quartile of the prudent dietary pattern, participants in the highest quartile had a 37% lower risk of kidney function decline among men (hazard ratio [HR], 0.63; 95% confidence interval [CI], 0.47 to 0.85); while higher adherence to the flour-based food and meat dietary pattern was associated with an increased risk of CKD in both men (HR, 1.63; 95% CI, 1.22 to 2.19) and women (HR, 1.47; 95% CI, 1.05 to 2.05) as well as a decline in kidney function in both men (HR, 1.49; 95% CI, 1.07 to 2.07) and women (HR, 1.77; 95% CI, 1.33 to 2.35).
CONCLUSIONS
Although a higher adherence to the prudent dietary pattern was inversely associated with the risk of kidney function decline in men, there was no association with CKD risk. In addition, a higher adherence to the flour-based food and meat dietary pattern increased the risk of CKD and kidney function decline. Further clinical trials are needed to confirm these associations.
Summary
Korean summary
건강한 식이패턴(prudent dietary pattern)은 한국 남성의 신장기능 저하 위험을 감소와 관련성이 있었다. 반면, 밀가루 음식과 육류 위주의 식이패턴(Flour-based food and meat dietary pattern)은 남성과 여성 모두에서 신장 기능 저하 위험뿐만 아니라, 만성신장질환(CKD) 위험의 증가와 관련이 있었다. 본 연구의 결과는 한국 성인에서 식사패턴이 신장 기능 및 만성 신장 질환의 발생에 미치는 영향을 확인하였다.
Key Message
1. Better adherence to the prudent dietary pattern may lower the risk of kidney function decline in Korean man. 2. A higher adherence to the flour-based food and meat dietary pattern may higher the risk of chronic kidney disease and kidney function decline.
COVID-19: Health Statistics
Changes in food and nutrient intakes in Korean adults before and during the COVID-19 pandemic: data from the 2011-2020 Korea National Health and Nutrition Examination Survey
Kyungwon Oh, Suyeon Park, Sihyun Park, Sungha Yun, Hongseok Choi, Eun Kyeong Jeong
Epidemiol Health. 2023;45:e2023015.   Published online February 1, 2023
DOI: https://doi.org/10.4178/epih.e2023015
  • 4,497 View
  • 237 Download
  • 1 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
This study was to examine the changes in dietary habits and food and nutrient intakes between before (2019) and during (2020) the coronavirus disease 2019 (COVID-19) pandemic from the Korea National Health and Nutrition Examination Survey (KNHANES).
METHODS
A total of 54,995 participants aged ≥19 years who participated in the 2011-2020 KNHANES were included. The 10-year trend (2011-2020) and differences between 2019 and 2020 for dietary habits and food and nutrient intakes were estimated using SAS.
RESULTS
In the past 10 years (2011-2020), the dietary habits (increase in skipping meals and eating out), food intake (increase in meats and decrease in fruits and vegetables), and nutrient intake (increase in fat and decrease in sodium) in adults have changed. When comparing between 2019 and 2020, there were 4.6%p decrease in the eating out more than once a day. On the other hand, there were no significant differences in the intakes of food, energy and most of nutrients between 2019 and 2020, except for the proportion of energy intake from fat (1.0%p increase) and carbohydrate (1.0%p decrease).
CONCLUSIONS
Although a change in dietary habits from before to during the COVID-19 pandemic was observed, food and nutrient intakes have not deteriorated markedly and appear similar to the trends in the past 10 years. Throughout the COVID-19 pandemic, it is necessary to monitor the effects of changes in dietary habits on health as well as food and nutrient intakes.
Summary
Korean summary
코로나19 유행 전, 후 비교 시, 외식 감소, 가정식 섭취 증가 등 식생활은 변화가 있었으나 주요 식품 및 영양소 섭취는 큰 변화없이 최근 10년간의 추이가 지속되고 있었다.
Key Message
Although a change in dietary habits from before to during the COVID-19 pandemic was observed, food and nutrient intakes have not deteriorated markedly and appear similar to the trends in the past 10 years in Korean adults.

Citations

Citations to this article as recorded by  
  • Comparative study on the health and dietary habits of Korean male and female adults before and after the coronavirus disease 2019 pandemic: utilizing data from the 8th Korea National Health and Nutrition Examination Survey (2019–2021)
    Chaemin Kim, Eunjung Kim
    Korean Journal of Community Nutrition.2024; 29(1): 65.     CrossRef
Systematic Review
Associations of daily diet-related greenhouse gas emissions with the incidence and mortality of chronic diseases: a systematic review and meta-analysis of epidemiological studies
Jee Yeon Hong, Young Jun Kim, Sanghyuk Bae, Mi Kyung Kim
Epidemiol Health. 2023;45:e2023011.   Published online December 30, 2022
DOI: https://doi.org/10.4178/epih.e2023011
  • 3,990 View
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Although the entire process extending from food production to dietary consumption makes a large contribution to total greenhouse gas (GHG) emissions, little and inconsistent evidence exists on the epidemiological associations of daily diet-related GHG emissions with chronic disease risk or all-cause mortality. This systematic review and meta-analysis explored the observational epidemiological relationship between daily diet-related GHG emissions and health outcomes, including the risk of chronic diseases and all-cause mortality.
METHODS
Original articles published in English until May 2022 were identified by searching PubMed, Ovid-Embase, Web of Science, CINAHL, and Google Scholar. The extracted data were pooled using both fixed-effects and random-effects meta-analyses and presented as hazard and risk ratios (RRs) with 95% confidence intervals (CIs).
RESULTS
In total, 7 cohort studies (21 study arms) were included for qualitative synthesis and meta-analysis. The GHG emissions of dietary consumption showed a significant positive association with the risk of chronic disease incidence and mortality in both fixed-effects and random-effects models (fixed: RR, 1.04; 95% CI, 1.03 to 1.05; random: RR, 1.04; 95% CI, 1.02 to 1.06). This positive association was robust regardless of how daily diet-related GHG emissions were grouped. More strongly animal- based diets showed higher GHG emissions. However, there were only a few studies on specific chronic diseases, and the subgroup analysis showed insignificant results. There was no evidence of publication bias among the studies (Egger test: p=0.79).
CONCLUSIONS
A higher GHG-emission diet was found to be associated with a greater risk of all-cause mortality.
Summary
Korean summary
식이로부터 배출되는 GHG양은 메타분석의 고정 효과 모델과 확률 효과 모델 모두에서 만성 질환 발병률 및 사망 위험과 유의미한 양의 상관 관계를 보여주었습니다. 동물성 식단은 더 높은 GHG 배출량을 나타냈으나, 특정 만성질환에 대한 연구의 수가 적었고 질환 별 하위군 분석에서 유의미한 결과를 보이지 않았습니다. 결론적으로 온실가스 배출량이 많은 식단은 모든 원인으로 인한 사망 위험이 더 큰 것으로 나타났습니다.
Key Message
Daily food consumption contributes a large part of greenhouse gas (GHG) emissions, however, no review study was conducted. This study is the first review paper that reviews the relationship between greenhouse gas (GHG) emissions from daily diet and chronic disease risk and all-cause mortality. GHG emissions from the daily diet were significantly positively associated with disease risk and mortality. Animal-based diets contributed most to diet-derived GHG emissions. Men tended to have diets with higher GHG emissions compared to women. At times when the response to climate change is urgent, this study can help many policymakers and health officials.
Original Articles
Association of the inflammatory balance of diet and lifestyle with colorectal cancer among Korean adults: a case-control study
Shinyoung Jun, Jeonghee Lee, Jae Hwan Oh, Hee Jin Chang, Dae Kyung Sohn, Aesun Shin, Jeongseon Kim
Epidemiol Health. 2022;44:e2022084.   Published online September 30, 2022
DOI: https://doi.org/10.4178/epih.e2022084
  • 4,290 View
  • 185 Download
  • 2 Web of Science
  • 3 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Dietary and lifestyle exposures may affect the risk of colorectal cancer (CRC) by promoting chronic inflammation. Therefore, we assessed the separate and joint associations of dietary and lifestyle inflammation scores (DIS and LIS, respectively) with CRC.
METHODS
Data from 919 pathologically confirmed CRC cases and 1,846 age- and sex-matched controls recruited at the National Cancer Center Korea were analyzed. We calculated the DIS and LIS, which characterize the collective contributions of 19 dietary and 4 lifestyle factors, respectively, to systemic inflammation by applying weights based on high-sensitivity C-reactive protein. A higher score represented a higher balance of pro- to anti-inflammatory exposures. Unconditional logistic regression models were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for CRC risk compared across the DIS and LIS tertile categories, with the lowest tertile as the reference group.
RESULTS
The highest DIS tertile had significantly increased odds of having CRC (OR, 2.65; 95% CI, 2.10 to 3.36), and the odds increased with increasing DIS. The highest LIS tertile group had 1.28-fold higher odds of having CRC (95% CI, 1.03 to 1.58). In the cross-classification analysis, the odds of having CRC increased as the DIS and LIS jointly increased until the DIS reached the highest tertile, where the risk was very high (3-fold or more) regardless of the LIS.
CONCLUSIONS
In conclusion, a higher balance of pro-inflammatory relative to anti-inflammatory dietary and lifestyle factors, especially dietary factors, was associated with higher CRC risk among Korean adults.
Summary
Korean summary
본 연구는 국립암센터에서 수집한 대장암 환자-대조군 데이터를 활용하여, 새롭게 개발된 식이 염증 지수(Dietary Inflammation Score, DIS) 및 생활습관 염증 지수(Lifestyle Inflammation Score, LIS)와 대장암 발생 위험 간의 연관성을 탐색하였다. 분석 결과, 식이 염증 지수 혹은 생활습관 염증 지수가 높은 집단에서 대장암 위험이 더 높아, 식이와 생활습관이 체내 염증 수준을 높여 대장암 발생 위험을 높일 가능성이 제기되었다
Key Message
Dietary inflammation score (DIS) and lifestyle inflammation score (LIS) quantify the collective effect of dietary and lifestyle factors, respectively, on systemic inflammation. In this case-control study, we assessed the associations of DIS and LIS with colorectal cancer risk among Korean adults. Our results suggest that a higher balance of pro-to anti-inflammatory dietary and lifestyle factors may be associated with higher risk for colorectal cancer. The findings from our study support that reducing inflammation through dietary or lifestyle changes could potentially reduce the risk for colorectal cancer.

Citations

Citations to this article as recorded by  
  • The association of diet-dependent acid load with colorectal cancer risk: a case–control study in Korea
    Tao Thi Tran, Madhawa Gunathilake, Jeonghee Lee, Jae Hwan Oh, Hee Jin Chang, Dae Kyung Sohn, Aesun Shin, Jeongseon Kim
    British Journal of Nutrition.2024; 131(2): 333.     CrossRef
  • Gout and Colorectal Cancer Likelihood: Insights from a Nested Case-Control Study of the Korean Population Utilizing the Korean National Health Insurance Service-National Sample Cohort
    Mi Jung Kwon, Kyeong Min Han, Joo-Hee Kim, Ji Hee Kim, Min-Jeong Kim, Nan Young Kim, Hyo Geun Choi, Ho Suk Kang
    Cancers.2023; 15(23): 5602.     CrossRef
  • Dietary intake and cancer incidence in Korean adults: a systematic review and meta-analysis of observational studies
    Ji Hyun Kim, Shinyoung Jun, Jeongseon Kim
    Epidemiology and Health.2023; 45: e2023102.     CrossRef
Positive association of unhealthy plant-based diets with the incidence of abdominal obesity in Korea: a comparison of baseline, most recent, and cumulative average diets
Sukyoung Jung, Sohyun Park
Epidemiol Health. 2022;44:e2022063.   Published online August 2, 2022
DOI: https://doi.org/10.4178/epih.e2022063
  • 5,806 View
  • 267 Download
  • 1 Web of Science
  • 2 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Different approaches for analyzing repeated dietary measurements may yield differences in the magnitude and interpretation of findings. We aimed to compare 3 dietary measurements (baseline, most recent, and cumulative average) in terms of the association between plant-based diet indices (PDIs) and incident abdominal obesity in Korean adults aged 40-69 years.
METHODS
This study included 6,054 participants (54% women) free of abdominal obesity (defined as waist circumference ≥90 cm for men and ≥85 cm for women) at baseline. As exposures, baseline, most recent, and cumulative average measurements for PDI, healthy-PDI (hPDI), and unhealthy-PDI (uPDI) were created. A Cox proportional-hazard model was used to estimate the hazard ratios (HRs) for abdominal obesity.
RESULTS
During 45,818 person-years of follow-up (median, 9 years), we identified 1,778 incident cases of abdominal obesity. In the multivariable-adjusted analysis, a higher uPDI was associated with a higher risk of abdominal obesity in both total and stratified analyses. The findings were consistent across all approaches (Q5 vs. Q1: HRbaseline=1.70; 95% confidence interval [CI], 1.46 to 1.98; HRmost recent=1.52; 95% CI, 1.30 to 1.78; HRcumulative average=1.76; 95% CI, 1.51 to 2.06 in the total set). PDI showed no meaningful association with abdominal obesity risk in any analyses. hPDIaverage had a suggestive inverse association with abdominal obesity risk in men, and hPDIbaseline had a positive association with abdominal obesity risk in women.
CONCLUSIONS
Greater adherence to unhealthy plant-based diets may increase the risk of developing abdominal obesity in Korean adults. The findings were generally consistent across all approaches.
Summary
Korean summary
본 연구는 한국인 유전체역학조사사업의 안성안산코호트 조사에 참여한 40-69세 한국 성인 6,054명을 대상으로 식물성 기반의 식이 지수와 복부비만 간 연관성이 식이 노출 기간(기반, 최근, 누적 노출)에 따라 어떻게 다른지 비교 분석하였다. 건강하지 않은 식물성 기반의 식이 지수 점수가 높을수록 복부비만 발생 위험이 증가하였고, 식이 노출 기간에 관계없이 일관된 결과를 보였다. 식물성 기반의 식이가 반드시 건강에 유익한 것은 아니며, 정제된 곡물, 탄산음료, 사탕 등 간식류를 많이 먹는 식이 패턴은 식물성 기반 식이라 할지라도 복부비만 위험을 증가시킬 수 있으므로 주의가 필요하다.
Key Message
Unhealthy plant-based diets, including refined grains, sugar-sweetened beverages, sweets and desserts, and salty plant foods, can have a negative effect on abdominal obesity in Korean adults regardless of its exposure duration.

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  • Plant-based diets and the gut microbiome: findings from the Baltimore Longitudinal Study of Aging
    Xinyi Shen, Curtis Tilves, Hyunju Kim, Toshiko Tanaka, Adam P Spira, Chee W Chia, Sameera A. Talegawkar, Luigi Ferrucci, Noel T Mueller
    The American Journal of Clinical Nutrition.2024; 119(3): 628.     CrossRef
  • Scoping review of the association of plant-based diet quality with health outcomes
    Richard M. Rosenfeld, Hailey M. Juszczak, Michele A. Wong
    Frontiers in Nutrition.2023;[Epub]     CrossRef
The association between fruit and vegetable consumption and metabolic syndrome in Korean adults: does multivitamin use matter?
Jihae Kim, Li-Juan Tan, Hyein Jung, Yumi Roh, Kyungjoon Lim, Sangah Shin
Epidemiol Health. 2022;44:e2022039.   Published online April 19, 2022
DOI: https://doi.org/10.4178/epih.e2022039
  • 9,021 View
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  • 1 Web of Science
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Metabolic syndrome (MetS) is closely associated with dietary intake; however, few studies have investigated whether the consumption of fruits and vegetables and multivitamin use affect MetS in the Korean population. This study aimed to examine these effects in Korean adults.
METHODS
This was a cross-sectional study of 89,548 participants aged between 40 years and 69 years selected from the baseline data of the Health Examinees study conducted in Korea. Fresh vegetable and fruit consumption was assessed using a validated 106-item food frequency questionnaire. MetS and its components were defined using the National Cholesterol Education Program, Adult Treatment Panel III criteria. Multivariate logistic regression analyses were conducted to identify associations of fresh vegetable, fruit, and fresh vegetable+fruit consumption and multivitamin use with the prevalence of MetS.
RESULTS
Female in the highest quartile of fresh vegetable, fruit, and fresh vegetable + fruit consumption exhibited a lower prevalence of MetS than those in the lowest quartile. An inverse association with the prevalence of MetS was observed among male with only fresh vegetable consumption. The interaction between the 3 categories and multivitamin intake on the prevalence of MetS was not significant (all p<sub>interaction</sub>>0.05), regardless of sex.
CONCLUSIONS
Multivitamin use and consumption of fresh vegetables and fruits had no significant synergistic effects. Although fresh vegetable and fruit consumption showed an inverse association with the prevalence of MetS, this relationship was not altered by multivitamin use.
Summary
Korean summary
본 연구는 한국인 유전체역학조사사업의 도시코호트 조사에 참여한 40-69세 한국 성인 89 548명의 과일과 채소의 섭취와 종합비타민 섭취가 대사증후군에 미치는 영향을 분석하였다. 본 연구에서는 매일 다양한 과일과 채소를 섭취하면, 종합비타민의 섭취와 상관없이 대사증후군 유병 위험도를 낮추는 것을 확인하였다. 따라서, 대사증후군 예방을 위해서는 일상적인 식사에서 충분한 과일과 채소를 섭취하는 것이 권장된다.
Key Message
This study aimed to examine whether the consumption of fruits and vegetables and multivitamin use affect MetS among Korean middle-aged adults. Data was from the Health Examinees Study among 89 548 subjects. Results suggested that fruits and vegetables consumption was related with a decreased prevalence of MetS. However, there was no significant synergistic effect between the consumption of fruits and vegetables and multivitamin use in further reducing MetS prevalence.

Citations

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  • Association of serum water-soluble vitamin exposures with the risk of metabolic syndrome: results from NHANES 2003-2006
    Xun Pei, Junjie Yao, Simiao Ran, Haifei Lu, Shuo Yang, Yini Zhang, Miyuan Wang, Heyuan Shi, Aihua Tan
    Frontiers in Endocrinology.2023;[Epub]     CrossRef
Nutrient intake patterns and breast cancer risk among Jordanian women: a case-control study
Reema Fayez Tayyem, Reema Ibrahim Mahmoud, Muna Hussien Shareef, Lina Salah Marei
Epidemiol Health. 2019;41:e2019010.   Published online March 30, 2019
DOI: https://doi.org/10.4178/epih.e2019010
  • 35,520 View
  • 265 Download
  • 9 Web of Science
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AbstractAbstract PDF
Abstract
OBJECTIVES
Breast cancer (BC) is the most common type of cancer worldwide. Globally, BC is rapidly becoming a major common health problem among women. This study aimed to evaluate the association between nutrient intake patterns and BC risk among Jordanian women.
METHODS
A total of 400 Jordanian women 20-65 years of age were recruited in this case-control study. Two hundred women recently diagnosed with BC were matched in age, income, and marital status to 200 BC-free women. A food frequency questionnaire was used to assess nutrient intake patterns.
RESULTS
In this study, 3 nutrient intake patterns were identified: a high vitamin C and β-carotene nutrient intake pattern; a high calcium, phosphorus, and vitamin D nutrient intake pattern; and a high-fat nutrient intake pattern. A significant increase in BC risk was associated with the high vitamin C and β-carotene nutrient pattern (the highest for the fourth quartile; odds ratio [OR], 5.42; 95% confidence interval [CI], 2.11 to 13.91; ptrend=0.001). In the high calcium, phosphorus, and vitamin D nutrient pattern, a significant inverse trend was detected for the risk of BC. The high-fat nutrient pattern showed a significant direct association with BC risk in the third (OR, 3.88; 95% CI, 1.58 to 9.51) and fourth (OR, 3.87; 95% CI, 1.53 to 9.77) quartiles (ptrend=0.001).
CONCLUSIONS
A significant increase in BC risk was detected for the high vitamin C and β-carotene nutrient intake pattern and the high-fat nutrient intake pattern. However, for the high calcium, phosphorus, and vitamin D nutrient intake pattern, a significant inverse trend was observed.
Summary

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    Marnie Newell, Sunita Ghosh, Susan Goruk, Mohammedreza Pakseresht, Jennifer E Vena, Trevor J B Dummer, Catherine J Field
    Current Developments in Nutrition.2021; 5(4): nzab022.     CrossRef
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    Marine Drugs.2021; 19(10): 531.     CrossRef
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    Reema I. Mahmoud, Reema F. Tayyem
    Current Nutrition & Food Science.2020; 16(3): 251.     CrossRef
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    Reema F. Tayyem, Reema I. Mahmoud, Lina Salah Marei
    Current Research in Nutrition and Food Science Journal.2020; 8(1): 12.     CrossRef
  • Association between Grain and Legume Intakes and Breast Cancer Risk among Women
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    Zixian Huang, Yin Zhang, Haigang Li, Yufeng Zhou, Qianyu Zhang, Rui Chen, Tingting Jin, Kaishun Hu, Shihao Li, Yan Wang, Weiliang Chen, Zhiquan Huang
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Dietary patterns, nutrition, and risk of breast cancer: a case-control study in the west of Iran
Behjat Marzbani, Javad Nazari, Farid Najafi, Behnaz Marzbani, Sara Shahabadi, Mahin Amini, Mehdi Moradinazar, Yahya Pasdar, Ebrahim Shakiba, Saeed Amini
Epidemiol Health. 2019;41:e2019003.   Published online January 24, 2019
DOI: https://doi.org/10.4178/epih.e2019003
  • 19,171 View
  • 819 Download
  • 31 Web of Science
  • 31 Crossref
AbstractAbstract PDF
Abstract
OBJECTIVES
Unhealthy dietary patterns are the most important changeable risk factors for breast cancer. The aim of this study was to assess the relationship between dietary patterns and the risk of breast cancer among under-50 year women in the west of Iran.
METHODS
All women under 50 years old with pathologically confirmed breast cancer between 2013 and 2015 who were referred to oncology clinics in the west of Iran, and 408 under-50 women referred to other outpatient clinics who were without breast or other cancers at the time of the study and 2 years later were selected as the control group. The data were collected using the middle-aged periodical care form of the Iranian Ministry of Health and analyzed using univariate and multivariate logistic regression in Stata.
RESULTS
The most powerful risk factor for breast cancer was fried foods; the odds ratio of consuming fried foods more than once a month for breast cancer was 4.5 (95% confidence interval, 2.1 to 9.4). A dose-response model indicated that increasing vegetable and fruit consumption up to 90 servings per month decreased the odds of breast cancer, but consuming more than 90 servings per month increased the risk.
CONCLUSIONS
Inadequate consumption of vegetables and consumption of soft drinks, industrially produced juices, fried foods, and sweets were identified as risk factors for breast cancer. In response to these findings, it is necessary to raise awareness and to provide education about healthy diets and the need to change unhealthy dietary patterns.
Summary

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Associations between dietary risk factors and ischemic stroke: a comparison of regression methods using data from the Multi-Ethnic Study of Atherosclerosis
Seyed Saeed Hashemi Nazari, Yaser Mokhayeri, Mohammad Ali Mansournia, Soheila Khodakarim, Hamid Soori
Epidemiol Health. 2018;40:e2018021.   Published online May 21, 2018
DOI: https://doi.org/10.4178/epih.e2018021
  • 12,831 View
  • 264 Download
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AbstractAbstract PDF
Abstract
OBJECTIVES
We analyzed dietary patterns using reduced rank regression (RRR), and assessed how well the scores extracted by RRR predicted stroke in comparison to the scores produced by partial least squares and principal component regression models.
METHODS
Dietary data at baseline were used to extract dietary patterns using the 3 methods, along with 4 response variables: body mass index, fibrinogen, interleukin-6, and low-density lipoprotein cholesterol. The analyses were based on 5,468 males and females aged 45-84 years who had no clinical cardiovascular disease, using data from the Multi-Ethnic Study of Atherosclerosis.
RESULTS
The primary factor derived by RRR was positively associated with stroke incidence in both models. The first model was adjusted for sex and race and the second model was adjusted for the variables in model 1 as well as smoking, physical activity, family and sibling history of stroke, the use of any lipid-lowering medication, the use of any anti-hypertensive medication, hypertension, and history of myocardial infarction (model 1: hazard ratio [HR], 7.49; 95% confidence interval [CI], 1.66 to 33.69; p for trend=0.01; model 2: HR, 6.83; 95% CI, 1.51 to 30.87 for quintile 5 compared with the reference category; p for trend=0.02).
CONCLUSIONS
Based primarily on RRR, we identified that a dietary pattern high in fats and oils, poultry, non-diet soda, processed meat, tomatoes, legumes, chicken, tuna and egg salad, and fried potatoes and low in dark-yellow and cruciferous vegetables may increase the incidence of ischemic stroke.
Summary

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    Svilena V Lazarova, Mahsa Jessri
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Editorial
Methodological issues in estimating sodium intake in the Korea National Health and Nutrition Examination Survey
Hyun Ja Kim, Kyungwon Oh
Epidemiol Health. 2014;36:e2014033.   Published online November 28, 2014
DOI: https://doi.org/10.4178/epih/e2014033
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
For policy goal setting, efficacy evaluations, and the development of related programs for reducing sodium intake, it is essential to accurately identify the amount of sodium intake in South Korea and constantly monitor its trends. The present study aimed to identify the status of sodium intake in South Korea and to review the methods and their validity for estimating sodium intake in each country; through this, we aim to determine more accurate methods for determining sodium intake and to monitor the trend in sodium intake for Korean citizens in the future. Using 24-hour dietary recall data from the 2012 Korea National Health and Nutrition Examination Survey (KNHANES) to estimate daily sodium intake, the average daily sodium intake among Koreans was 4,546 mg (men, 5,212 mg; women, 3,868 mg). In addition to the nutrition survey that uses the 24-hour dietary recall method, sodium intake can also be calculated from the amount of sodium excreted in 24-hour urine, 8-hour overnight urine, and spot urine samples. Although KNHANES uses the 24-hour dietary recall method to estimate the sodium intake, the 24-hour dietary recall method has the disadvantage of not being able to accurately determine the amount of sodium intake owing to its unique characteristics of the research method and in the processing of data. Although measuring the amount of sodium excreted in 24-hour urine is known to be the most accurate method, because collecting 24-hour urine from the general population is difficult, using spot urine samples to estimate sodium intake has been suggested to be useful for examining the trend of sodium intake in the general population. Therefore, we planned to conduct a study for estimating of 24-hour sodium excretion from spot urine and 8-hour overnight urine samples and testing the validity among subsamples in the KNHANES. Based on this result, we will adopt the most appropriate urine collection method for estimating population sodium intake in South Korea.
Summary
Korean summary
이 연구에서는 나트륨 섭취량 조사방법과 각 조사방법의 타당성을 고찰하여 나트륨 섭취량과 추이를 보다 정확하게 파악할 수 있는 방법을 모색해보고자 하였다. 국민건강영양조사에서는 24시간 회상법을 이용하여 우리나라 국민의 나트륨 섭취량을 산출하고 있으나, 정확성과 추이 비교에 제한점을 가지므로 소변을 이용하여 나트륨 섭취량을 추정하는 방법에 대한 검토가 필요하다. 이에, 국민건강영양조사의 일부 대상자에서 단회뇨, 야간뇨, 24시간 소변을 수집∙이용하여 24시간 소변 나트륨 배설량을 추정하는 식을 개발하고 그 타당도를 검증하는 연구를 수행하여 가장 적절한 소변 수집 방법을 국민건강영양조사에 도입할 계획이다.

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Original Article
Influence of behavioral determinants on deviation of body mass index among 12-15 years old school children of Panchkula
Amandeep Chopra, Nanak Chand Rao, Nidhi Gupta, Shelja Vashisth, Manav Lakhanpal
Epidemiol Health. 2014;36:e2014021.   Published online September 29, 2014
DOI: https://doi.org/10.4178/epih/e2014021
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AbstractAbstract PDF
Abstract
OBJECTIVES
To evaluate the body mass index (BMI) and factors related to BMI in 12-15 years old adolescents attending school in the Panchkula district of Haryana, India.
METHODS
Our multistage sampling method enrolled 810 adolescents. Demographic data and dietary history data over 5 days were recorded. Height and weight were measured to calculate BMI, which was further categorized according to the World Health Organization classification system. Diet was analysed using the Nizel criteria and socioeconomic status (SES) was assessed using Prasad’s socioeconomic classification. The chi-squared test and analysis of variance test were performed, and a multinomial regression analysis was performed to find significant correlates with BMI.
RESULTS
The prevalences of underweight, normal weight, overweight, and obesity were 13.6, 58.4, 22.7, and 5.3%, respectively. The prevalence of both overweight and obesity was higher among males than that among females. The overall food group, nutrient, sweet, and oral health diet scores were higher among overweight and obese adolescents. Adolescents attending public school were 2.62 times more likely than private school adolescents were to be underweight. Private school adolescents were 2.08 times more likely than public school adolescents were to be overweight. Those with a high SES, vegetarians, and those aged 15 years were highly likely to be obese.
CONCLUSIONS
We found 41.6% of these adolescents to have a BMI that deviated from the norm. Important factors related with BMI were age, gender, socioeconomic score, mean daily diet score, and the type of school.
Summary

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    In-Seok Song, Kyungdo Han, Jae-Jun Ryu, Jun-Beom Park
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Epidemiol Health : Epidemiology and Health