• Nutrition Research and Practice
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• 제10권1호
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• pp.89-98
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• 2016

BACKGROUND/OBJECTIVES: Observational studies suggest that an association between vegetable consumption and coronary heart disease (CHD). However, the results are inconsistent. This study aimed to investigate the daily intake of vegetables on a national level and its effect on the risk of CHD risk, as determined by the Framingham Risk Score (FRS). SUBJECTS/METHODS: This study was conducted a cross-sectional design of 2,510 male adults 40-64y of age who participated in the 2007-2009 Korean National Health and Nutrition Examination Survey. Daily intake of vegetable was assessed by 24-h recall, and the consumption frequency of vegetables was determined using a food frequency questionnaire. The odd ratio of CHD risk according to daily intake and frequency of vegetables was analyzed. RESULTS: Total vegetable intake was inversely and significantly associated with the risk of CHD (Model 1: 4th vs. 1st quartile, OR = 0.74, 95% CI = 0.58-0.96, P for trend = 0.0015), and the significant relationship with CHD risk remained even after adjusting for potential confounders (Model 3: 4th vs. 1st quartile, adjusted OR [aOR] = 0.69, 95% CI = 0.49-0.95, P for trend = 0.0492). Subjects in the higher quartiles of non-salted vegetable intake had 31% lower odds of the risk of CHD compared to those in the lowest quartile after adjusting for various potential confounders in model 3 (aOR = 0.69; 95% CI = 0.49-0.97, P for trend = 0.0478). No significant associations between the frequency of vegetable intake (total, green, white and red vegetable) and the risk of CHD were found. CONCLUSIONS: The major results of this study indicate that higher vegetable intake may help prevent CHD in Korean men.

• 농촌지도와개발
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• 제30권4호
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• pp.229-241
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• 2023

This study aims to examine the farm household income and consumption structure change as well as farm income inequality. Data from the Agricultural Household Survey for the years 2016, 2021, and 2022 were hired to analyze farm income inequality by the Gini coefficient decomposition method. Results show that from 2016 to 2021, all income quintiles exhibited an increasing trend, but in 2022, income decreased across all quintiles. As a result of analyzing farm household consumption expenditure, consumption expenditure increased in all income quintiles in 2021 and 2022 compared to 2016, but consumption of optional goods decreased in the fifth quintile. In addition, it was found that farmers in the first quartile had higher consumption expenditures and expenditures on options than those in the second quartile. The analysis of farm income by region show that public subsidies increased significantly for general rural farmers than for farmers in special and metropolitan areas in all income quintiles during the period. In the case of the first quintile, farm household income in rural areas in special and metropolitan cities increased compared to general rural areas. In the fifth quartile, agricultural income and sideline income in general rural areas increased compared to rural areas in special and metropolitan cities, while rural areas in special and metropolitan cities increased non-business income compared to rural areas. Results of farming income inequality by income type show a steady decline in inequality from 2016 to 2022, indicating that the decreasing gini coefficinet of public subsidies is contributing to the decline in farm income inequality. Private subsidies and side income are shown to increase inequality.

• 대한지역사회영양학회지
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• 제29권1호
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• pp.51-64
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• 2024

Objectives: This study examined the association between ultra-processed food (UPF) consumption and chronic diseases in elderly Koreans. Methods: Data from the 2019-2021 Korea National Health and Nutrition Examination Survey were analyzed. Dietary intake and UPF consumption were assessed using the NOVA food classification based on 24-hour recall data from 3,790 participants (aged 65+ years). Participants were divided into 4 groups based on the quartile of energy intake from UPFs. Regions were classified as urban or rural. Multivariable logistic regression was employed to estimate the adjusted odds ratios (AORs) with 95% confidence intervals (CIs) after controlling for potential confounders. Results: Among the participants, 71.3% resided in urban and 28.7% in rural areas. Compared to the urban elderly, rural participants tended to be older, have lower education and income levels, be more likely to live in single-person households, and have a higher smoking rate (P < 0.05). Urban elderly consumed more UPFs daily (146.1 g) compared to rural residents (126.6 g; P < 0.05). "Sugar-sweetened beverages" were the most consumed category in both regions. "Sweetened milk and its products" and "traditional sauces" were prominent in urban areas, while rural elderly consumed more "traditional sauces" and "distilled alcoholic beverages." Rural areas also had a higher carbohydrate-to-calorie ratio than urban areas. Compared to the lowest quartile of UPF intake, the highest quartile was significantly associated with impaired fasting glucose only in rural areas (AOR, 1.48; 95% CI, 1.00-2.19; P for trend = 0.0014). No significant associations were observed for diabetes in either urban or rural areas. Conclusions: This study suggests that high intake of UPFs is associated with increased odds of impaired fasting glucose in rural elderly. Further research is needed to elucidate the specific negative health effects of UPFs in different populations, and targeted efforts should promote healthy diets in both urban and rural areas.

• Journal of Nutrition and Health
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• 제51권6호
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• pp.556-566
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• 2018

본 연구는 국민건강영양조사 제6기 (2013 ~ 2015) 원시자료를 이용하여 심혈관계 위험인자를 적용한 고LDL-콜레스테롤혈증과 건강행태의 관련성을 조사하기 위해 수행되었으며, 19세 이상 남자 5,939명, 여자 7,902명의 총 13,841명을 대상으로 하였다. 심혈관계 위험인자는 뇌졸중, 심근경색증 또는 협심증, 당뇨병, 고혈압, 흡연, 저HDL-콜레스테롤 (40 mg/dL 미만), 연령 (남자 45세 이상, 여자 55세 이상), 고HDL-콜레스테롤 (60 mg/dL 이상)을 포함하였다. 뇌졸중이나 심근경색증 또는 협심증은 초고위험군, 당뇨병은 고위험군, 이외 위험인자가 2개 이상은 중등도위험군, 1개 이하는 저위험군으로 구분하였다. 각 위험군 별 목표 수치를 기준으로 한 고LDL-콜레스테롤혈증 유병자는 남자 25.5%, 여자 21.7%이었다. 건강행태와 고LDL-콜레스테롤혈증 유무의 연관성을 복합표본 교차분석으로 분석한 결과, 남녀 모두 연령, 교육수준, 결혼상태, 체질량지수, 탄수화물 에너지 섭취 비율, 지방의 에너지 섭취비율, 포화지방 에너지 섭취비율, n-6 지방산의 에너지 섭취 비율에 따라 고LDL-콜레스테롤혈증 유무는 유의한 연관성이 있었다. 그리고 흡연은 남자에서, n-3계 지방산의 에너지 섭취 비율은 여자에서 고LDL-콜레스테롤혈증 유무와 각각 유의한 연관성이 있었다. 건강행태와 고LDL-콜레스테롤혈증 발생 위험과의 관련성을 확인하기 위해 복합표본 다중 로지스틱 회귀분석을 실시한 결과, 교란인자 보정 후 남자에서는 현재 흡연 (OR: 1.66, 95% CI: 1.40-1.99), 비만 (OR: 1.95, 95% CI: 1.64-2.31) 에서 고LDL-콜레스테롤혈증 유병 오즈비가 유의하게 높았다. 여자의 경우 현재 흡연 (OR: 1.73, 95% CI: 1.19-2.52), 비만 (OR: 1.63, 95% CI: 1.39-1.90)에서 고LDL-콜레스테롤혈증 유병 오즈비가 유의하게 높았고, n-3 지방산 에너지 섭취 비율이 '하'(Q1)에 비해 '중 하' (Q2) (OR: 0.77, 95% CI: 0.62-0.96), '중 상' (Q3) (OR: 0.73, 95% CI: 0.56-0.94), '상' (Q4) (OR: 0.67, 95% CI: 0.51-0.87) 에서 고LDL-콜레스테롤혈증 유병 오즈비가 유의하게 낮았다. 따라서 고LDL-콜레스테롤혈증 개선을 위한 전략 수립에 금연, 정상 체중 유지가 필요하며, 영양소별 적정한 에너지 섭취 비율 유지를 고려해야 한다.

• 한국ITS학회 논문지
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• 제7권6호
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• pp.21-30
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• 2008

GPS를 탑재한 프로브차량에 의해 수집되는 교통정보(구간통행속도)는 차량검지기와 같이 특정링크에 대하여 연속적으로 교통정보를 수집하는 방식이 아니다. 따라서 단속교통류 구간에서 신호시간 등의 영향으로 수집되는 정보의 안정성과 대표값 등에 문제점이 있다. 본 연구는 GPS를 장착한 프로브차량에 의해 수집된 구간통행속도 데이터를 필터링하는 방법을 개발하는데 목적이 있다. 시간간격별로 수집되는 데이터에 대하여 사분위편차와 관리도에 의해 이상치를 제거하였다. 사분위편차를 적용한 결과는 제거율이 $0{\sim}3.7%$ 이고, 개별 관리도에 의한 결과는 제거율이 $0.3{\sim}7.2%$ 이었다. 두 방법 모두 교통소통이 원활한 새벽시간 대에 이상치 제거율이 낮고, 낮 시간대에 이상치 제거율이 높은 것으로 나타났다. 문제점으로 지적되는 것은 모형에 충실할 경우 Low Bound에서 이상치의 제거기준이 낮게 설정되는 것이다. 따라서 시스템 운영과정에서 경험적인 사항이 반영되어져야 할 것으로 검토된다.

• 대한임상검사과학회지
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• 제47권4호
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• pp.324-331
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• 2015

갑상샘 호르몬은 교감신경계와의 상호작용으로 세포의 에너지 대사조절 및 항상성 유지에 중요한 역할을 한다. 본 연구는 건강검진을 실시한 성인 남성을 대상으로 갑상샘 호르몬과 대사증후군 위험요인간의 연관성을 밝히고자 하였다. 경기지역 일개 종합병원에서 2011년 1월부터 2013년 12월까지 건강검진센터에서 종합건강검진을 실시한 20세 이상 80세 이하의 남성 12,250명을 대상으로 하였다. 대사증후군은 American Heart Association/National Heart, Lung, and Blood Institute (AHA/NHLBI, 2005)에서 제시한 진단 기준에 따랐으며, 3개 이상의 위험요인을 가진 경우 대사증후군으로 진단하였다. 정상군보다 대사증후군 진단군에서 FT4가 낮았으며(p<0.001), TSH는 대사증후군 유무에 따른 차이는 없었다. 또한 FT4는 대사증후군 위험요인 중 허리둘레, 중성지방에 영향을 미치는 것으로 나타났으며(각각 p<0.001), FT4의 가장 낮은 사분위수가 가장 높은 사분위수보다 HbA1c, 인슐린, HOMA-IR, hs-CRP 농도가 높았다(각각 p<0.001). FT4는 허리둘레, 중성지방에 영향을 미치는 것으로 나타났으나, TSH는 대사증후군 위험요인에 영향을 미치지 않는 것으로 나타났다. 또한 FT4의 가장 높은 분위수의 대사증후군 발생위험이 가장 낮은 분위수보다 낮게 나타났다.

• Nutrition Research and Practice
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• 제7권3호
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• pp.224-232
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• 2013

The objective of this study is to identify the dietary patterns associated with the risk of hypertensions among Korean adults using data from the Korean National Health and Nutrition Examination Survey (KNHANES, 2008-2010). This study analyzes data from 11,883 subjects who participated in the health and nutrition survey, aging from 20 to 64 years. We performed factor analysis based on the weekly mean intake frequencies of 36 food groups to identify major dietary patterns. We identified three major dietary patterns in both sexes, namely "traditional", "western" and "dairy and carbohydrate" patterns. Participants in the highest quartile of western pattern scores had significantly higher blood pressure, serum total cholesterol, and triglyceride levels than those in the lowest quartile. Although not statistically significant, a trend (P for trend = 0.0732) toward a positive association between the western dietary pattern and hypertension risk was observed after adjustments for age, sex, education, income, body mass index (BMI), smoking, physical activity, and energy intake. The dairy and carbohydrate pattern was inversely related with BMI and blood pressures and positively associated with serum high-density lipoprotein (HDL)-cholesterol. After adjusting the age, sex, education, income, BMI, smoking, physical activity and energy intake, the dairy and carbohydrate pattern showed inverse associations with hypertension prevalence (OR = 0.64, 95% CI = 0.55-0.75; P for trend < 0.0001). Intakes of fiber, sodium, and antioxidant vitamins were significantly higher in the top quartile for the traditional pattern than in the lowest quartile for the traditional pattern (P for trend < 0.0001). Intakes of fiber (P for trend < 0.0001), calcium (P for trend < 0.0001), retinol (P for trend = 0.0164), vitamin $B_1$ (P for trend = 0.001), vitamin $B_2$ (P for trend < 0.0001), niacin (P for trend = 0.0025), and vitamin C (P for trend < 0.0001) were significantly increased across quartiles for the dairy and carbohydrate pattern whereas sodium (P for trend < 0.0001) intake was decreased for this pattern. In conclusion, the dairy and carbohydrate pattern may be associated with a reduced risk of hypertension whereas the western pattern may be associated with an increased risk of hypertension among Korean adults.

• Asian Pacific Journal of Cancer Prevention
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• 제16권1호
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• pp.109-117
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• 2015

Background: Follow-up clinical consultations could improve overall health status as well provide knowledge and education for cancer prevention. Materials and Methods: This is the cross-sectional study using the Korean Community Health Survey (KCHS) 6th edition for 2012, with 115,083 respondents who underwent cancer checkups selected as subjects. Associations between the presence of consultation and the socioeconomic status were determined using statistical methods with the SAS 9.3 statistical package (Cary, NC, USA). Findings: Among the recipients, 32,179 (28.0%) received clinical consultations after cancer screenings. Those in rural areas (odds ratio, OR=0.71, 95% confidence interval (CI), 0.69-0.73) visited follow-up clinics less frequently than did those in urban areas. Starting at the elementary school level, as the education level increased to middle school (OR=1.26, 95% CI: 1.19-1.34), high school (OR=1.29, 95% CI: 1.23-1.36) or college (OR=1.76, 95% CI: 1.65-1.89), the participation rates also increased. When compared with the lowest quartile group, the quartile income level showed a statistical trend and difference as follows: second lowest quartile (OR=1.11, 95% CI: 1.07-1.16), third lowest (OR=1.12, 95% CI: 1.07-1.17) and highest quartile income (OR=1.29, 95% CI: 1.23-1.35). In addition, the people with economic activities (OR=0.87, 95% CI: 0.84-0.90) visited follow-up clinics less frequently than did the others. Current smokers (OR=0.93, 95% CI: 0.89-0.98) and inveterate drinkers (OR=0.88, 95% CI: 0.85-0.94) had a tendency to visit less often than did non-smokers and other drinkers with all cancers combined. Interpretation: We suggest primary prevention through lifestyle modifications including smoking and drinking, and environmental interventions may offer the most cost-effective approach to reduce the cancer burden.

• 대한지역사회영양학회지
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• 제1권3호
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• pp.376-394
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• 1996

This study evaluated the reproducibility and validity of the self-administered semiquantitative food frequency questionnaire used in a large prospective cohort study(Korean Cancer Research Survey) in middle-aged men. The questionnaire was administered twice at an interval of approximately two years(December, 1992-January, 1995), and four or five 24-hour recalls for each subject were collected at intervals of approximately three months. The results were as follows; 1) Although the distributions of the data estimated by the questionnaire were somewhat wider, the mean nutrient intakes of group estimated by our questionnaires and the multiple 24-hour recalls were roughly comparable. 2) The reproducibility determined by correlation of absolute(unadjusted nutrient intake) and calorie adjusted nutrient intakes from two semiquantitative food frequency questionnaires were more than 0.5, and the weighted kappa values were more than 0.4. 3) The Pearson correlation coefficients between unadjusted nutrient intakes values were average 0.40 on the average(Ca, 0.13-Carbohydrate, 0.58) at the first questionnaire vs. 24-hour recalls, and 0.28 at the second questionnaire vs. 24-hour recalls. The spearman rank order correlation coefficients were similar. When energy intake was adjusted, there was a slight reduction : 0.28 at the second questionnaire, 0.25 average on the second. In order to correct the measurement error of 24-hour recall data, the deattenuated correlation coefficient was calculated. It averaged 0.53 on the first questionnaire, 0.37 on the second questionnaire for unadjusted nutrient intake. for calorie-adjusted nutrient intake, it averaged 0.44 on the first questionnaire, 0.37 on the second questionnarie. 4) There was lower agreement(k<0.4) between the questionnaries and the 24-hour recalls. And the subjects classified in the same quartile by 24-hour recalls and first questionnaire were average 37$\%$(energy-adjusted values) and 40$\%$(unadjusted values) on the average. More than k10$\%$(average) of subjects were in the extreme quartile of the questionnarie and 24-hour recall method. But 8.2$\%$(average) of subjects classified in the lowest quartile of unadjusted nutrient intake level by the 24-hour recalls were in the highest quartile by the first questionnaire. These data indicate that our self-administered semiquantitative food frequency questionnarie is reproducible. Correlation coefficients comparing nutrient intakes measured by two different dietary assessment methods were less than 0.5. The validity of our questionnarie is not high enough.

• 대한지역사회영양학회지
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• 제13권1호
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• pp.111-124
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• 2008

This study was conducted to develop a computerized food frequency questionnaire (FFQ) for assessing nutritional status of women of child-bearing age. Computerized food frequency questionnaire (FFQ) that reflect intakes of energy, carbohydrate, fat and protein was developed for women of child-bearing age. This FFQ is composed of 61 foods or food groups containing 192 dish items. To estimate of energy intake easily, we have developed a computer program that can be viewed on a computer screen in an actual size of dish items. Nutrient intakes of the last three months by the FFQ was validated with comparing the result of a 3-day diet record through 92 college students aged from 20 to 30. The level of energy, carbohydrate and sodium of estimating by the FFQ method was significantly higher than the level of a 3-day diet records method (p < 0.01). Pearson's correlation coefficients between the two methods were 0.50 for carbohydrate (p < 0.01), 0.55 for energy (p < 0.01) and 0.56 for protein (p < 0.01). Spearman's correlation coefficients were 0.53 for carbohydrate (p < 0.01), 0.55 for energy (p < 0.01) and 0.52 for protein (p < 0.01). The percent of subject in the lowest quartile in a 3-day diet record belonged to the first and second lowest quartile in food frequency questionnaire is 78.2% in energy, 91.3% in carbohydrate, 78.2% in protein, 69.5% in fat. Also, the percent of subject in the highest quartile in a 3-day diet record belong to the first and second highest quartile in food frequency questionnaire is 78.3% in energy, 73.9% in carbohydrate, 82.6% in protein, and 73.9% in fat. On the whole, the result of this study seemed to be in good agreement with other studies. Therefore, the FFQ developed by this study is considered to be a reliable tool to assess nutrients and food intakes for women of child-bearing age.