• Journal of Nutrition and Health
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• v.33 no.3
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• pp.314-324
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• 2000

Evaluation of nutritional status of the elderly imposes different problem from the other age groups. It is essential to use right instrument to assess food consumption. In Korea, the food frequency questionnaire has not been applied widely to elderly people. The purpose of this study is to assess the possibility of employing a semi-quantitative food frequency questionnaire(FFQ) for the Korean elderly to estimate nutrient and/or food intakes. In this study the FFQ for the elderly was developed and validated. The subjects were 144 free-living old women aged from 65 to 90. The FFQ was designed with 4 items for cereals and 86 items for other foods and with frequency of 12 intervals. Three portion sizes were given to select : 1/2 of standard amount, standard amount, and 11/2 of standard amount. ach subject was interviewed with newly developed FFQ form and same subjects were also involved to complete 3-day diet record. Nutrient intake was calculated using software program developed by our group. The nutrient intakes by the FFQ was validated by comparing the results with 3-day diet record. The FFQ estimated significantly higher mean intakes of energy, carbohydrate, protein, fats and vitamin C than did the diet reconrds(p<0.05). Pearson's correlation coefficients between two methods ranged from 0.21 for vitamin Q to 0.69 for alcohol(mean r=0.53). From 32% to 42% of the subjects were classified in the same quintile of nutrient intake by two methods, and 63% to 84% were classified in the same or adjacent quintile. On average, only 4% of the subjects were misclassified into extreme quitiles. The results indicate that the FFQ developed for the elderly in this study is useful for classifying individuals by rank and identifying groups at extremes of nutrient intakes.

• Journal of the East Asian Society of Dietary Life
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• v.25 no.1
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• pp.1-11
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• 2015

This research was designed to examine the dietary habits and unbalanced diet of middle school students by gender and region. The survey was conducted using questionnaires on dietary habits and unbalanced diet administered to 726 students (urban: 367, rural: 359). The obesity index using BMI showed that the largest proportion of girls was 'underweight' in both regions, which showed a significant difference by region (p<0.001). Male students in urban areas prefer salty taste more than rural students (p<0.05). In urban areas, problems relating to dietary habits were 'unbalanced diet' and 'overeating' in male students and 'frequent snacks' and 'irregular mealtime' for female students (p<0.01). The frequencies of skipping breakfast (p<0.01), snack intake (p<0.001), eating out (p<0.001) and fast food consumption (p<0.001) were significantly higher in urban students than in rural students, and the reason for eating snacks was 'hungry' in urban students and 'habitually' and 'delicious' in rural students (p<0.01). Unbalanced diet was significantly higher in rural students compared with urban students (p<0.001) and male students compared with female students in urban (p<0.05), and the factors affecting dietary habits were mostly related to family. Male students in urban areas showed a significantly lower intake frequency of 'fish, tofu and beans' (p<0.05) and 'milk and yogurt' (p<0.05), but higher intake frequency of 'vegetables' (p<0.001) compared with female students. Male students in rural areas showed a significantly lower intake frequency of 'meat' (p<0.05) but higher intake frequency of 'milk and yogurt' (p<0.05) compared with female students. Urban students showed a significantly higher intake frequency of food groups compared with rural students. To conclude, desirable nutrition education on meal regularity, snack choice, and problems relating to unbalanced diet should be conducted in schools.

• Korean Journal of Human Ecology
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• v.20 no.2
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• pp.449-465
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• 2011

This study was performed to investigate the effects of food habits and life style on the skin health of young Korean females in their late teens and twenties. The study focused on facial skin and used a self-administered questionnaire survey, an examination of skin type, and pH tests. More than half of the females had combination skin type or pH level higher than 5.8 which is regarded as normal. The variables that turned out to significantly (p<0.05) effect their facial skin types were body mass index (BMI), the type of residence, the amount of water intake, whether or not they intake drinks, the frequency and amount of alcohol drinking, favorite foods as side dishes at meals, intake frequency of fruit, the dairy, seaweed, and fast food, the frequency of washing their faces per day, the method of how they used water during face washing, whether or not they had professional skin care, and whether or not they wore color make up. The variables of the females' age, BMI, the amount of alcohol drinking, the frequency and duration of exercise, the controlling methods of stress, their favorite foods as side dishes at meals, and the intake frequency of soy products or animal foods significantly affected their facial pH levels (p<0.05). The results of this study indicate that some food habits and life styles are significantly related with facial skin health. More importantly BMI and favorite foods as side dishes during daily food intake could have remarkable effects on facial skin health.

• Korean Journal of Community Nutrition
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• v.3 no.5
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• pp.685-694
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• 1998

This cross-sectional study was conducted to describe the changes of plasma cardiovascular disease(CVD) risk factors in Korea. Overnight fasting plasma levels of total cholesterol, high density lipoprotein(HDL)-cholesterol, triacylglycerol and glucose were analyzed. Blood pressure and anthropometric data were also measured. Health practice factors such as smoking status, alcohol consumption and frequency fo exercise were evaluated by a self-administered questionnaire. Questions regarding dietary habits and food preferences were also asked. Seventy eight percent of the subjects had more than one CVD risk factor. Plasma total cholesterol, triacylglycerol, and fasting blood glucose were significantly increased according to the subjects body mass index$(kg/m^2$, BMI), whereas HDL-cholesterol, low density lipoprotein(LDL)-cholesterol and blood pressure showed no significant differences with BMI. Current smokers had significantly high plasma total cholesterol, LDL-cholesterol and triacylglycerol levels. Alcohol consumption significantly increased plasma total cholesterol and fasting blood sugar, but regular exercise had no effects on the plasma CVD risk factors. Overeating and frequency of fast food consumption were positively correlated with the CVD risk score, whereas intake of grains, meats and vegetables were negatively correlated with that score. A stepwise multiple regression analysis was performed to examine the effects of specific dietary factors on plasma lipid levels. For plasma total cholesterol level, the frequency of fast food intake explained 8% of the variance, followed by habitual overeating, frequency of grain intake and high cholesterol food intake(Model $R^2$=22.4%). For plasma triacylglycerol level, preference of oily foods accounted for 7.5% of the variance, followed by eating breakfast, preference of fruit and frequency of grain intake(Model $R^2$=22.0%). The findings suggest that intervention programs to reduce the risk of CVD should focus on health practice through reducing BMI, smoking cessation and moderate or no alcohol drinking. Moreover, desirable dietary habits such as eating breakfast, not overeating and reduced intake of fast food may improve CVD risk.

• Nutritional Sciences
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• v.4 no.2
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• pp.98-103
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• 2001

The aim of this study was to determine the association between, smoking, exercise, sex, and dietary carotenoids ($\alpha$-carotene, $\beta$-carotene, $\beta$-cryptoxanthin, lutein + zeaxanthin, lycopne) intake in Korean middle-aged adults. Food-frequency questionnaire were analyzed from 304 healthy adults (115 men, 189 women) aged 20 - 59. The self-administered questionnaire contained subject s habitual diet and alcohol intake were the previous 3 months. Data on frequency of 102 foods, including vegetables, fruits, beverages and legumes were analyzed. Total dietary carotenoids intake were 27.13 $\pm$ 3.09 mg/d for men and 26.71$\pm$ 2.82 mg/d for women. It was found that smoking had no significant contribution to the dietary intake of carotenoids. Among other lifestyle factors that had significant correlation was the amount of exercise time. The increases in exercise time was associated with increase in carotenoids intake (r= 0.121, p : 0.04). The major contributors of $\alpha$-carotene and $\beta$-carotene were carrots consumed as single-food item or carrot juice. Lutein and Zeaxanthin intake mainly came from spinach and most lycopene intake was derived from tomato products not fresh tomatoes. Persimmon was the major contributor of $\beta$-cryptoxanthin. These findings provide valuable information on understanding the unique pattern of dietary intake of Korean, which might help identify the risks for developing various diseases.

• Korean Journal of Human Ecology
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• v.5 no.2
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• pp.9-21
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• 2002

This study was investigated traditional food utilization actual conditions of Gwangju and Chollanamdo. Frequency of main meal ice plain white rice, boiled rice and cereals, bean-mixed rice, gruel Dakjuk, winter squash porridge, sesame porridge, noodles by noodles cut out with a kitchen knife, noodles with assorted mixtures, soup with dough flakes order frequency much have. Soup ate much beanpaste soup, soup cooked with dried radish leaves, seaweed soup, broth by power-pot soup, hot shredded beef soup, loach soup order. Pot stew soybean paste stew and kimchi stew, beef casserole bean curd beef casserole and small octopus beef casserole often eat. Kimchi ate much cabbage kimchi, radish kimchi, radish cube kimchi, dish of dried slices of radish by sesame leaf dish of dried slices of radish, pickled garlics, Maneuljjong dish of dried slices of radish order. Salted sea foods that eat often were salted anchovies, tiny salted shrimps, Gejang order, and soy sauce were toenjang, korean hot pepper paste, bean-paste soup prepared with around fermented soy beans order, and laver fried kelp, tangle fried kelp, green perilla leaf fried kelp order to fried kelp, and it was bean sprouts, bracken herbs, fragrant edible wild aster herbs order to herbs. It is Ssukgatmuchim, squid debt saliva, Jabanmuchim's order that season, hard-boiled food is beef boiled in soy sauce, mackerel radish hard-boiled food, order of bean curd hard-boiled food, panbroiling ate often by order of Kimchi panbroiling, red pepper anchovy panbroiling, pork panbroiling. Steamed dish is egg steamed dish, fish steamed dish, steamed short-ribs order, fried fish egg speech, by Gimchijeon, Pajeon order, meat roasted with seasoning ate often by laver meat roasted with seasoning, hair-tail meat roasted with seasoning, mackerel meat roasted with seasoning order. Minced raw meat are small octopus raw that live, beef dish of minced raw beef, Hongeohoe order, rice cake is cake made from g1u1ions rice, Seolgitteok, songpyon order, dessert ate often by fermented rice Punch, cinnamon flavored persimmon punch, Kangjung order.

• The Korean Journal of Food And Nutrition
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• v.33 no.6
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• pp.721-731
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• 2020

This study used a food-frequency questionnaire to estimate fruit consumption by sex, age, and type of fruit to analyze the association between fruit type and metabolic factors. Using food-frequency-questionnaire data from 3,091 adults aged 19~64 years (1,184 men and 1,907 women) in the 2016 Korea National Health and Nutrition Examination Survey, this study analyzed weekly fruit consumption and the consumption frequency of strawberry, oriental melon, watermelon, peach, grape, apple, pear, persimmon/dried persimmon, tangerine, banana, orange, and kiwi by sex and age groups. Apple was the most-consumed fruit (459.45 g/wk), followed by pear (165.80 g/wk), watermelon (124.80 g/wk), and banana (115.32 g/wk). After adjustment for confounding factors, ED: Please give examples. in the women who ate more than the median consumption of apple, the prevalence of hyperglycemia was 27.4% (OR: 0.726, 95% CI: 0.539~0.979) (p=0.0362), and of high triglycerides, 25.7% (OR: 0.743, 95% CI: 0.564~0.978) (p=0.0340). These rates were lower than those of women who ate less than the median consumption of apple. The results of this study suggest that apple consumption helps improve metabolic indicators in Korean adults.

• Korean Journal of Community Nutrition
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• v.25 no.4
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• pp.291-302
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• 2020

Objectives: This study investigated the current use of university foodservice among Chinese international students in Korea, focusing on the relationship between the frequency of university foodservice use and their dietary life. Methods: An online survey was conducted on 452 Chinese international students from February 6 to 12, 2020. The respondents were classified into "the Low-frequency group" (< one time/week; n=144), "the Mid-frequency group" (one-two times/week; n=133), and "the High-frequency group" (≥ three times/week; n=175) according to their frequency of using university foodservice. The dietary life was compared among the three groups. Binominal logistic regression models were constructed to determine the associations between the frequency of university foodservice use and the changes in dietary life. Results: More than 2/3 (68.1%) of the respondents used the university foodservice at least once per week. Chinese international students who were males and Han Chinese people, lived on campus, had stayed longer in Korea, and had no cooking facilities tended to use the university foodservice more often. The level of satisfaction with the university foodservice was not high (3.52 out of 5-points). Only 20% ate meals three times per day, and only 22% ate breakfast almost every day. The frequencies of overeating and skipping meals increased after studying in Korea. The frequency of university foodservice use, along with the length of residence in Korea, was associated with these negative changes in dietary life. Overeating (OR=2.11) and skipping meals (OR=1.79) were more likely to increase after studying in Korea in the Mid-frequency group than in the High-frequency group. Conclusions: The frequency of university foodservice use was associated with the dietary life of Chinese international students in Korea. A high frequency (i.e. ≥ three times/week) of using university foodservice may positively affect the dietary life of Chinese international students in Korea.

• Korean Journal of Agricultural Science
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• v.46 no.3
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• pp.601-611
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• 2019

As the economy of Korea has developed, dietary patterns have also changed in many ways. Rural areas, in particular, demonstrate relatively lower food accessibility than in urban areas. The aim of this study was to examine whether or not there were differences in food accessibility between urban and rural areas using data of the Census on Basic Characteristics of Establishments, Consumer Behavior Survey for Food, of the Korean National Health and Nutrition Examination Survey. Also investigated was how such differences would affect the frequency of food purchase, dietary intake, and nutrition intake by district. The results showed that districts with the lowest 10% in food accessibility had lower frequency of food purchase than did the highest 10% districts. In terms of nutrition intake, the daily average nutrition intake was not significantly different among districts. Yet, analysis of the amount of weekly dietary intake indicated that food oasis districts had from 1.3 to 3 times greater dietary intake than did food desert districts. These findings mean that the difference in food accessibility causes unbalanced food intake. Thus, the government must take a comprehensive approach to ensure that rural residents get greater food accessibility.

• Journal of dental hygiene science
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• v.12 no.2
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• pp.79-84
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• 2012

The purpose of this study was to utilize it as useful basic data for improving oral health and for developing educational guidelines, by surveying the intake frequency in cariogenic food and the dietary intake status in detergent food through dietary life diary of some female undergraduates, and by researching into relationship between dietary intake factor and dental caries. It allowed dietary life diary for 5 days to be recorded targeting female undergraduates for the Dept. of Dental Hygiene, selected dietary life diary of 66 people without omission of record, and used it in this study. The following conclusions were obtained. 1. As a result of surveying the food intake status, it was indicated to be 12.82 for cariogenic food intake frequency, 256.36 for caries incidence available time and 8.32 for detergent food intake frequency. 2. As a result of surveying in order to examine relationship between cariogenic food intake frequency, detergent food intake frequency & cariogenic light-meal intake frequency and dental caries by dividing group with caries and group with non-caries, the group with caries was indicated to be a little higher than the group with non-caries. However, statistically significant difference wasn't indicated. 3. In the correlation between dietary intake status and dental caries, it was indicated that the more rise in cariogenic food intake frequency leads to the more rise in detergent food intake frequency and even in total light-meal intake frequency, but wasn't shown correlation with dental caries. In light of the above results, many limitations were indicated in finding and analyzing the dental caries incidence level and cause just with a method through surveying dietary intake. However, given the more in cariogenic food intake frequency and detergent food intake frequency, the possibility of dental caries incidence could be predicted.