• Korean Journal of Community Nutrition
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• v.7 no.2
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• pp.277-285
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• 2002

The purpose of this study was to develop a semi-quantitative food frequency questionnaire (SQ-FFQ) for subjects aged 50yr and over and to evaluate the validity of this SQ-FFQ. Dietary intake was assessed using SQ-FFQ that included 98 commonly consumed flood items selected from the results of the Korean Health and Nutritional Survey, 1998. Subjects (n = 2,660) aged 50yr and over were recruited from 7 metropolitan cities and 8 small cities. Each subject was interviewed using this SQ-FFQ developed in our laboratory and 24hr-recall method. Excluding incomplete data, Data from 1,149 subjects were used in this validity study. The nutrient intakes assessed by this SQ-FFQ were validated by comparing with the results from 1 day 24-hour recalls. Pearson's correlation coefficients between two methods were 0.71, 0.64, 0.53, and 0.43 for energy, carbohydrate, protein, and fat, respectively for all subjects. Spearman's correlation coefficients were higher than those of Pearson's correlation coefficients. Kappa values for energy, carbohydrate, protein, and fat were 0.79, 0.72, 0.70, and 0.64, respectively. The percentage for misclassification of the lowest quartile into the highest quartile or vice versa was 1.25-1.39% for all nutrients. Therefore, this SQ-FFQ seems to be useful in assessing the nutritional status of the middle-aged and elderly subjects in Korea.

• Journal of Nutrition and Health
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• v.27 no.8
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• pp.794-804
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• 1994

This study was conducted to investigate the relationship between lactational capacity and intakes of energy and energy-yielding nutrients. Food consumption, intakes of carbohydrate, protein, fat and energy and quantity and proximate composition of milk of 11 lactating Korean mothers were determined at 1, 2 and 3 months postpartum longitudinally. Food consumption was estimated using a 24-hour recall method ; intakes of energy and energy-yielding nutrients were calculated according to the Food Composition Table. Daily milk production was estimated using a 72-hour test-weighing method ; protein, fat, lactose and energy concentrations were analyzed. Average intakes of energy and protein were 1974$\pm$386㎉/day and 67.0$\pm$12.3㎉/day, these were 73% and 74% of the Korean Recommended Allowances, respectively. Average milk yield was 720.1$\pm$123.3ml/day containing energy 59.6$\pm$9.5㎉/dl, protein 1.1$\pm$0.1g/dl, fat 2.7$\pm$0.8g/dl, and lactose 6.3$\pm$0.3g/dl. No relationship existed between the intakes of carbohydrate, protein, fat and energy and the quantity and proximate composition of the milk. However, the intakes of energy, carbohydrate and vegetable protein were inversely related to the concentrations of energy and lactose in the milk. This result indicates that lactational capacity may be affected by the other factors excluding intakes of energy and energy-yielding nutrients and a high intake of energy may not guarantee optimal lactational capacity.

• Korean Journal of Community Nutrition
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• v.16 no.5
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• pp.569-579
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• 2011

The purpose of this study was to determine the urinary Ca, P, Mg, Zn, Cu, and Mn levels and bone mineral density (BMD) in sixty-two postmenopausal women. The study was conducted through anthropometric checkup, 24-hour recall, 24-hour urine and bone mineral density using DEXA. Average age, height, weight and body fat of the subjects were respectively 65.39 years, 150.19 cm, 58.03 kg and 37.22%. The average spine and femoral neck BMD of subjects were -2.19, -3.13. The mean intakes of Ca, P and Mg were 524.7 mg, 993.10 mg, and 254.6 mg and those of Zn, Cu and Mn were 8.6 mg, 1.5 mg, and 3.5 mg. The average 24-hour urinary excretion of Ca (UCa), P (UP) and Mg (UMg) were 161.07 mg, 673.68 mg, and 99.87 mg. The average 24-hour urinary excretion of Zn (UZn), Cu (UCu) and Mn (UMn) were 366.50 ${\mu}g$, 22.57 ${\mu}g$, and 1.55 ${\mu}g$. Ca intake showed significantly positive correlations with urinary UCa (p < 0.05), UMg (p < 0.01) and spine BMD (p < 0.05). P intake showed significantly positive correlations with UCa (p < 0.05), UMg (p < 0.05) and UZn (p < 0.05). Mg intake showed significantly positive correlations with UZn (p < 0.05) and Mn intake showed significantly positive correlations with UCa (p < 0.05). Multiple regression analysis indicates that Ca intake and UMg is the most important factor to increase spine BMD. On the other hand, UCa is the most important factor to decrease spine BMD. Higher femoral neck BMD was related to UP, while lower femoral neck BMD was related to UCa. In conclusion, Dietary intake of Ca showed positive effect of spine BMD, while excessive P intake showed negative effect on BMD due to increases in UCa, UMg and UZn. Further studies are required to investigate the relationship between bone metabolism and mineral excretion.

• Korean Journal of Community Nutrition
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• v.26 no.4
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• pp.296-306
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• 2021

Objectives: The objective of this study was to estimate the distribution of the usual dietary intake of foods with respect to the probability of consumption derived from the Food Frequency Questionnaire (FFQ) of the 2009 Korea National Health and Nutrition Examination Survey (KNHANES). Methods: The intake quantity and frequency of 63 food items were assessed from the 2009 KNHANES which was completed by 7,708 participants. The participants completed one or two 24-h dietary recalls and one FFQ. The usual intake distribution was estimated using the multiple source method (MSM), and the proportion of non-consumers was calculated through the usual intake distribution. This was then compared with the proportion of non-consumers from the 24-hour recall method. Results: The difference in the proportion of non-consumers ranged from 2% to 82.9%, indicating that there is a very large difference based on food groups. The food groups in which the proportion of non-consumers did not differ was composed of foods consumed daily, such as 'rice', 'cereal and barley', and 'Chinese cabbage and kimchi', or foods with distinct palatability such as 'coffee' and 'alcohol'. On the other hand, in the case of the food groups with a high difference in the proportion of non-consumers, most comprised fruits that emphasized seasonality. Conclusions: In the case of foods or food groups that are occasionally consumed, it is desirable to use 2 recalls with additional FFQ data by combining the consumption frequency and the quantity consumed.

• The Korean Journal of Food And Nutrition
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• v.13 no.5
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• pp.425-433
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• 2000

This study was conducted to estimate the prevalence of ametropias such as myopia and hyperopia from the community based population study. Another purpose of this study was to determine the association between ametropia and nutrient intake. The study subjects was 492 residents over 20 years of age residing in Kuri City. Ametropia was tested based on re(rector error using auto referactor. Nutrient intake was estimated from the dietary survey using 24 hour recall method. As a result of data analysis, the prevalence of myopia was 57% and that of hyperopia was 11%. Such a high rate of ametropia prevalence may suggest the increasing risk of eye health in a Korean society. Nutrient intake of myopia group was 5∼15% higher than that of normal group in most of the nutrients. Whereas intake of most nutrient except calcium, retinal, fiber for the hyperopia group was lower than that of normal group. The result may suggest that inbalance of nutrient intake has been related with ametropia.

• Journal of Nutrition and Health
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• v.27 no.10
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• pp.1037-1047
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• 1994

Dietary iodine intake and urinary iodide excretion were meassured from 110 patients with various thyroid hormone diseses(hypothyroidism, hyperthyroidism, simple goiter and thyroid adenoma) and 67 normal control subjects. Iodine intake was assessed on the 24-hour recall dietary data using the compiled lists of food iodine values developed from various countries. Urinary iodide concentrations of drink water samples were measured with the iodide-selective electrode. The average iodine intake of the thyroid patients was 411$\mu\textrm{g}$, which was 87% higher(p<0.05) than that of the control subjects(220$\mu\textrm{g}$). Patients with hyperthyroidism and hypothyroidism or simple goiter excreted the most(0.6442ppm) amount of iodide respectively in the urine, with the control subject in the middle(0.5229ppm). Iodide concentrations of the drinking water samples were found to be in the range of 0.0015ppm to 0.0214ppm, which seemed to vary depending on the kind(underground water vs public water) and the location.

• Journal of the East Asian Society of Dietary Life
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• v.8 no.1
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• pp.28-35
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• 1998

This study was conducted to evaluate the nutritional status of elementary school lunch programs. The subjects of this study consisted of 170 elementary school students(male 51.8% : female 48.2%) in the 5th and 6th grades. The dietary intake of nutrients was assessed by the modified 24-hour recall method. The results are summarized as follows: the average body weight was 41.3$\pm$7.93kg for boys and 40.5$\pm$ 8.35kg for girls. The average height was 149.5$\pm$5.88cm for boys and 146.2$\pm$5.82cm for girls. The total daily energy and nutrient intake was below the RDA's except for the intake of niacin and ascorbic acid. School lunchs provided 31.5% of total energy intake ; 32.5% of carbohydrate intake, 31.9% of protein intake and 33.4% of fat intake. Therefore, school lunchs largely contributed to the nutritional balance of these children. The food habit score was poor for 40.6% of the subjects.

• Journal of the Korean Society of Food Culture
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• v.11 no.5
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• pp.689-698
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• 1996

This study was designed to investigate food consumption patterns and nutrient intakes of college students, divided into subgroups of normal weight men (no.=140), normal weight women (no.=101), and underweight women (no.=155) by body mass index. Frequency of food eaten, nutrient intakes from each meal, percentages of RDAs, and nutrient densities were analyzed using 24-hour recall records. It was very interesting in these results as follows. Normal weight men ate on the whole more frequently than other groups. Underweight women had higher intakes of nutrient than did normal weight women. However normal weight women consumed food of greater nutrient density than did other college students. Consequently, it is desirable to suggest nutrient density of food than learn RDAs for adequate diet in nutritional education programs.

• Journal of Community Nutrition
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• v.3 no.1
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• pp.53-58
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• 2001

Dietary pattern in relation to alcohol consumption was studied in 7,370 Korean adults aged 20 years and older in 1998 Koran National Health and Nutrition Survey in which 24 hour recall method was used for dietary survey, The aim of this study was to investigate the effect of alcohol consumption on food and nutrient intake among Koreans, Individual drinking data was collected by interview as a part of health behavior survey T est was adopted to between nutrient intake level and drinking status. Drinkers of both sexes showed less consumption of foods from vegetable origins than non-drinkers, Consequently,. They also had significantly less carbohydrate consumption then non-drinker. This result may suggest that diets of Korean drinkers is unbalanced in terms of low consumption of food from vegetable origin and carbohydrate, Nutrition education should focus on those issues to improve the nutritional status and prevent potential risk disease by unbalanced diet.

• Journal of Nutrition and Health
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• v.32 no.5
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• pp.585-591
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• 1999

The purpose of the present study was to measure the dietary folate intake of Korean women of childbearing age. Folate intake obtained from 24-hour recall method and food frequency questionnaire was assessed in two hundred and ninety-three nonpregnant and non-lactating healthy women of childbearing age. The mean folate intake of women aged 20-29 was 112.8ug/day, 49.3% of their recommended level of 250ug/day. Folate intake of women aged 30-49 was 129.0ug/day, significantly higher than that of participants aged 20-29. A quartile analysis on the folate intake revealed that there significant differences in the consumption of dark green, leafy vegetables (p<0.01), other vegetables (p<0.01), and fruits and legumes(p<0.05) between the highest of childbearing age is far from adequate. To reach of the present study show that the folate intake of Korean women of childbearing age is far from adequate. To reach the recommended intake level of 250ug/day for women of childbearing age, folate supplementation and special nutrition education promoting folate intake might be necessary.