반정량식품섭취빈도조사지의 타당성 검증 및 보정 - 지역사회 유전체 코호트 참여자를 대상으로 -

안윤진,이지은,조남한,신철,박찬,오범석,김규찬,Ahn, Youn-Jhin,Lee, Ji-Eun,Cho, Nam-Han,Shin, Chol,Park, Chan,Oh, Berm-Seok,Kimm, Ku-Chan 대한지역사회영양학회 2004 대한지역사회영양학회지 Vol.9 No.2

We carried out a validation-calibration study of the food frequency questionnaire (FFQ) that we had previously developed for a community-based cohort of the Korean Genome and Health Study of the Korea National Genome Research Institute. We have collected a total of 254 3-day diet records (DRs) from 400 subjects, 200 each randomly selected from the two study cohorts of Ansung and Ansan. FFQ was administered at the time of cohort recruitment in 2001, and DRs were collected during a two month period from January through February of 2002. The mean age was 52.2 years. Farming for men and housewife for women were the most common occupations. The majority of the subjects had undergone 6∼12 years of education. The general characteristics including demographic and other data were not different from the total cohort subjects. Absolute levels of consumed nutrients including total energy (energy), protein, fat, carbohydrate, calcium, phosphorus, sodium, potassium, iron, retinol, carotene, vitamin A, thiamin, riboflavin, niacin and vitamin C were compared. The average of energy intake was not significantly different between the data collected by the 2 methods. However, consumptions of protein and fat were higher in data of DRs, whereas that of carbohydrate was higher in FFQ data. Significant correlation of each nutrient consumption between the data sets was observed (p < 0.05) except in the case of iron, while the average correlation coefficient between them was 0.22 ranging from 0.33 for energy to 0.11 for iron. The results of cross classification by quantile for exact classification ranged from 25.2% (carotene) to 35.0% (phosphorus), and from 64.6% (vitamin A) to 76.4% (retinol) for adjacent classification. The proportion of completely opposite classification was 8.1% in average. Calibration slope was estimated by regression and calibration parameters ranged from 0.025 for carotene to 0.423 for niacin. We conclude that the FFQ we have developed is an appropriate tool for assessing the nutrient intakes as ranking exposures in epidemiology studies in view that amounts of consumed nutrients obtained by FFQ were similar to those collected by DRs, that correlations between consumed nutrients collected by these methods were significant, and that classification results were relatively fair. The correlation coefficients, however, were lower than expected, which may be mainly due to the survey season. In fact, any short-term dietary survey cannot accurately reflect the overall dietary intakes that change heavily depending on seasons. Further studies including the analysis of chemical indices would be helpful for the studies of causal relationship between the diet and disease.

소아 만성 기능성 변비의 치료 성적과 장기적 예후

안윤진,박재옥,Ahn, Yoon Jin,Park, Jae Ock 대한소아소화기영양학회 2006 Pediatric gastroenterology, hepatology & nutrition Vol.9 No.2

목 적: 만성 기능성 변비 환아의 임상 증상과 경과를 관찰하고, 장기적인 치료 성적을 평가하여 치료 결과에 영향을 미치는 요인을 분석함으로써 변비 치료에 도움을 얻고자 하였다. 방 법: 2001년 3월부터 2005년 6월까지 순천향대학교 부천병원에서 만성 기능성 변비로 진단받고 1개월 이상 치료받고 경과를 볼 수 있었던 63명의 환아를 대상으로 임상 증상, 치료에 따른 경과, 치료 결과 및 재발 여부 등을 조사하고 예후와 관련된 요인을 분석하였다. 결 과: 대상 환아들의 성별 분포는 남아가 35명(55.6%), 여아가 28명(44.4%)이었고 남아가 여아에 비해 유분증이 유의있게 많았다. 발병 연령은 평균 $21.1{\pm}23.5$ (1.9~84.0)개월이었으며 진단 당시 평균 연령은 $47.1{\pm}34.2$ (6.9~138.0)개월이었다. 치료 전 주당 배변 횟수는 평균 $3.2{\pm}2.3$ (0.5~10.0)회였고, 변비와 동반된 증상으로는 유분증이 34명(54.0%), 굵은 변이 30명(47.6%), 배변 횟수의 감소가 20명(31.7%), 배변 시 힘주기와 변 참기가 각각 19명(30.2%) 순이었다. 추적 관찰 기간은 평균 $34.2{\pm}14.6$ (3.6~60.0)개월이었으며 전화 통화 당시 변비 증상으로부터 회복된 환아는 44명(69.8%)이었고 증상이 남아있었던 환아는 19명(30.2%)이었다. 변비에서 회복된 환아들의 임상적 경과를 살펴보면 유분증이 있었던 환아들이 유분증이 없어진 시간은 치료 시작 후로 부터 평균 $4.3{\pm}2.4$ (1.0~36.0)개월이었으며, 배변시 힘을 많이 주었던 환아들이 변을 힘주지 않고 누게 된 시간은 평균 $5.0{\pm}1.4$ (0.8~36.0)개월이었고, 변을 참았던 환아들이 변을 참지 않게 된 시간은 평균 $5.0{\pm}3.1$ (1.0~36.0)개월이었다. 변비가 재발한 경우는 15명(23.8%)이었으며 남아가 9명(60%), 여아가 6명(40%)이었다. 치료 종료 후로부터 재발하기 까지의 기간은 평균 $2.9{\pm}1.9$ (1.0~6.0)개월이었으며 성별, 발병 나이, 변비의 증상, 치료 시작 전 증상의 지속 기간, 진단 당시 유분증 유무, 이유식 시작 시기와 대변 가리기 훈련 시기 등은 재발에 영향을 미치지 않았으며 치료 기간이 재발에 영향을 미치는 유일한 인자였다. 결 론: 대부분의 소아 만성 기능성 변비 환아가 치료 시작 후 5개월 경에 증상이 회복되었으나 치료 종료 후 약 3개월 내에 재발할 수 있으며 치료 기간이 재발 여부에 영향을 미치는 것으로 보아 충분한 기간 동안 치료하는 것과 정기적인 추적 관찰이 중요하다고 하겠다. Purpose: The purpose of this study was to evaluate the long term outcome and the factors contributing to treatment outcome for chronic functional constipation in children. Methods: Sixty three children were enrolled who had chronic functional constipation and could be followed by telephone contact. They were treated at the Bucheon Soonchunhyang Hospital for more than 1 month and observed from March 2001 to June 2005. We analyzed the clinical features, symptoms and signs, as well as the course and results of treatment. Results: The male to female ratio was 35 (55.6%) : 28 (44.4%). The mean age at the onset of symptoms and diagnosis was $21.1{\pm}23.5$ (1.9~84.0) months and $47.1{\pm}34.2$ (6.9~138.0) months, respectively. The mean defecation frequency before treatment was $3.2{\pm}2.3$ (0.5~10.0) times per week. The symptoms associated with constipation were as follows: soiling 34 (54.0%) which was more common in males than females, large stools in 30 (47.6%), decreased bowel movements less than three times a week in 20 (31.7%), straining during defecation in 19 (30.2%) and retentive posturing 19 (30.2%). The mean duration of follow-up was $34.2{\pm}14.6$ (3.6~60.0) months and 44 (69.8%) patients had their symptoms resolve ("success") and 19 (30.2%) were not resloved ("fail") from the constipation. The time for recovery from soiling, straining during defecation and retentive posturing after treatment was $4.3{\pm}2.4$ (1.0~36.0), $5.0{\pm}1.4$ (0.8~36.0) and $5.0{\pm}3.1$ (1.0~36.0) months, respectively. A relapse of the constipation occurred in 15 (23.8%) patients, 9 (60%) boys and 6 (40%) girls. The time to relapse after cessation of treatment was $2.9{\pm}1.9$ (1.0~6.0) months and the only risk factor associated with relapse was the initial duration of treatment. Conclusion: Most of the patients had resolution of symptoms within five months after treatment; relapse occurred within three months after the interruption of treatment. The duration of treatment was important for recovery and for the prevention of relapse in the constipated children. Thus a long term maintenance of therapy and follow-up is necessary for chronic functional constipation in children.

코코넛 기반 활성탄 필터의 라돈 제거 효율

안윤진(Yun-Jin Ahn),김기섭(Gi-Sub Kim),김태환(Tae-Hwan Kim),김상록(Sang-Rok Kim) 대한방사선과학회(구 대한방사선기술학회) 2023 방사선기술과학 Vol.46 No.2

The Korea Institute of Radiological and Medical Sciences plans to produce 225Ac, a therapeutic radio-pharmaceutical for precision oncology, such as prostate cancer. Radon, a radioactive gas, is generated by radium, the target material for producing 225Ac. The radon concentration is expected to be about 2000 Bq·m-3. High-concentration radon-generating facilities must meet radioactive isotope emission standards by lowering the radon concentration. However, most existing studies concerning radon removal using activated carbon filters measured radon levels at concentrations lower than 1000 Bq·m-3. This study measured 222Rn removal of coconut-based activated carbon filter under a high radon concentration of about 2000 Bq·m-3. The 222Rn removal efficiency of activated carbon impregnated with triethylenediamine was also measured. As a result, the 222Rn removal amount of the activated carbon filter showed sufficient removal efficiency in a 222Rn concentration environment of about 2000 Bq·m-3. In addition, despite an expectation of low radon reduction efficiency of Triethylenediamine-impregnated activated carbon, it was difficult to confirm a significant difference in the results. Therefore, it is considered that activated carbon can be used as a radioisotope exhaust filter regardless of whether or not Triethylenediamine is impregnated. The results of this study are expected to be used as primary data when building an air purification system for radiation safety management in facilities with radon concentrations of about 2000 Bq·m-3.

한국 농촌 성인의 혈청 Carotenoids농도와 이에 영향을 미치는 요인에 관한 연구

안윤진(Ahn Youn Jhin),백희영(Paik Hee Young) 한국영양학회 1997 Journal of Nutrition and Health Vol.30 No.5

40대 이상 농촌 및 중소도시 성인의 식품섭취 패턴 (Pattern)과 질환별 유병위험도 : 한국인유전체역학조사사업 일부 대상자에 대해

안윤진(Ahn Younjhin),박윤주(Park Yun-Ju),박선주(Park Seon-Joo),민해숙(Min Haesook),곽혜경(Kwak Hye-Kyoung),오경수(Oh Kyung-Soo),박찬(Park Chan) 韓國營養學會 2007 Journal of Nutrition and Health Vol.40 No.3

Recently, dietary pattern analysis was emerged as an approach to examine the relationships between diet and risk of chronic diseases. This study was to identify groups with population who report similar dietary pattern in Korean genome epidemiology study (KoGES) and association with several chronic diseases. The cohort participants living in Ansung and Ansan (Gyeonggi province) were totally 10,038. Among those, 6,873 subjects with no missing values in food frequency questionnaire were included in this analysis. After combining 103 food items into 17 food groups, 4 dietary factors were obtained by factor analysis based on their weights. Factor 1 showed high factor loadings in vegetables, mushrooms, meats, fish, beverages, and oriental-cereals. Factor 2 had high factor loadings in vegetables, fruits, fish, and factor 3 had high factor loadings in cereal-oriental, cerial-western and snacks. Factor 4 showed positive high factor loadings in rice and Kimchi and negative factor loadings in mushrooms and milk and dairy products. Using factor scores of four factors, subjects were classified into 3 clusters by K-means clustering. We named those 'Rice and Kimchi eating' group, 'Contented eating' group, and 'Healthy and light eating' group depending on their eating characteristics. 'Rice and Kimchi eating' group showed high prevalence in men, farmers and 60s. 'Contented eating' group and 'Healthy and light eating' group had high prevalence in women, people living in urban area (Ansan Citizen), with high-school education and above, and a monthly income of one million won and more. 'Contented eating' group appeared lower distribution proportion in the sixties and 'Healthy and light eating' group does higher in the fifties. 'Contented eating' versus 'Rice and Kimchi eating', odds ratio for hypertension, diabetes, metabolic syndrome and obesity significantly decreased after adjusting age and sex (OR = 0.64, 0.73, and 0.85 respectively, 95% CI). Although our results were from a cross-sectional study, these imply that the dietary patterns were related to diseases. (Korean J Nutr 2007; 40(3): 259~269)

한국 중년 남성을 대상으로 한 식품 섭취빈도 조사에서 나타난 식품 섭취빈도의 상관성 분석

안윤진(Ahn Younjhin),백희영(Paik Hee Young),안윤옥(Ahn Yoon Ok) 韓國營養學會 2000 Journal of Nutrition and Health Vol.33 No.2

농촌과 중소도시지역 40세 이상 성인의 영양소 섭취 질의 평가

이지은,안윤진,이주영,차정호,박찬,김규찬,Lee, Ji-Eun,Ahn, Youn-Jhin,Lee, Ju-Young,Cha, Jung-Ho,Park, Chan,Kimm, Ku-Chan 대한지역사회영양학회 2004 대한지역사회영양학회지 Vol.9 No.4

To assess the quality of nutrient intake by area of Korean adults, a dietary survey with the 3-day record method was obtained from 324 subjects aged 40 years and older but younger than 70 (52.4 $\pm$ 8.7) living in a rural area (Ansung) and suburban area of a middle-sized city (Ansan). The quality of nutrient intake was assessed by analyzing Nutrient Adequacy Ratio (NAR), Mean Adequacy Ratio (MAR) and Index of Nutritional Quality (INQ). The average daily mean energy intakes were 1,832 ㎉ for Ansung and 1,842 ㎉ for Ansan, respectively. Daily intakes of fat for Ansung and Ansan subjects were 40.9 and 40.3 g, and those for protein were 75.1 and 73.1 g, respectively. The overall calorie: protein: fat ratio (CPF) of energy intake was 63 : 17 : 20. Daily mean intakes of protein, fat, calcium, phosphorus, iron, potassium, carotene, sodium, thiamin, and niacin were significantly higher in Ansung residents than in Ansan subjects (p < .05). The average intakes of energy, calcium, vitamin A were lower than Recommend Dietary Allowance (RDA) in both areas. Note, over 30% of the study subjects had less than 75% of RDA of calcium, vitamin A and riboflavin. The MAR was higher in Ansung than Ansan residents (0.86 and 0.85, respectively; p < .05). INQs were over 1 for most nutrients except calcium (0.87), and that of calcium and phosphorus was each significantly higher in Ansung than Ansan subjects. Based on these results, nutrient intake quality of subjects aged 40 to 69 years living in the surveyed rural area is comparable to that of semi-industrialized suburban area in Korea. Dietary deficiency in all of calcium, vitamin A, and riboflavin, however, was a common problem for both rural and suburban residents.

조사 계절에 따른 식품섭취빈도 조사의 평균 섭취 횟수와 섭취량 변화

양재정,임현술,고광필,안윤진,안윤옥,박수경,Yang, Jae-Jeong,Lim, Hyun-Sul,Ko, Kwang-Pil,Ahn, Youn-Jhin,Ahn, Yoon-Ok,Park, Sue-Kyung 대한예방의학회 2007 예방의학회지 Vol.40 No.3

Objectives : This study was conducted to investigate the systematic error, such as seasonal change or inadequate food items, in a food frequency questionnaire administered to workers in a Nuclear Power Plant, Korea. Methods : We performed three repeat-tests with 28 subjects on May 13, July 8 and Dec 16, 1992. Our food frequency questionnaire (FFQ) comprised 84 foods organized into 7 food-groups, and was composed of the items of usual intake frequency (8 categories) and the amount per intake (3 or 4 categories) over the previous year. We compared the means of intake frequency and the frequency of the portion-size according to each season using Repeated Measures ANOVA and Pearson's chisquare test with Fisher's exact test. Results : We found the significant seasonal changes of several food items in intake frequency measurement. These items were typical seasonal foods such as mandarin orange, plum and green vegetables, while the single questions consisted of inadequate food items such as thick beef or similar soup and various kimchi products. Significant seasonal changes in portion-size were found in only two items: cooked rice-brown and fresh frozen fishes. Conclusions : The systematic errors observed could caused loss of validity in the FFQ. Consideration should be given for seasonal variation in FFQ survey and methodological concerns are needed to improve the quality for measuring usual diet pattern.

계절별, 요일별로 측정한 성인 남녀의 영양소 섭취량에서의 개인간 변이와 개인내 변이

권은실(Kwon Eun Sil),안윤진(Ahn YounJhin),심재은(Shim Jae Eun),백희영(Paik Hee Young),박찬(Park Chan),김규찬(Kimm Kuchan),주영수(Ju Young Su),김동현(Kim Dong Hyun) 韓國營養學會 2004 Journal of Nutrition and Health Vol.37 No.10

구연발표 : 중,장년기 여성의 식사패턴과 골밀도간의 연관성 연구: 한국인유전체역학조사사업 예방유전체 지역사회 코호트

박선주 ( Seon Joo Park ),안윤진 ( Youn Jhin Ahn ),김효미 ( Hyo Mi Kim ),주성은 ( Seong Eun Joo ),오경수 ( Kyung Soo Oh ),박찬 ( Chan Park ) 대한지역사회영양학회 2008 대한지역사회영양학회 춘-추계학술대회지 Vol.2008 No.2