식품성분표 차이에 따른 섭취 영양소 추정 비교 연구 = Comparative Study of Nutrient Intakes Estimated by Difference of Nutrient Database

다국어 초록 (Multilingual Abstract)

This study was conducted to investigate the influence of different nutrient databases in estimating nutrient intake. A nutrient survey with Food Frequency Questionnaire containing 65 food items was conducted with 2,426 subjects over 30 years of age living in Yeonchon-gun. Kyungki province. The nutrient intakes were first estimated by using one (A) nutrient database which was based on the Korean Food Composition Table, 4th edition. With the other (B) nutrient database which was based on the Korean RDA (Recommended Dietary Allowances) 6th edition, it was reestimated and two results were compared. For most nutrients except carbohydrate, calcium, vitamin C and 8-carotene, mean nutrient intake level estimated from database B was significantly higher than that from database A(p<0.05). Mean intake level of most nutrients from two databases were significantly correlated by Pearson's correlation coefficients (p<0.001). Results from the ranking of nutrient intake levels of the subjects by two databases were highly correlated (p>0.9, p<0.001). Weighted kappa values representing measures of agreement ranged from 0,55 for vitamin C to 0.97 for carbohydrate. The proportion of subjects classified into the same quintiles by two databases ranged from 45% for vitamin C to 96% for carbohydrate. This result implies that different nutrient database may produce substantial differences in estimating the absolute nutrient intake but may not be crucial in ranking or classifying individuals with regard to specific nutrient intake.