우리나라 소아청소년의 공복 혈중 지질 농도의 분포 및 참고범위의 타당성 검증
Distribution of the Fasting Lipid Levels and Validation of the Reference Intervalin Korean Adolescents
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초록
소아청소년기의 이상지질혈증 유병율이 증가함에 따라 이에 대한 조기발견과 관리에 대한 중요성이 커지고 있다. 본 연구는 소아청소년의 성별과 연령에 따른 공복 혈청 지질 농도의 분포를 살펴보고, 참고 범위 설정을 위한 백분위수 값을 검토하여 이상지질혈증 진단기준과 비교해 봄으로써 참고범위의 타당성을 검증하고자 하였다. 2013년부터 2016년까지 총 4년에 걸친 국민건강영양조사 자료에서 10세 이상 20세 미만 연령의 소아청소년 총 2,711명(남자 1,436명, 여자 1,275명)의 데이터를 대상으로 하였다. 총콜레스테롤, LDL 콜레스테롤, HDL 콜레스테롤, non-HDL 콜레스테롤, 중성지방의 평균 공복 혈중 농도는 모두 남아보다 여아에서 더 높았다. 총 콜레스테롤 농도의 95백분위수에 해당하는 값은 남아의 경우 200 mg/dL로 95백분위수와 일치하는 수준이었고, 여아의 경우 208 mg/dL로 나타나 90∼95백분위수 사이에 해당하였다. LDL 콜레스테롤, non-HDL 콜레스테롤, 중성지방의 95백분위수는 남아의 경우 각각 123, 148, 147 mg/dL였으며, 여아의 경우 각각 131, 149, 139 mg/dL였다. 대부분의 지표는 90∼95백분위수 범위 내의 적절한 수준으로 나타났다. 반면에 LDL 콜레스테롤 130 mg/dL 기준은 남아에서, 중성지방의 기준은 여아에서 다소 높은 수준이라 판단되었다. 향후 연구대상자 및 자료를 보완하여 우리 실정에 좀 더 적합한 기준 정립이 필요하다.
Abstract
With the growing prevalence of dyslipidemia in adolescents, its early detection and management is becoming increasingly important. This study overviewed the fasting lipid concentration distribution of adolescents according to the sex and age, and reviewed the percentile of its reference interval. This study targeted 2,713 adolescents aged between 10 and 19 (1,436 boys, 1,275 girls) based on the data from 2013 to 2016, Korean Health and Nutrition Examination Survey. The mean fasting lipid concentration of total cholesterol, LDL cholesterol, HDL cholesterol, non-HDL cholesterol, and triglyceride of girls was higher than those of boys. Although the 95th percentile of the cholesterol value was 200 mg/dL in boys, which was equivalent to the diagnosis criterion, the mean value of girls was 208 mg/dL, staying between the 90th and 95th percentiles. The 95th percentiles of the LDL cholesterol, non-HDL cholesterol, and triglyceride value were 123, 148, and 147 mg/dL in boys, respectively, and 131, 149, and 139 mg/dL in girls, respectively. Most of the criteria of dyslipidemia were at the proper level, within the 90th and 95th percentile. While the criteria of LDL cholesterol (130 mg/dL) was higher in boys, the triglycerides was higher in girls. In conclusion, criteria more suitable to Korean adolescents will need to be established with further studies.
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