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논문 기본 정보

자료유형
학술저널
저자정보
Yoon Sumi (Department of Laboratory Medicine Chung-Ang University College of Medicine Seoul Korea) Lim Yong Kwan (Department of Laboratory Medicine Chung-Ang University College of Medicine Seoul Korea.) Kim Hye Ryoun (Department of Laboratory Medicine Chung-Ang University College of Medicine Seoul Korea) Lee Mi-Kyung (Department of Laboratory Medicine Chung-Ang University College of Medicine Seoul Korea) Kweon Oh Joo (Department of Laboratory Medicine Chung-Ang University College of Medicine Seoul Korea)
저널정보
대한진단검사의학회 Annals of Laboratory Medicine Annals of Laboratory Medicine 제43권 제1호
발행연도
2023.1
수록면
82 - 85 (4page)
DOI
10.3343/alm.2023.43.1.82

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Cytokeratin 19 fragment antigen 21-1 (CYFRA 21-1) is useful for predicting and monitoring non-small cell lung cancer prognosis. We established reference intervals (RIs) of CYFRA 21-1 in Korean adults, including those older than 60 years. Data of 4,098 apparently healthy subjects (age range, 20–87 years) were analyzed after excluding those with a history of malignancy, high tumor marker concentrations (except CYFRA 21-1), and/or abnormal findings on a chest computed tomography scan through medical chart review. After removing two outliers, RIs of CYFRA 21-1 were determined using data of 4,096 subjects based on the non-parametric method (2.5th and 97.5th percentiles) according to CLSI guidelines EP28-A3c. The subjects were divided into two and four groups according to sex and age (20–40, 41–50, 51–60, and >60 years), respectively, and the median CYFRA 21-1 concentration was compared between the groups. The RI of CYFRA 21-1 was 0.66–3.84 ng/mL, applicable to both men and women. Regardless of sex, the CYFRA 21-1 concentration increased with age, suggesting that age-dependent RIs of CYFRA 21-1 should be applied. Rather than using a single RI provided by the manufacturer, the RI of CYFRA 21-1 should be continually verified and established in each clinical laboratory.

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