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자료유형
학술저널
저자정보
Choi Yu Jung (The Catholic University of Korea) Lee Yoon Ji (The Catholic University of Korea) Lee Na Yeong (The Catholic University of Korea) Lee Seon-Hwa (The Catholic University of Korea) Kim Seul-Ki (The Catholic University of Korea) Ahn Moon Bae (The Catholic University of Korea) Kim Shin-Hee (The Catholic University of Korea) Cho Won-Kyoung (The Catholic University of Korea) Cho Kyoung Soon (The Catholic University of Korea) Jung Min Ho (The Catholic University of Korea) Suh Byung-Kyu (The Catholic University of Korea)
저널정보
대한소아내분비학회 Annals of Pediatirc Endocrinology & Metabolism Annals of Pediatirc Endocrinology & Metabolism 제25권 제4호
발행연도
2020.1
수록면
240 - 247 (8page)

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Purpose: The discriminatory performance of insulin-like growth factor 1 (IGF-1) and insulin-like growth factor binding protein-3 (IGFBP-3) was investigated by correlating their values with chronological age (CA), bone age (BA), and pubertal status (PS) for diagnosis of isolated growth hormone deficiency (IGHD). Methods: We evaluated IGF-1 and IGFBP-3 levels in 310 short-stature subjects subdivided into 2 groups: IGHD (n=31) and non-IGHD (n=279). IGF-1 and IGFBP-3 were assayed using immune-radiometric assay and transformed into standard deviation score (SDS) according to CA, BA, and PS. Results: The highest sensitivity was found in IGF-1-SDS for CA and IGFBP-3-SDS for CA (22.6% and 30.0%, respectively). The highest specificity was found in IGF-1-SDS for PS and IGFBP-3-SDS for PS (98.2% and 94.4%, respectively). Groups with the highest positive predictive values were IGF-1-SDS for BA and IGFBP-3-SDS for BA (10.9% and 5.1%, respectively). Highest negative predictive values were seen in IGF-1-SDS for CA and IGFBP-3-SDS for CA (98.4% and 98.4%, respectively). Conclusion: IGF-1-SDS for CA, instead of IGF-1-SDS for BA or PS, could be used as a standard variable for IGHD screening. The sufficiently high specificity of IGF-1-SDS for PS suggests that this value is a useful tool for identification of IGHD.

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