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Ann Pediatr Endocrinol Metab > Volume 17(3); 2012 > Article
Growth Status and Body Composition in Children with Central Precocious Puberty and Early Puberty.
Hyung Joong Kim, Yong Hyuk Kim, Sochung Chung
1Department of Pediatrics, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea.
2Department of Pediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, Korea.
The aim of this study was to analyze the growth status and body composition in children with central precocious puberty (CPP ) and early puberty (EP). METHODS: One hundred and five girls (mean age, 7.7 +/- 0.8 years) with early thelarche were included, and a gonadotropin-releasing hormone (GnRH) stimulation test was performed. We divided the subjects into two groups based on peak leuteinizing hormone (LH) levels; peak LH level > or = 5 mIU/L was diagnosed as CPP (n = 49), and peak LH level < 5 mIU/L was diagnosed as EP (n = 56). Patients' height, weight, and body composition were measured, and their body mass index (BMI) and Z-score were calculated. Fat mass (FF), fat-free mass (FFM), fat mass index (FMI), fat-free mass index (FFMI), and percent of body fat (PBF) were compared.
Height, weight, and height Z-score were not significantly different between the CPP and EP groups. Weight Z-score (P = 0.045), BMI (P = 0.015), BMI Z-score (P = 0.006), PBF (P = 0.018), FM (P = 0.047), and FMI (P = 0.017) in the EP group were significantly greater than in the CPP group.
In EP girls, increased BMI was attributed to increased FMI. Body-composition analysis might be a useful tool in monitoring life style modification during pubertal growth.
Keywords: Puberty, precocious;Body composition;Obesity


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