• Dong-Mei Gan, Jie Fang, Ping-Ping Zhang, Yu-Dan Zhao, and Ya-Nan Xu.
• Department of Pediatric Endocrinology, Ningbo Women and Children's Hospital, Ningbo, Zhejiang, China.
• Clinics (Sao Paulo). 2023 Jan 1; 78: 100244100244.

IntroductionPrior studies have found inconsistent results regarding the relationship between vitamin D status and Idiopathic Central Precocious Puberty (ICPP).ObjectiveTo assess the role of serum 25-hydroxyvitamin D (25 [OH]D) levels in ICPP development.MethodThe authors retrospectively collected data from 221 girls with ICPP and 144 healthy girls between January 2017 and December 2019. The participants' serum 25(OH)D levels were measured using an automatic chemiluminescence method, and the association between serum 25(OH)D levels and the risk of ICPP was assessed using multivariate logistic regression analysis. Odds Ratios (OR) with 95% Confidence Intervals (95% CI) were calculated as effect estimates.ResultsSerum 25(OH)D levels in the ICPP group were significantly lower than those in healthy controls (p < 0.001). Multivariate analysis indicated that girls with insufficient vitamin D levels (OR = 0.201; 95% CI 0.094-0.428; p < 0.001) and sufficient vitamin D levels (OR = 0.141; 95% CI 0.053-0.375; p < 0.001) both had a lower risk of ICPP than girls with vitamin D deficiency. Moreover, the authors found that the height (p = 0.014), weight (p = 0.014), breast stage (p = 0.010), mother's height (p < 0.001), and luteinizing hormone/follicle-stimulating hormone ratio (p = 0.010) in girls with ICPP could be associated with levels of vitamin D.ConclusionThis study found that a low serum 25(OH)D level is an independent risk factor for ICPP, and several characteristics of girls with ICPP could be affected by their vitamin D status.Copyright © 2023 HCFMUSP. Published by Elsevier España, S.L.U. All rights reserved.

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