ArticleFrontiers in endocrinology2022
Difference of Precocious Puberty Between Before and During the COVID-19 Pandemic: A Cross-Sectional Study Among Shanghai School-Aged Girls.
Article in Frontiers in endocrinology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.
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31 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.
- Comparison of central precocious puberty frequency before and during COVID-19: a systematic review and meta-analysis.BMC endocrine disorders · 2024Pooled it
- Central precocious puberty in Türkiye, 2018-2024: national incidence, prevalence, and changes across the COVID-19 period.Frontiers in endocrinology · 2026Article
- The incidence of early and precocious puberty of children in two Chinese cities: a multi-center prospective cohort study.BMC endocrine disorders · 2025Article
- Impact of the COVID-19 pandemic on the incidence of central precocious puberty: A PRISMA-ScR-COMPLIANT scoping review.Archives of endocrinology and metabolism · 2025Article
- Clinical and epidemiological insights into early puberty in Thai girls: a 5-year study.Annals of pediatric endocrinology & metabolism · 2025Article
- Back to normal? A retrospective study on stimulation test and endocrinological diagnosis before, during and after COVID-19 pandemics.Frontiers in endocrinology · 2025Article
- High-fat diet-induced obesity accelerates puberty in male rats through SMIM20/phoenixin upregulation.Frontiers in endocrinology · 2025Article
- Development and comparison of multivariate diagnostic models for rapidly progressive central precocious puberty in girls: the role of serum osteocalcin.Frontiers in endocrinology · 2025Article
- Investigation of vitamin D deficiency in girls with growth and development variations-a single center study.Frontiers in pediatrics · 2025Article
- Successful treatment of PGAD/GPD with leuprolide: a case report.Frontiers in psychiatry · 2025Article
- Article
- Precocious puberty, pandemic and beyond.Pituitary · 2024Review
- Joint association of overweight/obesity, high electronic screen time, and low physical activity time with early pubertal development in girls: a case-control study.Scientific reports · 2024Article
- COVID-19 lockdown and the rate of central precocious puberty.Journal of endocrinological investigation · 2024Article
- Incidence of central precocious puberty declines to pre-pandemic levels post COVID-19 pandemic increase: single-center retrospective review in the United States.Frontiers in pediatrics · 2024Article
- Early Puberty Trend during the COVID-19 Pandemic in Singapore: A Retrospective Review in a Single Tertiary Centre.Journal of the ASEAN Federation of Endocrine Societies · 2024Article
- Clinical characteristics and genetic expansion of 46,XY disorders of sex development children in a Chinese prospective study.Endocrine connections · 2023Article
- Endocrinological Involvement in Children and Adolescents Affected by COVID-19: A Narrative Review.Journal of clinical medicine · 2023Review
- Precocious Puberty Diagnoses Spike, COVID-19 Pandemic, and Body Mass Index: Findings From a 4-year Study.Journal of the Endocrine Society · 2023Article
- Decline in the Age of Menarche in Istanbul Schoolgirls Over the Last 12 YearsJournal of clinical research in pediatric endocrinology · 2023Article
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Authors and funding
11 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: To compared the incidence rates and clinical features of precocious girls before and during the COVID-19 pandemic among Shanghai school-aged girls, and explored the potential mechanisms. Methods: This cross-sectional study collected medical data about precocious girls between 2016 and 2020 from Shanghai Children's Medical Center. Data of inpatient precocious girls from March to August in 2016-2019 (n=246) and 2020 (n=237) were collected. Subjects with abnormal brain and pituitary gland MRI reports, other endocrine diseases or chronic diseases were excluded. Finally, 209 precocious girls were included in the 2016-2019 group and 191 precocious girls were include in the 2020 group. Monthly incidence rates and clinical features were compared between before and during the COVID-19 pandemic. Linear regression models were used to examine the associations between biomarkers to explore the potential mechanisms. Results: Monthly incidence rates of precocious puberty in outpatient girls from March to December 2020 (0.44-1.36%) and in inpatient girls from March to August 2020 (27.04-47.83%) were higher than those in 2016-2019 (0.30-0.52% and 10.53-18.42%, respectively). Serum concentrations of GnRH were higher in the 2020 group than in the 2016-2019 group (2.81 vs 1.99 mg/L). Serum concentrations of MKRN3 (1.02 vs 1.93 ng/ml) and ghrelin (0.38 vs 0.88 ng/ml) were lower in the 2020 group than in the 2016-2019 group. Moreover, the serum concentration of ghrelin was positively associated with the serum concentration of MKRN3 [ Conclusions: These findings suggest an increased incidence of precocious puberty during the COVID-19 pandemic among Shanghai school-aged girls, which may be associated with decreased serum concentrations of MKRN3 and ghrelin, and indicated ghrelin as a potential regulatory mechanism of puberty.
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