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Original Article

Rising incidence of central precocious puberty in Thailand: a nationwide population-based study before, during, and after the COVID-19 pandemic (2018–2024)

Pattara Wiromrat, Preamrudee Poomthavorn, Ratikorn Chaisiwamongkol, Chaiyawat Suppasilp, Ouyporn Panamonta, Ratchaneewan Sinitkul

Question: Did the incidence of central precocious puberty (CPP) and premature thelarche (PT) among Thai children change during 2018–2024?
Finding: CPP incidence in girls more than doubled during the COVID-19 pandemic and remained elevated thereafter, primarily at age 8 to <9 years. PT incidence increased progressively, particularly in girls aged 7 to <8 years.
Meaning: In peripubertal age groups, CPP and PT incidence increases may reflect pandemic-related factors, obesity, awareness, or earlier pubertal onset.

DOI: https://doi.org/10.3345/cep.2026.00983 [Epub ahead of print]

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