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Published on: July 5, 2022
Early puberty and risk for type 2 diabetes in men
Claes Ohlsson1,2, Maria Bygdell1, Maria Nethander1,3
1Centre for Bone and Arthritis Research, Institute of Medicine, the Sahlgrenska Academy at University of Gothenburg, Klinfarmlab, Vita Stråket 11, Sahlgrenska University Hospital, S-413 45, Gothenburg, Sweden.
Early puberty is a significant independent risk factor for developing type 2 diabetes in men. This finding suggests puberty timing, not just BMI, influences future diabetes risk.
Area of Science:
- Endocrinology
- Metabolic Diseases
- Epidemiology
Background:
- The relationship between pubertal timing and type 2 diabetes risk, independent of childhood BMI, remains unclear.
- Understanding this association is crucial for identifying individuals at higher risk for adult-onset diabetes.
Purpose of the Study:
- To investigate the association between pubertal timing and the risk of adult-onset type 2 diabetes in Swedish men.
- To determine if this association persists independently of prepubertal Body Mass Index (BMI).
Main Methods:
- Utilized data from 30,697 Swedish men with BMI at ages 8 and 20, and age at Peak Height Velocity (PHV) as a pubertal timing marker.
- Type 2 diabetes diagnoses (n=1851) were obtained from the Swedish National Patient Register.
- Cox regression analysis was employed, with follow-up split to account for non-proportional hazards.
Main Results:
- Earlier age at PHV was inversely associated with both early and late type 2 diabetes diagnosis.
- These associations remained significant after adjusting for childhood BMI.
- Early PHV also predicted the need for insulin treatment in type 2 diabetes patients.
Conclusions:
- Early puberty emerges as a novel, independent risk factor for type 2 diabetes.
- Approximately 15% of type 2 diabetes cases could potentially be avoided if individuals did not experience early puberty.
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