Research

Hormonal

Earlier age at menarche (specifically onset before 11 years) is associated with a significantly higher risk of developing type 2 diabetes and elevated cardiometabolic risk factors in adult women, independent of early-adulthood BMI.

For women who experienced early puberty (before age 11), there is a statistically higher baseline risk for type 2 diabetes and metabolic issues later in life, independent of their current weight. This does not mean diabetes is inevitable, but it suggests that metabolic monitoring (e.g., checking HbA1c, fasting glucose, and lipids) should be prioritized earlier and more frequently than for those with later menarche, starting in early adulthood.

GoodSupportsHIGH confidence
Menarche onset < 11 years [vs. 13-14 years (referent)] was associated with higher risk of diabetes (RR = 1.34; 95% CI: 1.14-1.57) after adjusting for sociodemographic factors, maternal education, maternal and paternal diabetes, and birth weight. This persisted after further control for BMI at age 20 years and relative leg length.
Noel T. Mueller et al. · Cardiovascular Diabetology · 2014

Why this rating

Large prospective cohort (n=8,075), rigorous adjustment for confounders, but relies on retrospective self-report for the primary exposure.

Source

Earlier age at menarche is associated with higher diabetes risk and cardiometabolic disease risk factors in Brazilian adults: Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)

Noel T. Mueller et al. · Cardiovascular Diabetology · 2014

DOI 10.1186/1475-2840-13-22

cohort · n=8075Cited 86×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →