Idiopathic premature adrenarche is associated with higher body mass index and insulin resistance markersPremature Adrenarche Linked to Higher Risk of Insulin Resistance

The Journal of clinical endocrinology and metabolism Published September 16, 2026 Study authors: Luciano Thais Milioni, Halah Mariana Peduti, Pinto Luís Eduardo Cruvinel, Castor Mayara Souza Ribas,… PubMed ↗ DOI ↗ Editorial oversight: Dr. Julia Lee, PhD · Oncology, Genomics & Drug Development

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Key Takeaway

Note the association between idiopathic premature adrenarche and markers of insulin resistance and hyperandrogenism.

The study investigated the metabolic and clinical profiles of females with idiopathic premature adrenarche (IPA) compared to age-matched controls. The analysis focused on markers of hyperandrogenism, body mass index, and various indicators of insulin resistance and lipid profiles. The results indicated that individuals with IPA demonstrated higher body mass index, higher fasting insulin, and increased markers of hyperandrogenism compared to the control group. Additionally, these individuals showed higher triglyceride levels and higher leptin levels, while showing lower high-density lipoprotein levels.

Several outcomes, including carotid intima-media thickness, were also noted as higher in the IPA cohort. However, the authors noted that the GRADE assessment rated the majority of these outcomes as having low certainty. The study also highlights that these findings are based on observational data, which limits the ability to establish a direct causal link between the condition and the observed metabolic changes.

Clinically, the findings suggest that women with a history of idiopathic premature adrenarche may require long-term monitoring. This is particularly relevant given the observed associations with insulin resistance and hyperandrogenism. However, clinicians should remain cautious when interpreting these results as evidence of definitive long-term cardiometabolic risk or established hyperandrogenism due to the limited certainty of the evidence.

This meta-analysis looked at 635 women who had idiopathic premature adrenarche (IPA) after their first period, comparing them to 307 healthy peers. The study looked for links between a history of early puberty and markers of insulin resistance, high androgens, and heart health.

The results showed that women with IPA had higher body mass index (BMI) and higher levels of fasting insulin and leptin. They also showed higher levels of triglycerides and markers of hyperandrogenism. Additionally, these women had lower high-density lipoprotein (HDL) and greater carotid intima-media thickness.

It is important to note that the evidence for these findings is currently rated as low certainty. Because this was an observational study, it shows a link between the conditions rather than a direct cause. These results suggest that women with a history of IPA may need long-term monitoring for metabolic health, but more research is needed to confirm these risks.

What this means for you:

Women with a history of premature adrenarche may show higher markers of insulin resistance and hyperandrogenism.

Common questions

What did the study find about insulin resistance?

The study found that women with idiopathic premature adrenarche (IPA) had higher levels of fasting insulin and higher homeostasis model assessment scores for insulin resistance compared to the control group. These findings suggest a link between a history of IPA and markers of insulin resistance.

Are there links to heart health or other markers?

The study reported that women with IPA had higher triglyceride levels and higher carotid intima-media thickness. They also had lower high-density lipoprotein (HDL) and higher leptin levels. These markers are often monitored as part of overall metabolic health.

How certain are these results?

The researchers noted that the evidence for most outcomes was rated as low certainty. Because the data comes from observational studies, it shows a link between the conditions rather than a direct cause. You should speak with a doctor about what these results mean for your specific health.

Study Details

Study typeMeta analysis

EvidenceLevel 1

PublishedSep 2026

PMID42375004

View Original Abstract ↓

CONTEXT: Idiopathic premature adrenarche (IPA) has been associated with a higher risk of metabolic and reproductive dysfunction, but long-term/adult outcomes remain incompletely known. OBJECTIVE: To assess the relationship between IPA and metabolic syndrome, as well as polycystic ovarian syndrome, in premenarcheal adolescent and adult women. METHODS: We conducted a systematic review and meta-analysis of observational studies reporting outcomes in females with IPA after menarche. Databases were searched through February 2025. Primary outcomes included body mass index (BMI), insulin resistance markers, and clinical and biochemical markers of hyperandrogenism. Data were pooled using random-effects models. The GRADE approach was applied to assess the certainty of evidence. RESULTS: A total of 21 studies comprising 635 females with IPA and 307 age-matched controls were included. Compared to controls, IPA individuals showed significantly higher BMI (mean difference: 1.4; CI: 1.0-1.9), fasting insulin, and homeostasis model assessment of insulin resistance, indicating persistent insulin resistance. Markers of hyperandrogenism, including Ferriman-Gallwey score, dehydroepiandrosterone sulfate, and Free androgenic index, were also elevated. Secondary analyses revealed higher triglycerides, lower high-density lipoprotein, increased leptin, and greater carotid intima-media thickness, supporting an early pattern of cardiometabolic risk. GRADE assessment rated most outcomes as low certainty. CONCLUSION: Women with a history of IPA are at increased risk of long-term insulin resistance and hyperandrogenism, with early signs of adverse cardiometabolic profiles. These findings support the need for long-term monitoring in this population.

Idiopathic premature adrenarche is associated with higher body mass index and insulin resistance markersPremature Adrenarche Linked to Higher Risk of Insulin Resistance

Common questions

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