What is the prevalence of Adrenal Insufficiency?

Adrenal insufficiency is estimated to affect approximately 100 to 140 per million people in Western populations, though the true prevalence of adrenal insufficiency is likely higher due to frequent underdiagnosis. Because the condition manifests in various forms—primary (Addison’s disease) and secondary—incidence rates vary significantly depending on the underlying cause and geographical region.

What is the estimated prevalence and incidence of adrenal insufficiency?

Estimates for the prevalence of adrenal insufficiency generally range from 100 to 280 cases per million, depending on the specific etiology. Incidence rates are often cited at approximately 5 to 6 new cases per million people per year for primary adrenal insufficiency. However, these figures are conservative; many patients remain undiagnosed until they experience an adrenal crisis, a life-threatening emergency that highlights the clinical challenge of identifying the condition in its early stages.

How do gender, age, and geography affect the condition?

The distribution of adrenal insufficiency varies based on the cause:

• Gender: Autoimmune primary adrenal insufficiency is more common in females, reflecting the general trend of autoimmune disorders.


• Age: Onset can occur at any age, though autoimmune forms typically present in adults between 30 and 50 years old.


• Geography: Prevalence rates appear higher in industrialized nations with robust diagnostic screening, whereas in other regions, the condition may be significantly under-reported.

Why is accurate data on adrenal insufficiency challenging to obtain?

Tracking the true number of individuals with adrenal insufficiency is difficult because symptoms are often vague—such as fatigue, weight loss, and muscle weakness—leading to misdiagnosis or delayed recognition. Within our own platform, 113 people with adrenal insufficiency have joined the DiseaseMaps.org community, providing a valuable real-world perspective that complements clinical data by highlighting the lived experience of patients navigating this diagnostic journey.

Next steps

• Consult an endocrinologist to discuss symptoms and appropriate diagnostic testing, such as the ACTH stimulation test.


• Connect with the DiseaseMaps.org community to share experiences with others living with adrenal insufficiency.


• Carry medical identification, such as a bracelet or card, detailing your condition and steroid dependency to ensure safety during emergencies.

Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment.

References

• Orphanet: Rare diseases portal (orpha.net)


• NIH Genetic and Rare Diseases Information Center (GARD)


• National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)


• The Hormone Health Network (Endocrine Society)