What is the prevalence of Granulomatosis with Polyangiitis (GPA)?

Granulomatosis with Polyangiitis (GPA) is a rare systemic vasculitis with an estimated prevalence ranging from 5 to 30 cases per 100,000 individuals worldwide. While exact figures vary by region, it is considered a rare disease, with an annual incidence of approximately 2 to 12 new cases per million people.

How common is Granulomatosis with Polyangiitis?

Granulomatosis with Polyangiitis (GPA) is classified as a rare disease. Because symptoms often mimic more common respiratory infections or autoimmune conditions, accurate prevalence data is challenging to determine. Many clinicians believe the true prevalence of Granulomatosis with Polyangiitis (GPA) is likely higher than official records suggest due to historical underdiagnosis and diagnostic delays.

Who is most likely to develop Granulomatosis with Polyangiitis?

The condition can affect individuals of any age, but it most commonly presents in adults between the ages of 40 and 65. Regarding demographics, Granulomatosis with Polyangiitis (GPA) appears to show the following patterns:

• Gender: It affects males and females with roughly equal frequency.


• Ethnicity: Higher prevalence rates have been reported in populations of Northern European descent compared to those of Asian or African descent.


• Geographic Variance: Incidence appears higher in northern latitudes, though this may also reflect differences in healthcare reporting and specialized diagnostic access.

How does the DiseaseMaps community experience these statistics?

While clinical literature provides the broad epidemiological picture, the Granulomatosis with Polyangiitis (GPA) community on DiseaseMaps.org offers a real-world perspective. Currently, 111 people with Granulomatosis with Polyangiitis (GPA) have joined our platform to share their lived experiences, confirming that while the disease is statistically rare, the patient community provides a vital network for navigating the complexities of the diagnosis.

Next steps

• Consult a rheumatologist or vasculitis specialist to discuss your specific symptoms and diagnostic history.


• Join the Granulomatosis with Polyangiitis (GPA) community on DiseaseMaps.org to connect with others sharing similar diagnostic journeys.


• Stay informed on the latest research through the Vasculitis Foundation or NIH GARD updates.

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

References

• NIH Genetic and Rare Diseases Information Center (GARD): "Granulomatosis with polyangiitis"


• Orphanet: "Granulomatosis with polyangiitis" (ORPHA:900)


• Vasculitis Foundation: "What is GPA?"


• PubMed/NCBI: "Epidemiology of ANCA-associated vasculitis"