What is the prevalence of Paget's Disease?

Paget's disease of bone, or osteitis deformans, has a prevalence that varies significantly by geography and age, typically affecting 1% to 3% of individuals over the age of 55 in high-prevalence regions. While often considered a common condition in older populations rather than a rare disease, accurate global prevalence data for Paget's disease is challenging to pinpoint due to the high frequency of asymptomatic cases that remain undiagnosed.

How does Paget's disease prevalence vary by age and gender?

The incidence of Paget's disease increases sharply with age; it is rarely diagnosed in individuals under 40. Data from the NIH GARD indicates that while the condition can affect both sexes, men are statistically more likely to be diagnosed with Paget's disease than women, typically at a ratio of approximately 3:2. Because many patients are asymptomatic, the true prevalence of Paget's disease is likely higher than current clinical records suggest.

Are there geographic patterns in Paget's disease?

Epidemiological studies have identified distinct geographic "hot spots" for Paget's disease. The highest prevalence rates are observed in the United Kingdom, Western Europe, and regions with populations of British descent, such as Australia and New Zealand. Conversely, Paget's disease is notably rare in parts of Asia and Africa. While the DiseaseMaps.org community currently includes 3 members living with Paget's disease, these real-world experiences reflect the diverse, often localized nature of the condition's impact on patients worldwide.

What are the primary challenges in tracking Paget's disease?

Tracking the prevalence of Paget's disease is complicated by several factors:

• Asymptomatic presentation: Many individuals with Paget's disease have no symptoms and are only discovered incidentally through X-rays for unrelated issues.


• Diagnostic variability: Differences in screening protocols between countries lead to inconsistent data collection.


• Misdiagnosis: Symptoms like bone pain can be incorrectly attributed to osteoarthritis or other age-related conditions.

Next steps

• Consult a rheumatologist or endocrinologist if you suspect bone-related symptoms or have a family history.


• Request an alkaline phosphatase blood test or skeletal scintigraphy if your physician suspects Paget's disease.


• Connect with the 3 members sharing experiences on DiseaseMaps.org to find support and peer insights.

Medical disclaimer: This content is for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment.

References

• NIH Genetic and Rare Diseases Information Center (GARD): Paget's disease of bone.


• Orphanet: Rare bone diseases database.


• Paget’s Association: Epidemiology and prevalence statistics.


• PubMed: "The epidemiology of Paget's disease of bone" (Clinical review).