Question: how common are myeloproliferative neoplasms?
Answer: Discussion. MPNs are uncommon across the geographical regions investigated. Meta‐analysis identified ET to be the most common classic MPN (annual incidence 1.03 per 100,000) followed by PV (annual incidence 0.84 per 100,000) and PMF (annual incidence 0.47 per 100,000) (Table 1).