[Hemophilia and other inherited blood coagulation disorders in Poland].

The aim of the study was to analyze the data on 3224 patients with inherited blood coagulation disorders registered in Poland till December 1st, 2003. In 2269 registered hemophilia patients, 1953 were hemophilia A, and 316 were hemophilia B. Hemophilia A occurs in 1512 families, and hemophilia B in 240 families. Severe hemophilia constitutes the majority of hemophilia A and B cases (59.7% and 56.6% respectively). About 50% of the hemophiliacs have no history of bleeding diathesis in the family. The mean age of hemophilia A patients is 30.9 years, and that of hemophilia B patients--29.2 years. Prevalence of hemophilia in Poland is approximately 1:12 300 inhabitants. Hemophilia A has been diagnosed in 60.6% of all patients with inherited blood coagulation disorders registered in Poland, von Willebrand disease-- in 21.9%, hemophilia B-- in 9.8% and factor VII deficiency-- in 3.3%.