[Rheumatism epidemiology in Europe]

The article describes the present and potential of the epidemiology of the rheumatic diseases in Europe, considering especially rheumatoid arthritis (rA) and fibromyalgia (FMA). This is preceded by a short review of the history of European rheuma-epidemiology within the past 40 years. In rA European rheumatologists and epidemiologists have made important contributions to a differentiated nosology, longterm follow up studies and prognostication, conceptualization and measurement of outcomes and the analysis of a possibly decreasing incidence and severity of the disease. In an own study we were able to use the 1987 revision of the ARA-criteria and to test their stability over time. Among 11,534 German residents of Hannover, aged 25-74 we identified 58 with clinically proven rA or undifferentiated arthritis (uA), resulting in an estimated true prevalence of 0.83% (prevalence according) to Rome-criteria 0.53%, ARA-criteria 1987 0.33%). 39/58 could be reexamined after an average of 29 months. Only 9 of 25 ARA-1987-positive rAs maintained their nosological status. The actual care of the total group seemed widely inadequate. The Concept of FMA has been developed in Canada (H. Smythe) and in Germany/Switzerland (W. Müller) at about the same time, in Europe under the notion of "generalized tendomyopathie". Whereas the credit for developing and defining FMA-criteria goes entirely to rheumatologists from North America, it is an European privilege to provide first epidemiological data. After Jacobsson's work in Malmö/Sweden we studied in Southern Germany 541 German residents of Bad Säckingen, aged 25-74. We eventually identified 10 subjects with a history of widespread pain, 17+ out of 34 tender points and 2 or less out of 10 control points, giving a minimal FMA-prevalence of 1.9% and an estimated true prevalence of 3.0% (95%-Ci 1.6-4.4%). We identified however several nosologic as well as nosographic difficulties, that question the concept of FMA as an exclusively rheumatological disorder within the spectrum of "soft tissue" rheumatism.