The objective of the study was to assess the incidence of inflammatory joint diseases and possible environmental factors contributing to their occurrence in a defined population in Finland. All rheumatologists practising in the Northern Savo rheumatological outpatient departments collected data on their newly diagnosed patients with an inflammatory joint disease in 2010. Antibodies to Aggregatibacter actinomycetemcomitans (Aa) and Porphyromonas gingivalis (Pg) were determined from patients with various arthritides. The incidence of all arthritis cases was 141.8/100,000 (95

作者：A, Kononoff；L, Arstila；P, Pussinen；H, Kautiainen；P, Elfving；E, Savolainen；H, Niinisalo；J, Rutanen；O, Marjoniemi；O, Kaipiainen-Sepp?nen

来源：Rheumatology international 2017 年