Severe comorbid infections in patients with inflammatory joint diseases: frequency, structure, risk factors

Severe comorbid infections (SCI) are infections that develop against the background of the underlying disease and require hospitalization and/or intravenous administration of antibacterial drugs. In the structure of comorbid infections in patients with inflammatory joint diseases (IJD), the number of SCI does not exceed 4%. However, they are the direct cause of death in these patients. Various factors, including sociodemographic factors, as well as factors directly related to the IJD itself, including therapy, contribute to the development of SCI. This article discusses the incidence, structure and risk factors in patients with IJD.