Three Separate Clinical Entities of Infective Endocarditis-A Population-Based Study From Southern Finland 2013-2017.

Our study indicates that in areas where injection drug use is common IDUIE should be regarded as a major risk group for IE, along with HAIE, and not seen as part of CAIE. Three different risk groups, CAIE, HAIE, and IDUIE, with variable characteristics and outcome should be recognized in IE.