Table 2.

Type and number of hospitalised infections experienced by biological agent users (n=364 unique hospitalisations)^*

Site/type of infection	n (%)
Pneumonia	124 (23.7)
Skin and soft tissue infection	90 (17.2)
Septicaemia/bacteraemia	87 (16.6)
Genitourinary tract infection	83 (15.8)
Upper respiratory tract infection	41 (7.8)
Abdominal abscess	22 (4.2)
Gastroenteritis	16 (3.1)
Device-associated infections	11 (2.1)
Septic arthritis	10 (1.9)
†Aspergillosis (1), coccidioidomycosis (1), cryptococcosis (1), endemic mycosis (1), histoplasmosis (3), legionellosis (2), nocardiosis actinomycosis (1), non-tuberculosis mycobacteria (1), toxoplasmosis (1), tuberculosis (5), zoster (6)	23 (4.4)
Other, including encephalitis, endocarditis, osteomyelitis, meningitis	17 (3.2)

Data were combined for the biological-free and switcher groups given similar distributions of the types of infections.

^*More than one type of infection may occur during a hospitalisation.

^†Numbers in parentheses refer to the number of hospitalised infections of that specific type.