Table 2.

Medication exposures prior to C. difficile testing events (n=723)

Medication	N (%)
Antibiotic exposure (prior 30d)
Any systemic antibiotic	486 (67.2)
Third/fourth-generation cephalosporins	124 (17.2)
Clindamycin	10 (1.4)
Fluoroquinolones	18 (2.5)
Immunosuppressant use at time of C. difficile testing
Calcineurin inhibitors	634 (87.7)
Tacrolimus	605 (83.7)
Cyclosporine	45 (6.2)
Mycophenolate mofetil	539 (74.6)
Sirolimus	117 (16.2)
Corticosteroids	78 (10.8)
Azathioprine	84 (11.6)
Proton-pump inhibitor exposure (prior 7d)	124 (17.2)

d- days