Performance of the present-on-admission indicator for Clostridium difficile infection.

The performance of a hospital- and community-onset Clostridium difficile infection definition using administrative data with a present-on-admission indicator was compared with definitions using clinical surveillance. For hospital-onset C. difficile infection, there was moderate sensitivity (68%) and high specificity (93%); for community-onset, sensitivity and specificity were high (both 85%).

Statin use and the risk of Clostridium difficile in academic medical centres.

Objectives: To estimate the possible relationship between statin use and the risk of healthcare facility onset Clostridium difficile.

Methods: Patients over 18 years of age admitted to hospitals contributing data to the University HealthSystem Consortium between 2002 and 2009 were eligible. Patients with the ICD-9-CM code 008.