Multivariate risk factors for asymptomatic carriage of C. difficile.

The left hand side of the table includes all participants with questionnaire data, the right hand side excludes 22 patients with loose or more frequent stool, but not meeting CDI diagnosis criteria (5 carriers and 17 non-carriers). No significant pairwise interactions were identified, but given the relatively small sample size the power to detect these is low. Excluding one participant with missing hospital exposure data.