Clinical risk factors for Clostridium difficile-associated diseases

Many factors appear to influence the chance of acquiring Clostridium difficile (C. difficile) infection, and an accurate identification of risk factors could be beneficial in many ways. Thus, in the present study, clinical risk factors for C. difficile-associated disease (CDAD) in Korea were identified. A total of 93 patients who met the inclusion criteria and 186 age/gender/ward/admission period-matched control patients were included in this study. Statistically significant associations were found with presence of chronic lung diseases (odds ratio [OR], 3.41; 95% confidence interval [CI], 1.25–9.32; p = 0.017), presence of ileus (OR, 10.05; 95% CI, 2.42–41.80; p = 0.001), presence of intensive care unit (ICU) stay (OR, 9.79; 95% CI, 3.03–31.68; p < 0.001), use of cephalosphorins (OR, 3.30; 95% CI, 1.13–9.62; p = 0.029), history of surgery (OR, 10.89; 95% CI, 3.96–29.92; p < 0.001), and history of longterm care facility stay (OR, 14.90; 95% CI, 4.02–55.26; p < 0.001). Awareness of CDAD is critical to provide appropriate clinical care. Surveillance of the national incidence rate and multicenter studies are needed, and the potential value of a C. difficile vaccine should be studied.