L'utilite du modele de rhame et sudderth bdans la surveillance des infections nosocomiales

The objective of the study is to test Rhame and Sudderth's model, to calculate cumulative incidence of nosocomial infection from prevalence and duration. We carried out a follow-up study in a surgical department in Charles Nicolle hospital on a sample of 643 patients admitted between October 1 and December 31.1992. We calculated the following parameters: Average length of hospital stay: 5.5 days. Estimated average duration of nosocomial infection 6.8 days. Prevalence rate of nosocomial infection: 11.7%. the observed cumulative incidence was 11.6%. While the expected cumulative incidence by the model of Rhame and Sudderth was 9.5%. Differences between observed and expected cmulative incidence were not significant