Last data update: May 13, 2024. (Total: 46773 publications since 2009)
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Query Trace: Prevention Epicenters Program from the Centers for Disease Control and Prevention[original query] |
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Multicenter study of the impact of community-onset Clostridium difficile infection on surveillance for C. difficile infection
Dubberke ER , Butler AM , Hota B , Khan YM , Mangino JE , Mayer J , Popovich KJ , Stevenson KB , Yokoe DS , McDonald LC , Jernigan J , Fraser VJ , Prevention Epicenters Program from the Centers for Disease Control and Prevention . Infect Control Hosp Epidemiol 2009 30 (6) 518-25 OBJECTIVE: To evaluate the impact of cases of community-onset, healthcare facility (HCF)-associated Clostridium difficile infection (CDI) on the incidence and outbreak detection of CDI. DESIGN: A retrospective multicenter cohort study. SETTING: Five university-affiliated, acute care HCFs in the United States. METHODS: We collected data (including results of C. difficile toxin assays of stool samples) on all of the adult patients admitted to the 5 hospitals during the period from July 1, 2000, through June 30, 2006. CDI cases were classified as HCF-onset if they were diagnosed more than 48 hours after admission or as community-onset, HCF-associated if they were diagnosed within 48 hours after admission and if the patient had recently been discharged from the HCF. Four surveillance definitions were compared: cases of HCF-onset CDI only (hereafter referred to as HCF-onset CDI) and cases of HCF-onset and community-onset, HCF-associated CDI diagnosed within 30, 60, and 90 days after the last discharge from the study hospital (hereafter referred to as 30-day, 60-day, and 90-day CDI, respectively). Monthly CDI rates were compared. Control charts were used to identify potential CDI outbreaks. RESULTS: The rate of 30-day CDI was significantly higher than the rate of HCF-onset CDI at 2 HCFs (P < .01). The rates of 30-day CDI were not statistically significantly different from the rates of 60-day or 90-day CDI at any HCF. The correlations between each HCF's monthly rates of HCF-onset CDI and 30-day CDI were almost perfect (rho range, 0.94-0.99; P < .001). Overall, 12 time points had a CDI rate that was more than 3 standard deviations above the mean, including 11 time points identified using the definition for HCF-onset CDI and 9 time points identified using the definition for 30-day CDI, with discordant results at 4 time points ((kappa = 0.794; P < .001). CONCLUSIONS: Tracking cases of both community-onset and HCF-onset, HCF-associated CDI captures significantly more CDI cases, but surveillance of HCF-onset, HCF-associated CDI alone is sufficient to detect an outbreak. |
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