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AIM:To analyze the incidence and possible risk factors in hospitalized patients treated with Clostridium difficile infection(CDI).METHODS:A total of 11751 patients were admitted to our clinic between 1 January 2010 and 1 May2013.Two hundred and forty-seven inpatients were prospectively diagnosed with CDI.For the risk analysis a 1:3 matching was used.Data of 732 patients matched for age,sex,and inpatient care period and unit were compared to those of the CDI population.Inpatient records were collected from an electronic hospital database and comprehensively reviewed.RESULTS:Incidence of CDI was 21.0/1000 admissions(2.1%of all-cause hospitalizations and 4.45%of total inpatient days).The incidence of severe CDI was 12.6%(2.63/1000 of all-cause hospitalizations).Distribution of CDI cases was different according to the unit type,with highest incidence rates in hematology,gastroenterology and nephrology units(32.9,25 and24.6/1000 admissions,respectively) and lowest rates in 1.4%(33/2312) in endocrinology and general internal medicine(14.2 and 16.9/1000 admissions)units.Recurrence of CDI was 11.3%within 12 wk after discharge.Duration of hospital stay was longer in patients with CDI compared to controls(17.6 ± 10.8d vs 12.4 ± 7.71 d).CDI accounted for 6.3%of allinpatient deaths,and 30-d mortality rate was 21.9%(54/247 cases).Risk factors for CDI were antibiotic therapy[including third-generation cephalosporins or fluoroquinolones,odds ratio(OR) = 4.559;P < 0.001],use of proton pump inhibitors(OR = 2.082,P< 0.001),previous hospitaiization within 12 mo(OR = 3.167,P < 0.001),previous CDI(OR = 15.32;P < 0.001),while presence of diabetes mellitus was associated with a decreased risk for CDI(OR = 0.484;P< 0.001).Treatment of recurrent cases was significantly different from primary infections with more frequent use of vancomycin alone or in combination(P < 0.001),and antibiotic therapy duration was longer(P < 0.02).Severity,mortality and outcome of primary infections and relapsing cases did not significantly differ.CONCLUSION:CDI was accounted for significant burden with longer hospitaiization and adverse outcomes.Antibiotic,PPI therapy and previous hospitaiization or CDI were risk factors for CDI.
AIM: To analyze the incidence and possible risk factors in hospitalized patients treated with Clostridium difficile infection (CDI). METHODS: A total of 11,751 patients were admitted to our clinic between January 1 and 2010 May2013.Two hundred and forty-seven inpatients were prospectively diagnosed with CDI.For the risk analysis a 1: 3 matching was used. Data of 732 patients matched for age, sex, and inpatient care period and unit were compared to those of the CDI population.Inpatient records were collected from an electronic hospital database and comprehensively reviewed .RESULTS: Incidence of CDI was 21.0 / 1000 admissions (2.1% of all-cause hospitalizations and 4.45% of total inpatient days). The incidence of severe CDI was 12.6% (2.63 / 1000 of all-cause hospitalizations) . Distribution of CDI cases was different according to the unit type, with highest incidence rates in hematology, gastroenterology and nephrology units (32.9,25 and 24.6 / 1000 admissions, respectively) and lowest rates in 1.4% (33/2312) in endocrinology and general internal medicine (14.2 and 16.9 / 1000 admissions) units. Recurrence of CDI was 11.3% within 12 weeks after discharge. Duration of hospital stay was longer in patients with CDI compared to controls (17.6 ± 10.8d vs 12.4 ± 7.71 days ) CDI accounted for 6.3% of allinpatient deaths, and 30-d mortality rate was 21.9% (54/247 cases). Factors for CDI were antibiotic therapy [including third-generation cephalosporins or fluoroquinolones, odds ratio (OR) ; P <0.001], use of proton pump inhibitors (OR = 2.082, P <0.001), previous hospitaiization within 12 mo (OR = 3.167, of diabetes mellitus was associated with a decreased risk for CDI (OR = 0.484; P <0.001). Treatment of recurrent cases was significantly different from primary infections with more frequent use of vancomycin alone or in combination (P <0.001), and antibiotic therapy duration was longer (P <0.02). Severity, mortality and outcome of primary infections and relapsi ngCases did not significantly differ. CONCLUSION: CDI was accounted for significant burden with longer hospitaiization and adverse outcomess.Antibiotic, PPI therapy and previous hospitaiization or CDI were risk factors for CDI.