Clinical impact of methicillin resistance on outcome of patients with Staphylococcus aureus infection: A stratified analysis according to underlying diseases and sites of infection in a large prospective cohort
Journal
Journal of Infection
Journal Volume
61
Journal Issue
4
Pages
299-306
Date Issued
2010
Author(s)
Kang C.-I.
Song J.-H.
Chung D.R.
Peck K.R.
Ko K.S.
Yeom J.-S.
Kim S.-W.
Chang H.-H.
Kim Y.-S.
Jung S.-I.
Son J.S.
So T.M.K.
Lalitha M.K.
Yang Y.
Huang S.-G.
Wang H.
Lu Q.
Carlos C.C.
Perera J.A.
Chiu C.-H.
Liu J.-W.
Chongthaleong A.
Thamlikitkul V.
Van Pham H.
Abstract
Objective: This study was conducted to identify the predictors of mortality and to evaluate the impact of methicillin resistance on outcome in patients with . Staphylococcus aureus infection according to underlying conditions and type of infection. Methods: An observational cohort study including 4949 patients with . S. aureus infection was conducted. We compared data from patients with MRSA infection with those with MSSA infection. Results: The 30-day mortality rate of MRSA group was significantly higher than that of MSSA group (15.6% vs. 6.2%, . P < 0.001). However, MRSA infection was not found to be independent risk factor for mortality after adjusting for other variables (OR = 1.03, 95% CI = 0.80-1.32). When we analyzed patients with . S. aureus bacteremia (n = 709), MRSA infection was found to be significantly associated with mortality in multivariate analysis (Adjusted OR = 1.69, 95% CI = 1.15-2.49). When the 30-day mortality rates were compared according to underlying diseases, the 30-day mortality rate of MRSA group was significantly higher than that of MSSA group in patients with malignancy or renal diseases. MRSA infection was also found to be one of the independent risk factors for mortality in patients with malignancy (adjusted OR = 1.69, 95% CI = 1.06-2.70) and in those with renal disease (adjusted OR = 1.70, 95% CI = 1.0-2.89), after adjustment for host variables. Conclusions: Methicillin resistance adversely affected the outcome of patients with . S. aureus infection, in patients with cancer or renal disease and in those with . S. aureus bacteremia, although MRSA infection was not found to be significantly associated with higher mortality in overall patient population. ? 2010 The British Infection Society.
SDGs
Other Subjects
meticillin; adolescent; adult; aged; article; bacterial endocarditis; bone infection; child; cohort analysis; controlled study; female; human; infant; infectious arthritis; kidney disease; major clinical study; male; malignant neoplastic disease; methicillin resistant Staphylococcus aureus infection; mortality; nonhuman; observational study; penicillin resistance; pneumonia; prognosis; prospective study; risk factor; skin infection; soft tissue infection; staphylococcal bacteremia; treatment outcome; urinary tract infection; Adolescent; Adult; Aged; Aged, 80 and over; Anti-Bacterial Agents; Bacteremia; Child; Child, Preschool; Cohort Studies; Female; Humans; Infant; Infant, Newborn; Kidney Diseases; Male; Methicillin Resistance; Methicillin-Resistant Staphylococcus aureus; Middle Aged; Neoplasms; Prospective Studies; Staphylococcal Infections; Treatment Outcome; Young Adult
Type
journal article