1. C-reactive protein predicts complications in community-associated S. aureus bacteraemia: a cohort study
- Author
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Steven J. Bowe, Eugene Athan, Raquel Cowan, and Carly L Botheras
- Subjects
0301 basic medicine ,Adult ,Male ,medicine.medical_specialty ,Staphylococcus aureus ,Complications ,Epidemiology ,030106 microbiology ,Bacteremia ,Skin Diseases ,C-reactive protein ,lcsh:Infectious and parasitic diseases ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Medical microbiology ,Risk Factors ,Internal medicine ,medicine ,Odds Ratio ,Humans ,lcsh:RC109-216 ,030212 general & internal medicine ,Prospective Studies ,S. aureus bacteraemia ,Aged ,Univariate analysis ,biology ,business.industry ,Medical record ,Mortality rate ,Pneumonia ,Middle Aged ,medicine.disease ,Infectious Diseases ,Diabetic foot ulcer ,Logistic Models ,biology.protein ,Female ,business ,Cohort study ,Research Article - Abstract
Background Staphylococcus aureus (S. aureus) bacteraemia is increasingly acquired from community settings and is associated with a mortality rate of up to 40% following complications. Identifying risk factors for complicated S. aureus bacteraemia would aid clinicians in targeting patients that benefit from expedited investigations and escalated care. Methods In this prospective observational cohort study, we aimed to identify risk factors associated with a complicated infection in community-onset S. aureus bacteraemia. Potential risk factors were collected from electronic medical records and included: - patient demographics, symptomology, portal of entry, and laboratory results. Results We identified several potential risk factors using univariate analysis. In a multiple logistic regression model, age, haemodialysis, and entry point from a diabetic foot ulcer were all significantly protective against complications. Conversely, an unknown entry point of infection, an entry point from an indwelling medical device, and a C-reactive protein concentration of over 161 mg/L on the day of admission were all significantly associated with complications. Conclusions We conclude that several factors are associated with complications including already conducted laboratory investigations and portal of entry of infection. These factors could aid the triage of at-risk patients for complications of S. aureus bacteraemia.
- Published
- 2021