Journal
EPIDEMIOLOGY AND INFECTION
Volume 141, Issue 1, Pages 143-152Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0950268812000465
Keywords
Healthcare worker; infection control; population-based; residing with children; Staphylococcus aureus nasal carriage
Funding
- Research Council of Norway [191264]
- Northern Norway Regional Health Authority [7150.00003, SFP877-09, SFP920-10]
- Odd Berg Group Medical Research fund
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Healthcare workers (HCWs) may be a reservoir for Staphylococcus aureus transmission to patients. We examined whether HCW status is associated with S. aureus nasal carriage and population structure (spa types) in 1302 women (334 HCWs) and 977 men (71 HCWs) aged 30-69 years participating in the population-based Tromso Study in 2007-2008. Multivariable logistic regression models were used. While no methicillin-resistant S. aureus (MRSA) was isolated, overall, 26.2% of HCWs and 26.0% of non-HCWs were S. aureus nasal carriers. For women overall and women residing with children, the odds ratios for nasal carriage were 1.54 [95% confidence interval (CI) 1.09-2.19] and 1.86 (95% CI 1.14-3.04), respectively, in HCWs compared to non-HCWs. Moreover, HCWs vs. non-HCWs had a 2.17 and 3.16 times higher risk of spa types t012 and t015, respectively. This supports the view that HCWs have an increased risk of S. aureus nasal carriage depending on gender, family status and spa type.
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