Abstract
Background
The frequency of surgical site infection (SSI) in western countries shows a variable
tendency because of technical improvements on one hand and an aging and an increasingly
fragile population on the other. Our hypothesis is that there is no time trend in
the incidence of SSI. The objective of this article was to assess incidence trends
of SSI, after adjusting for confounders and variables associated with SSI frequency.
Methods
We studied trends of SSI over 13 y in our hospital in a cohort (26,810 patients),
evaluating the factors associated with SSI (superficial or deep-organ/space), in a
bivariate and multivariate analysis.
Results
Global SSI was 4.8%, most of which was superficial (3.4%). We obtained two well-adjusted
equations (area under receiver operating characteristic curves: 0.77 and 0.78, with
nine variables). Main risk factors for SSI were duration of surgery (>60 min), infection
on hospital admission, emergency and vascular surgery. After controlling for all risk
factors, we found that superficial SSI showed a significant reduction (75) yearly,
but deep-organ/space SSI rates remained stable over time.
Conclusions
We obtained a 7% yearly reduction in superficial SSI and no variation for deep-organ/space
SSI after adjusting for eight risk and confounding factors.
Keywords
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Article info
Publication history
Published online: June 03, 2013
Accepted:
April 26,
2013
Received in revised form:
March 26,
2013
Received:
November 6,
2012
Footnotes
Study done by the Department of Preventive Medicine and Public Health and Microbiology of the Universidad Autónoma, Madrid, and Service of Preventive Medicine, Hospital Universitario La Paz (HU La Paz), Madrid.
Identification
Copyright
© 2013 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
