Surgical site infections at the National XXXX Institute in Mexico: a case-control study.

@entity1 @entity6 @entity28 @entity5 @entity794 @entity281 @entity580 @entity526
OBJECTIVES: To quantify the surgical @entity281 rate and to identify risk factors associated with @entity281 . METHODS: We conducted a case-control study of all surgical @entity1 between January 1, 1993, and June 30, 1994. The frequency of @entity281 per 100 surgeries was calculated. The odds ratio (OR) was estimated by using logistic regression analysis. SETTING: A 130-bed tertiary-care teaching hospital for adult @entity1 with @entity5 . RESULTS: The study followed 3372 surgeries. Three hundred thirteen @entity1 had a @entity281 (rate per 100 surgeries: 9. 30). The risk factors associated with @entity281 were @entity6 (OR = 2.5, 95% confidence interval [CI] = 1.27-4. 91), @entity28 (OR = 1.76, 95% CI = 1.14-2.7), presence of surgical drains for >5 and <16 days (OR = 1.84, 95% CI = 1.02-3.31), and presence of surgical drains for >/=16 days (OR = 2.14, 95% CI = 1. 0-4.6). The bacteria most frequently isolated were @entity526 38 (21.8% of the total of microorganisms found), Pseudomonas sp 22 (12.6%), @entity794 16 (9.2%), and coagulase-negative @entity794 25 (13.6%). The coexistence of other @entity580 was greater among the cases (OR = 1.8, 95% CI = 1.1-3.1) than in the control group. CONCLUSIONS: The @entity281 rate in our hospital is slightly higher than the rates reported for general hospitals. The risk factors associated with @entity281 are similar to those previously reported. @entity6 , @entity28 , and prolonged presence of a surgical drain increased the risk of @entity281 .
