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Evaluation of hospital readmissions for surgical site infections in Italy

Background
The objectives of this investigation are to assess the prevalence of hospital readmissions for surgical site infections (SSIs) in patients aged ≥18 in Italy and to describe the clinical characteristics of these patients and evaluate the possible association with readmission for SSIs.


Methods
A retrospective epidemiological study was conducted between January and May 2015 considering a sample of patients aged ≥18 years admitted to the surgical wards of two hospitals in Naples and undergoing surgery in the year 2014.


Results
3.8% of patients had been readmitted and 28.8% of them were readmitted to hospital due to SSIs. The multiple logistic regression model showed that readmissions for SSIs were significantly more common in smokers (odds ratio [OR] = 3.14; 95% confidence interval [CI] = 1.13-8.69), in patients with immunosuppression status (OR = 8.28; 95% CI = 1.76-38.87), in patients with low serum albumin (OR = 3.07; 95% CI = 1.05-9.01) and in patients who had undergone a surgical procedure classified as contaminated (OR = 10:44; 95% CI = 3.11-35.01) compared with those that had undergone a surgical procedure classified as clean.


Conclusions
The results point to the need that hospital infection prevention strategies are implemented in order to reduce morbidity and mortality for patients. Moreover, the measures taken to prevent infections would lead to a reduction in health spending since almost one third of readmissions to the hospital in our study were due to SSIs.