Abstract
Purpose of the study . Investigation of the epidemiological process features in healthcare settings. Materials and methods . Here we carried out a retrospective epidemiological study in Kemerovo Region including 143 768 patient outcomes between 2012 and 2018. Results and conclusions . Average annual incidence of Acinetobacter spp. infection/colonization was 13,14 per 1000 patients (95% CI [13,14–14,35]) with range between 7,76 (95% CI [7,13–8,02]) to 20,58 (95% CI [20,04–20,82]). We revealed a trend to decreasing incidence of Acinetobacter spp. infection/colonization (average growth rate 54,9%, y = -2,0438x + 21,261, R² = 0,93), without any notable seasonality and or repeating cycles. Case-control study was then conducted among patients who were admitted to the neurology and neurosurgery units. Patients with stroke has 4,29-fold higher risk of Acinetobacter spp. infection/colonization (CI = 2,19–8,78) as compared to those without. The proportion of carbapenem resistant Acinetobacter baumannii strains was 58% and raised 3-fold from 2012 to 2018. The RAPD-PCR genotyping with amplification of the variable integron I fragment detected the circulation of two integron-positive A. baumannii clones in 2018 in these units.
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