Logistic Regression Analysis of the Risk Factors for Multidrug-resistant Bacterial Infections in Chronic Rhinosinusitis

Abstract

Objective To analyze the risk factors of multidrug-resistant bacterial infections in patients with chronic rhinosinusitis.Methods The clinical data of 221 patients with chronic rhinosinusitis who were treated in our center from January 2010 to January 2017 were collected retrospectively. Specimens were collected for bacterial culture and antibiotic susceptibility testing. The risk factors for multidrug-resistant bacterial infections were analyzed.Results Univariate analysis showed that combined use of 3 or more antibiotics,high visual analogue scale score,high Lund-Kennedy score,long disease course(>5 years),high frequency of acute infections(more than 3 times a year),long duration of acute infection(>7 days),recurrent upper respiratory tract infections(>3 times per year),chronic otitis media,smoking history,allergic rhinitis,poor drainage,high frequency of antimicrobial use(≥3 times/year),use of multiple antibiotics(more than 3 types),aged over 60 years,and use of antibacterial drugs for over 7 days were the risk factors for production of multi-drug-resistant organism(MDRO) in patients with chronic sinusitis(all P<0.05). After adjusting for other factors,combined use of 3 or more antibiotics,high frequency of acute infections(more than 3 times a year),recurrent upper respiratory tract infections(>3 times per year),smoking history,allergic rhinitis,poor drainage,and high frequency of antimicrobial use(≥3 times/year) remained the risk factors for MDRO in patients with chronic sinusitis(all P<0.05).Conclusions Multidrug-resistant bacterial infections in patients with chronic sinusitis can be caused by a variety of factors. In the clinical practice,by focusing on the major risk factors,a comprehensive management strategy should be adopted to reduce the production of MDRO and improve the therapeutic outcomes.