Prevalence of Pseudomonas aeruginosa and antimicrobial-resistant Pseudomonas aeruginosa in patients with pneumonia in mainland China: a systematic review and meta-analysis

SummaryObjectiveTo estimate the prevalence of Pseudomonas aeruginosa and antimicrobial-resistant P. aeruginosa in ventilator-associated pneumonia (VAP), hospital-acquired pneumonia (HAP), and community-acquired pneumonia (CAP) in mainland China.MethodsMeta-analyses of 50 studies published from 2010 to 2014 were conducted, followed by pre-defined subgroup analyses and meta-regressions.ResultsP. aeruginosa accounted for 19.4% (95% confidence interval (CI) 17.6–21.2%) of all isolates in VAP, which was similar to the proportion in HAP of 17.8% (95% CI 14.6–21.6%), but significantly greater than the proportion in CAP of 7.7% (15/195, p