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National trends in prevalence of carbapenem-resistant (CR) and multidrug-resistant (MDR) Pseudomonas aeruginosa isolates from children >1 year old (data are from the Surveillance Network Database–USA database, 1999–2012). The proportion of MDR and CR P aeruginosa isolates increased significantly by 4% every year (odds ratios, 1.04 [95% confidence interval (CI), 1.03–1.04] [P for trend < .001] and 1.04 [95% CI, 1.04–1.05] [P for trend < .001], respectively).
