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Table 4 Simple Cox analysis indicating risk factors for Pseudomonas aeruginosa respiratory and/or colonization

From: Oral probiotic and prevention of Pseudomonas aeruginosa infections: a randomized, double-blind, placebo-controlled pilot study in intensive care unit patients

Variable Patients without P. aeruginosa in respiratory tract (n = 190) Patients with P. aeruginosa in respiratory tract (n = 18) Hazard ratio 95% CI P
Age (years; mean ± SD) 56.7 ± 16.3 62.8 ± 15.0 1.02 0.97–1.05 0.48
Weight (kg; mean ± SD) 75.3 ± 16.9 83.9 ± 16.6 1.03 1.00–1.06 0.023
  1. CI, confidence interval; SD, standard deviation.