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Table 2 Incidence of Pseudomonas aeruginosa isolates among patients

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

  Gastric aspirate Respiratory
  Placebo group Probiotic group Placebo group Probiotic group
Number of patients acquiring P. aeruginosa during the stay 6 3 13 5
Median time before acquisition (days [range]) 30 (6–53) 16 (6–18) 11a (5–40) 50a (11–75)
NAE mean (95% CI) 73 (60–85) 87 (82–92) 69a (59–79) 77a (67–87)
% NA at day 21 97.4 94.7 85.3 98.5
% NA at day 42 84.4 94.7 70.9 93.3
  1. aP < 0.05. CI, confidence interval; NA, not acquired; NAE, non acquisition expectancy.