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Table 2 Baseline characteristics of randomized patients (150 patients, divided into Groups A and B, to maintain blinding)

From: Probiotics: Prevention of Severe Pneumonia and Endotracheal Colonization Trial—PROSPECT: a pilot trial

  Group A Group B Total
N = 78 N = 72 N = 150
Age (years), mean (standard deviation) 58.8 (17.0) 61.2 (15.4) 60.0 (16.3)
APACHE II, mean (standard deviation) 21.0 (8.4) 22.7 (7.3) 21.8 (7.9)
Female, n (%) 31 (39.7) 31 (43.1) 62 (41.3)
Type of patient, n (%)    
 Medical 66 (84.6) 60 (83.3) 126 (84.0)
 Surgical 3 (3.8) 5 (6.9) 8 (5.3)
 Trauma 9 (11.5) 7 (9.7) 16 (10.7)
Admitting diagnosis, n (%)    
 Cardiovascular 4 (5.1) 4 (5.6) 8 (5.3)
 Respiratory 35 (44.9) 26 (36.1) 61 (40.7)
 Gastrointestinal 2 (2.6) 0 (0.0) 2 (1.3)
 Neurologic 8 (10.3) 10 (13.9) 18 (12.0)
 Sepsis 16 (20.5) 17 (23.6) 33 (22.0)
 Trauma 7 (9.0) 7 (9.7) 14 (9.3)
 Metabolic 2 (2.6) 1 (1.4) 3 (2.0)
 Hematologic 1 (1.3) 0 (0.0) 1 (0.7)
 Renal 1 (1.3) 2 (2.8) 3 (2.0)
 Other medical 2 (2.6) 4 (5.6) 6 (4.0)
 Other surgical 0 (0.0) 1 (1.4) 1 (0.7)