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Table 1 General and clinical characteristics of the study population

From: Gut microbiota alterations in critically ill older patients: a multicenter study

Variable Adults > 60 years
n = 72
Adults < 60 years
n = 83
p-valuee
Gender a
 Male 34 (47.2) 49 (59) 0.141
 Female 38 (52.8) 34 (41)
BMI (Kg/m2) b 25.2 ± 4.1 24.4 ± 3.9 0.265
BMI Classification a
 Under weight  20 (24.8) 5 (6) 0.001
 Adequate 32 (44.4) 44 (53.0)
 Excess weight 20 (27.8) 34 (41.0)
Admission diagnosis a
 Trauma 4 (5.6) 22 (26.5) 0.817
 Pulmonary 16 (22.2) 7 (8.4)
 Cardio cerebral vascular 14 (19.4) 10 (12)
 Renal/liver/pancreatic 6 (8.3) 4 (4.8)
 Surgery 4 (5,6) 5 (6,0)
 Infection disease 26 (36,1) 24 (28.9)
 Other diagnoses d 2 (2.8) 11 (13.3)
Sepsis a
 Yes 42 (58.3) 30 (36.1) 0.006
 No 30 (41.7) 53 (63.9)
Serum glucose (mg/dL) c 157 (124.2;188.5) 153 (121;206.3) 0.896
CRP (mg/dL) c 8,9 (4.4;22.6) 11.9 (6.3;22.3) 0.437
SOFA score c 3 (1;8) 1 (1;6) 0.029
APACHE II score b 21 ± 8 15 ± 8 0.000
Antibiotics a
 Yes 42 (58.3) 29 (34.9) 0.004
 No 30 (41.7) 54 (65.1)
Complications a
 Yes 64 (88,9) 64 (77.1) 0.054
 No 8 (11.1) 19 (22.9)
ICU stay (days) 9 (5;15) 7 (4;17) 0.392
Discharge condition a    0.206
 Alive 49 (68.1) 64 (77.1)
 Dead 23 (31.9) 19 (22.9)
  1. a Data are presented as mean and percentage
  2. b Data are presented as mean ± SD
  3. c Data are presented as median and interquartile ranges
  4. d Addictions, anxiety attacks, poisoning, circulatory disorder, neuromuscular disorder, cancer
  5. e Group-wise comparisons of the variables. For the qualitative variables the Chi-square test was used; according to the distribution of quantitative variables, the T-test or Mann-Whitney U test was applied for the independent groups; p < 0.05
  6. BMI Body Mass Index
  7. CRP C-reactive protein
  8. SOFA Sequential Organ Failure Assessment
  9. APACHE II Acute Physiology and Chronic Health Evaluation
  10. ICU Intensive Care Unit