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Table 2 SGI1 and severity of the illness: comparison of clinical and biological dataa

From: “Does the Salmonella Genomic Island 1 (SGI1) confer invasiveness properties to human isolates?”

Variables SGI1-positive SGI1-negative p-valuec
N 12 88  
Age (years) 13.9 (56.9) 18.4 (54.2) p = 0.62
Sex ratio M/F 5/7 42/46 p = 0.77
Immunosuppression 2 (16.7) 15 (17.0) p = 1.00
Invasive infection 2 (16.7) 13 (14.8) p = 1.00
Bacteremia 2 (16.7) 10 (11.4) p = 0.63
Sepsis 2 (16.7) 13 (14.8) p = 1.00
Fever or hypothermia 5 (41.7) 53 (63.9) p = 0.21
 Missingb 0 5  
Inflammatory response 11 (100) 71 (96.0) p = 1.00
 Missingb 1 14  
Bloody stool 2 (16.7) 20 (23.5) p = 0.73
 Missingb 0 3  
Leukocytes in stool 2 (16.7) 36 (43.9) p = 0.11
 Missingb 0 6  
Intravenous hydration required 5 (45.5) 41 (65.1) p = 0.31
 Missingb 1 25  
Length of hospital stay in days 2.5 (5) 4 (6) p = 0.39
Infection with Serovar Typhimurium 7 (58.3) 29 (33.0) p = 0.11
 DT104 phage type 5 (41.6) 4 (4.5) p = 0.001
Infection with S. enterica harboring at least 1 resistance 12 (100) 67 (76.1) p = 0.07
Infection with S. enterica harboring penta – resistance (ACSSuT)d 6 (50) 3 (3.4) p < 0.001
  1. aData are presented as median (interquartile range) for age and for long out of stay in hospital days or number of patients n (%)
  2. bMissing refers to data not available in medical records
  3. cFisher’s exact test and Kruskal-Wallis test were performed as appropriate and p-values <0.05 were considered statistically significant
  4. dACSSuT: Amoxicillin, Chloramphenicol, Streptomycin, Sulphonamides and Tetracyclines
  5. Number italicized were statically significant