Research Article

Machine Learning Algorithms Identify Pathogen-Specific Biomarkers of Clinical and Metabolomic Characteristics in Septic Patients with Bacterial Infections

Table 1

Characteristics of the patients in our study.

Clinical variableControlGram-positiveGram-negative
No.%No.%No.%

2967673333
Age (years)
 <50413.792334.33824.24
 50-60827.591725.37824.24
 60-70724.141217.91824.24
 70-80413.79710.45412.12
 ≥80620.69811.94515.15
Sex
 Male1241.384161.191751.52
 Female1758.622638.811648.48
Race
 Black2172.414567.162163.64
 White724.141725.371133.33
 Other13.4557.4613.03
Pathogen
S. aureusN/A27N/A
S. pneumoniaeN/A28N/A
E. coliN/AN/A17
APACHE II
Temperature (°C)
MAP (mmHg)
Heart rate
Respiratory rate
Serum sodium (mM)
Serum potassium (mM)
Serum creatinine (mg/dl)
Blood lactate (mg/dl)
Hematocrit
White cell count
Platelet count

Data are presented as . MAP: mean arterial pressure; N/A: not available.