Table 2 Statistical description of the training set and validation set in the study
From: Selection strategy for sedation depth in critically ill patients on mechanical ventilation
Features (mean ± SD) | Training set (n = 4747) | Validation set (n = 1188) |
|---|---|---|
Age | 63.83 ± 16.37 | 63.22 ± 16.29 |
SAPS II | 40.21 ± 15.04 | 39.56 ± 14.85 |
SOFA scores | 5.49 ± 3.53 | 5.36 ± 3.48 |
White blood cell (WBC) | 12.52 ± 8.98 | 12.44 ± 6.27 |
Hemoglobin (Hb) | 10.67 ± 1.90 | 10.74 ± 1.93 |
Hematocrit | 31.91 ± 5.51 | 32.07 ± 5.48 |
Platelet | 210.77 ± 109.94 | 210.00 ± 108.69 |
Urea nitrogen (BUN) | 25.31 ± 20.39 | 24.95 ± 20.04 |
pH | 7.37 ± 0.07 | 7.37 ± 0.07 |
pO2 | 189.14 ± 85.98 | 191.54 ± 89.92 |
pCO2 | 41.91 ± 8.66 | 41.53 ± 8.06 |
Bicarbonate (HCO3−) | 23.62 ± 4.21 | 23.57 ± 4.01 |
Lactate (Lac) | 2.23 ± 1.45 | 2.26 ± 1.52 |
Potassium (K) | 4.22 ± 0.54 | 4.22 ± 0.57 |
Sodium (Na) | 138.17 ± 4.04 | 138.17 ± 4.16 |
Chlorine (Cl) | 105.33 ± 5.29 | 105.28 ± 5.37 |
Total calcium (TotalCa) | 8.24 ± 0.74 | 8.23 ± 0.73 |
Partial thromboplastin time (PTT) | 35.81 ± 15.29 | 36.14 ± 15.82 |
Fluid balance | 4580.69 ± 9379.25 | 4687.70 ± 4268.08 |
Positive expiratory end pressure (PEEP) | 5.99 ± 2.01 | 5.87 ± 1.90 |
Oxygen concentration in the inhalation gas (FiO2) | 56.06 ± 13.29 | 55.37 ± 12.74 |
Tidal volume (VT) | 520.06 ± 178.15 | 517.18 ± 159.60 |
Peak airway pressure (Ppeak) | 20.28 ± 5.62 | 20.36 ± 5.50 |
Mean airway pressure (Pmean) | 9.45 ± 2.85 | 9.40 ± 2.77 |
Platform pressure (Pplat) | 18.29 ± 4.18 | 18.23 ± 3.97 |
Heart rate (HR) | 86.06 ± 15.41 | 86.05 ± 15.63 |
Mean arterial pressure (MAP) | 78.35 ± 11.68 | 78.42 ± 11.28 |
Respiratory rate (RR) | 18.76 ± 3.71 | 18.62 ± 3.85 |
Temperature | 36.83 ± 0.68 | 36.84 ± 0.67 |
Pulse oxygen saturation (SpO2%) | 97.55 ± 2.26 | 97.61 ± 2.19 |
Richmond-ASS scores | − 1.59 ± 1.49 | − 1.59 ± 1.55 |
Dexmedetomidine | 0.12 ± 0.77 | 0.12 ± 0.64 |
Fentanyl | 3.52 ± 11.43 | 3.12 ± 9.97 |
Midazolam | 65.45 ± 296.75 | 55.62 ± 208.40 |
Morphine | 15.23 ± 84.53 | 13.07 ± 38.04 |
Propofol | 3929.18 ± 8581.78 | 4066.48 ± 9464.44 |