Table 1 Summary statistics of selected features in each group
Features (mean ± sd, missing ratio) | Whole group (n = 4009) | Survivors (n = 3776) | Nonsurvivors (n = 233) | P value | |||
|---|---|---|---|---|---|---|---|
Age (years) | 58.92 ± 16.83 | 0.00% | 58.85 ± 16.87 | 0.00% | 60.03 ± 16.27 | 0.00% | 2.88E−01 |
T (℃) | 36.97 ± 0.58 | 0.00% | 36.97 ± 0.57 | 0.00% | 37.04 ± 0.78 | 0.00% | 1.40E−01 |
APACHE2 | 15.3 ± 7.55 | 12.45% | 14.5 ± 6.65 | 12.42% | 28.31 ± 9.26 | 12.88% | 1.00E−53 |
SOFA | 6.64 ± 3.77 | 10.03% | 6.3 ± 3.47 | 9.83% | 12.45 ± 3.82 | 13.30% | 1.00E−58 |
RR (insp/min) | 23.07 ± 24.37 | 0.00% | 21.16 ± 20.99 | 0.00% | 54 ± 45.44 | 0.00% | 6.68E−23 |
FiO2 (%) | 39.11 ± 8.54 | 0.00% | 38.43 ± 7.46 | 0.00% | 50.12 ± 15.02 | 0.00% | 1.38E−25 |
SpO2 (%) | 98.77 ± 1.95 | 0.00% | 98.92 ± 1.4 | 0.00% | 96.46 ± 5.28 | 0.00% | 1.70E−11 |
Pmean (cmH2O) | 8.86 ± 2.05 | 0.00% | 8.68 ± 1.8 | 0.00% | 11.79 ± 3.33 | 0.00% | 2.30E−33 |
Ppeak (cmH2O) | 17.97 ± 3.97 | 0.00% | 17.71 ± 3.72 | 0.00% | 22.08 ± 5.39 | 0.00% | 5.00E−27 |
PEEP (cmH2O) | 7.07 ± 4.62 | 0.00% | 6.89 ± 4.42 | 0.00% | 10.08 ± 6.59 | 0.00% | 2.01E−07 |
VT (mL/B) | 422.8 ± 72.86 | 0.00% | 422.94 ± 72.39 | 0.00% | 420.6 ± 80.23 | 0.00% | 6.65E−01 |
PO2 (mmHg) | 136.08 ± 38.96 | 0.00% | 137.23 ± 37.93 | 0.00% | 117.59 ± 49.4 | 0.00% | 8.60E−09 |
PCO2 (mmHg) | 38.79 ± 5.2 | 0.00% | 38.6 ± 4.84 | 0.00% | 41.94 ± 8.68 | 0.00% | 1.85E−08 |
HR (BPM) | 81.84 ± 24.51 | 0.00% | 82.73 ± 22.9 | 0.00% | 67.38 ± 40.23 | 0.00% | 2.47E−08 |
MAP (mmHg) | 89.63 ± 11.32 | 0.00% | 89.76 ± 11.26 | 0.00% | 87.53 ± 12.15 | 0.00% | 6.80E−3 |
CVP (mmHg) | 8.43 ± 2.47 | 43.18% | 8.27 ± 2.36 | 45.39% | 9.95 ± 2.93 | 7.30% | 1.78E−14 |
Pv-aCO2 (mmHg) | 5.67 ± 2.44 | 45.02% | 5.7 ± 2.33 | 47.30% | 5.34 ± 3.22 | 8.15% | 1.12E−01 |
Lac (mmol/L) | 2.15 ± 1.9 | 0.00% | 2.01 ± 1.39 | 0.00% | 4.32 ± 5.12 | 0.00% | 5.89E−11 |
P(v-a)CO2/C(a-v)O2 ratio | 1.51 ± 7.47 | 47.09% | 1.64 ± 4.29 | 49.28% | 0.24 ± 20.09 | 11.59% | 3.19E−01 |
PI | 2.53 ± 1.46 | 0.00% | 2.6 ± 1.45 | 0.00% | 1.4 ± 1.15 | 0.00% | 2.58E−38 |
Hb (g/dL) | 108.21 ± 19.31 | 0.00% | 108.94 ± 19.04 | 0.00% | 96.47 ± 19.86 | 0.00% | 5.17E−18 |
Balance (mL) | − 381.23 ± 1869.41 | 0.00% | − 366.59 ± 1665.24 | 0.00% | − 618.53 ± 3897.8 | 0.00% | 3.28E−01 |