Research Article

Mortality Prediction Model of Septic Shock Patients Based on Routinely Recorded Data

Table 2

Median (25°, 75°) values of the features significantly different between groups, dataset II (only the features which are not already shown in Table 1).

ParametersSurvivors (53 pts.)Nonsurvivors (20 pts.) valueFDR

Mean HR (bpm)103.1 (93.6, 110.4)115 (104, 124)<0.01<0.01
Std. HR (bpm)11.8 (9.2, 16.8)15.7 (10, 24)0.0460.058
Median HR (bpm)102 (90.1, 111)112.2 (102.5, 124.5)<0.010.01
Mean RR (breaths/min)22.8 (19, 25.6)24.9 (23.3, 27.2)0.0250.036
Median RR (breaths/min)24 (19, 26)25.5 (24, 30)0.0140.025
Max (°C)38.3 (37.6, 38.8)38.9 (37.9, 39.5)0.0490.062
Kurtosis 2.5 (1.9, 3.2)2.1 (1.6, 2.2)0.0350.047
Max SBP (mmHg)144 (128, 157)129.5 (116, 150.5)0.0460.06
Min MAP (mmHg)51 (44.2, 56.2)39 (17, 52.5)0.0180.027
Mean lactate (mmol/L)3.2 (1.7, 5.1)6.7 (3.8, 12.7)<0.01<0.01
Min lactate (mmol/L)1.8 (1.4, 2.5)5.15 (2.5, 7.8)<0.01<0.01
Max lactate (mmol/L)4.8 (2.45, 7.37)8 (5.3, 16.9)0.0140.024
Median lactate (mmol/L)3 (1.7, 5)6.8 (3.8, 11.9)<0.01<0.01
Mean CVP (mmHg)14.3 (12.1, 18.5)17.3 (16.3, 19.9)0.0120.023
Min CVP (mmHg)8 (4, 11)11 (9, 15)<0.010.011
Median CVP (mmHg)15 (11.7, 17)17 (16, 19)<0.010.016
Min pH (units)7.25 (7.17, 7.35)7.15 (7.08, 7.21)<0.01<0.01
Skewness pH−0.01 (−0.5, 0.4)−0.61 (−0.91, −0.12)0.0280.039
Slope pH (units/h)0 (−0.001, 0.004)−0.001 (−0.004, 0)<0.010.014
Std. SpO2 (%)2.7 (1.7, 4.4)5.5 (2.1, 11)0.0280.039
Median SpO2 (%)97 (96, 99)95.75 (94.5, 97.5)0.0170.026

HR = heart rate. RR = respiratory rate. = temperature. SBP = systolic blood pressure. MAP = mean arterial pressure. CVP = central venous pressure. Std. = standard deviation.