Table 1.
Patient baseline characteristics.
| Variables | Training set (n=322) | Test set (n=245) | P value | |
| Age (years), mean (SD) | 50.89 (17.37) | 55.62 (15.9) | <.001 | |
| Sex, n (%) | .21 | |||
|
|
Male | 155 (48.1) | 131 (53.5) |
|
|
|
Female | 167 (51.9) | 114 (46.5) |
|
| Critical illness, n (%) | .96 | |||
|
|
Yes | 56 (17.4) | 43 (17.6) |
|
|
|
No | 266 (82.6) | 202 (82.4) |
|
| Vital signs, mean (SD) | ||||
|
|
Systolic pressure | 120.9 (20.1) | 122.43 (21.45) | .39 |
|
|
Diastolic pressure | 76.07 (11.83) | 77.82 (13.09) | .10 |
|
|
Respiratory rate | 18.89 (2.4) | 19.74 (1.86) | <.001 |
|
|
Temperature | 36.5 (0.4) | 36.4 (0.43) | <.001 |
|
|
Heart rate | 81.39 (13.87) | 79.58 (14.29) | .13 |
| Blood routine test, mean (SD) | ||||
|
|
WBCa | 11.98 (39.69) | 9.39 (4.18) | .31 |
|
|
RBCb | 4.63 (0.79) | 4.62 (4.18) | .89 |
|
|
Hemoglobin | 137.57 (26.6) | 137.74 (24.52) | .94 |
|
|
Hematocrit | 42.88 (8.74) | 37.87 (13.71) | <.001 |
|
|
Heart rate | 81.39 (13.87) | 79.58 (14.29) | .13 |
| Liver function, mean (SD) | ||||
|
|
TBiLc | 16.89 (11.65) | 17.7 (15.98) | .49 |
|
|
DBiLd | 6.05 (5.73) | 6.09 (8.27) | .94 |
|
|
IBiLe | 10.4 (5.64) | 12.23 (12.14) | .02 |
|
|
ALTf | 106.23 (380.7) | 142.23 (689.61) | .43 |
|
|
ASTg | 152.04 (713.41) | 166.09 (824.13) | .83 |
| Kidney function, mean (SD) | ||||
|
|
Urea | 7.03 (3.17) | 7.69 (4.5) | .08 |
|
|
Creatinine | 91.27 (54.42) | 100.15 (94.5) | .16 |
| Coagulation function, mean (SD) | ||||
|
|
PTh | 13.14 (3.52) | 12.88 (4.86) | .48 |
|
|
TTi | 13.82 (2.57) | 15.21 (16.76) | .17 |
|
|
PPTj | 31.65 (6.24) | 33.88 (15.91) | .03 |
|
|
Fibrinogen | 2.77 (0.76) | 3.01 (0.83) | <.001 |
|
|
INRk | 1.08 (0.34) | 1.06 (0.3) | .39 |
| Serum electrolytes, mean (SD) | ||||
|
|
Serum potassium | 4.94 (17.39) | 4.97 (14.5) | .99 |
|
|
Serum sodium | 138.24 (11.62) | 136.21 (16.4) | .09 |
| Other blood biochemistry and enzymatic parameters, mean (SD) | ||||
|
|
CO2CPl | 22.6 (9.81) | 23.59 (13.71) | .15 |
|
|
CKm | 394 (1981.36) | 49.29 (527.65) | .16 |
|
|
CK-MBn | 38.22 (138.74) | 35.89 (118.64) | .84 |
|
|
LDHo | 298.95 (570.85) | 342.67 (997.28) | .52 |
aWBC: white blood cell.
bRBC: red blood cell.
cTBiL: total bilirubin.
dDBiL: direct bilirubin.
eIBiL: indirect bilirubin.
fALT: alanine transaminase.
gAST: aspartate aminotransferase.
hPT: prothrombin time.
iTT: thrombin time.
jPPT: partial thromboplastin time.
kINR: international normalized ratio.
lCO2CP: carbon dioxide combining power.
mCK: creatine kinase.
nCK-MB: creatine kinase-MB.
oLDH: lactate dehydrogenase.