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Table 1 Baseline characteristics, vital signs, and laboratory test results of survivors compared with patients who died

From: A machine learning-based risk stratification tool for in-hospital mortality of intensive care unit patients with heart failure

Variables

Survived (n = 5081)

Died (n = 595)

p

Age, mean (years, SD)

70.2 (12.7)

74.5 (11.8)

 < 0.001

Gender, n (%)

2842 (55.9%)

319 (53.6%)

0.281

BMI, mean (kg/m2, SD)

29.3 (7.5)

28.4 (7.9)

 < 0.001

Heart rate, mean (bpm, SD)

84.0 (16.2)

86.9 (17.3)

 < 0.001

SBP, mean (mmHg, SD)

117.6 (16.2)

115.7 (19.1)

0.002

DBP, mean (mmHg, SD)

58.5 (10.0)

56.8 (10.9)

 < 0.001

Mean bp, mean (mmHg, SD)

76.7 (10.1)

75.6 (9.8)

0.014

Respiratory rate, mean (/min, SD)

19.0 (3.8)

20.3 (4.7)

 < 0.001

Temperature, mean (°C, SD)

36.8 (0.6)

36.7 (0.8)

0.011

SpO2, mean (%, SD)

97.1 (2.0)

96.7 (2.9)

0.039

GCS, mean (SD)

12.1 (3.3)

10.3 (4.0)

 < 0.001

Anion gap, mean (mmHg, SD)

13.8 (3.2)

15.9 (3.9)

 < 0.001

HCO3, mean (mmol/L, SD)

24.8 (4.6)

23.6 (5.4)

 < 0.001

Creatinine, mean (μmol/L, SD)

1.5 (1.4)

1.9 (1.4)

 < 0.001

Chloride, mean (mmg/dL, SD)

104.5 (5.7)

103.7 (6.1)

0.004

Glucose, mean (mg/dL, SD)

144.1 (48.8)

160.7 (64.2)

 < 0.001

Hematocrit, mean (%, SD)

31.8 (5.3)

31.9 (5.3)

0.358

Hemoglobin, mean (g/dL, SD)

10.7 (1.8)

10.6 (1.8)

0.961

Platelets, mean (× 109/L, SD)

213.6 (96.7)

208.2 (104.8)

0.174

PTT, mean (s, SD)

41.4 (21.3)

46.6 (26.1)

 < 0.001

INR, mean (SD)

1.5 (0.8)

1.7 (1.0)

 < 0.001

PT, mean (s, SD)

16.0 (6.1)

17.2 (7.4)

 < 0.001

Sodium, mean (mmol/L, SD)

138.2 (4.0)

138.6 (4.9)

0.002

BUN, mean (mmol/L, SD)

29.8 (21.9)

42.0 (27.0)

 < 0.001

WBC, mean (× 109/L, SD)

12.0 (7.0)

14.3 (20.0)

 < 0.001

MCHC, mean (× 10 g/L, SD)

33.8 (1.5)

33.3 (1.5)

 < 0.001

RBC, mean (× 109/L, SD)

3.6 (0.6)

3.6 (0.7)

0.246

RDW, mean (%, SD)

15.1 (1.9)

15.8 (2.2)

 < 0.001

Ph blood, mean (SD)

7.4 (0.1)

7.4 (0.1)

0.239

PO2, mean (mmHg, SD)

156.0 (73.8)

137.9 (74.4)

 < 0.001

PCO2, mean (mmHg, SD)

42.8 (9.7)

42.0 (11.5)

 < 0.001

Urine output, mean (mL, SD)

1963.2 (1160.0)

1442.1 (1126.5)

 < 0.001

Comorbidities

   

Cardiac arrhythmias, n (%)

2958 (58.2)

377 (63.4)

0.016

Hypertension, n (%)

3187 (62.7)

299 (50.3)

 < 0.001

  1. SD standard deviation, BMI body mass index, SBP systolic blood pressure, DBP diastolic blood pressure, SpO2 Oxygen saturation, GCS, Glasgow Coma scale, PTT partial thromboplastin time, INR international normalized ratio, PT prothrombin time, BUN blood urea nitrogen, WBC white blood cell count, MCHC mean corpuscular hemoglobin concentration, RBC red blood cell count, RDW red blood cell distribution width, Ph potential hydrogen, PO2 partial pressure of arterial oxygen, PCO2 partial pressure of arterial carbon dioxide
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Journal of Translational Medicine

ISSN: 1479-5876

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