Table 2 Comparison of characteristics between survivors and non-survivors in the development cohort.

From: Prediction of mortality risk in patients with severe community-acquired pneumonia in the intensive care unit using machine learning

Characteristics

Non-survive group

(n = 97)

Survive group

(n = 358)

P-value

Sex

  

0.979

Male

63 (64.95%)

232 (64.80%)

 

Female

34 (35.05%)

126 (35.20%)

 

Age(year)

62.12 ± 18.94

61.88 ± 17.47

0.906

Diabetes

  

0.424

No

82 (84.54%)

290 (81.01%)

 

Yes

15 (15.46%)

68 (18.99%)

 

Hypertension

  

0.818

No

63 (64.95%)

228 (63.69%)

 

Yes

34 (35.05%)

130 (36.31%)

 

Tumors

  

0.798

No

94 (96.91%)

345 (96.37%)

 

Yes

3 (3.09%)

13 (3.63%)

 

APACHE II Score

29.11 ± 8.67

19.86 ± 7.10

< 0.001

SOFA Score

10.61 ± 4.17

7.76 ± 3.72

< 0.001

CRP (mg/L)

118.92 ± 72.89

101.02 ± 69.18

0.026

PCT (ng/ml)

17.38 ± 35.30

8.53 ± 20.45

0.002

Lymphocytes (× 109/L)

1.57 ± 1.49

0.93 ± 0.62

< 0.001

Neutrophils (× 109/L)

13.52 ± 8.25

11.92 ± 6.76

0.048

Fibrinogen (g/L)

4.65 ± 2.09

4.69 ± 1.94

0.833

D-dimer (mg/L)

11.91 ± 15.76

7.03 ± 6.66

< 0.001

Urea nitrogen (mmol/L)

17.99 ± 13.00

15.17 ± 10.83

0.030

Total bilirubin (µmol/L)

39.39 ± 63.17

26.56 ± 40.21

0.015

Albumin (g/L)

33.12 ± 6.67

33.68 ± 6.04

0.429

Blood glucose (mmol/L)

13.82 ± 8.22

11.04 ± 3.89

< 0.001

Lactate (mmol/L)

6.92 ± 6.61

4.29 ± 13.42

< 0.001

PaCO2 (mmHg)

51.85 ± 22.12

43.70 ± 12.84

< 0.001

PaO2/FiO2

218.54 ± 103.84

254.93 ± 93.01

< 0.001

ICU MV time (day)

8.33 ± 11.47

7.26 ± 10.10

0.369

Shock

  

< 0.001

No

9 (9.28%)

169 (47.21%)

 

Yes

88 (90.72%)

189 (52.79%)

 

Glucocorticoids

  

1.000

No

42 (43.30%)

155 (43.30%)

 

Yes

55 (56.70%)

203 (56.70%)

 
  1. Abbreviations: APACHE, Acute Physiology and Chronic Health Evaluation; SOFA, Sequential Organ Failure Assessment; CRP, C-reactive protein; PCT, procalcitonin; PaCO2, arterial carbon dioxide partial pressure; PaO2, arterial oxygen partial pressure; FiO2, inhaled oxygen concentration; ICU, Intensive Care Unit; MV, mechanical ventilation.