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Table 1 Baseline characteristics of study population from MIMIC-III and ICU-CH

From: Dynamic Bayesian network for predicting physiological changes, organ dysfunctions and mortality risk in critical trauma patients

Variable

Training set

Validation set

N

2915

1909

Sex, male (%)

1960 (67.2)

995 (52.1)

Death during admission, yes (%)

286 (9.8)

199 (10.4)

Death time during admission

  

 < 24 h (%)

58 (20.3)

43 (21.6)

 24–48 h (%)

42 (14.7)

35 (17.6)

 ≥ 48 h (%)

186 (65.0)

121 (60.8)

Length of ICU stay, hour

  

 Median (Q1,Q3)

51.70 (28.95, 121.14)

46.08 (25.87, 98.22)

 < 24 h (%)

485 (16.6)

366 (19.2)

 24–48 h (%)

893 (30.6)

628 (32.9)

 ≥ 48 h (%)

1537 (52.7)

915 (47.9)

Primary diagnosis

  

 Fracture of skull (%)

571 (19.6)

353 (18.5)

 Fracture of neck and trunk (%)

574 (19.7)

442 (23.2)

 Fracture of limb (%)

310 (10.6)

259 (13.6)

 Intracranial injury (%)

570 (19.6)

340 (17.8)

 Internal injury of trunk (%)

460 (15.8)

355 (18.6)

 Other (%)a

428 (14.7)

160 (8.4)

Age, mean ± SD

51.06 ± 22.38

54.54 ± 17.38

SAP II score, mean ± SD

35.15 ± 12.21

34.17 ± 11.74

APACHE II score, mean ± SD

8.63 ± 5.00

6.85 ± 4.48

GCS

10.90 ± 4.26

12.17 ± 2.85

  1. aOther included dislocation, sprains and strains of joints and adjacent muscles, open wound of trunk, open wound of limb, etc.