Table 3 Univariate Cox regression for the prediction of 28-day mortality in the derivation and validation cohorts

1175

84

166.4

1

< 0.001

0.869

5.4 [4.2–6.9]

1166

84

42.4

1

< 0.001

0.713

2.1 [1.7–2.6]

746

59

25.3

1

< 0.001

0.678

2.2 [1.6–2.9]

1170

83

19.7

1

< 0.001

0.649

2.5 [1.6–3.8]

965

84

12.2

1

< 0.001

0.640

1.9 [1.3–2.8]

1175

84

83.5

1

< 0.001

0.827

2.6 [2.2–3.1]

1175

84

73.4

1

< 0.001

0.836

3.2 [2.5–4.0]

1058

81

53.0

1

< 0.001

0.734

3.1 [2.3–4.2]

1175

84

75.8

1

< 0.001

0.838

2.6 [2.1–3.2]

896

45

84.2

1

< 0.001

0.881

3.8 [2.9–5.0]

884

45

32.4

1

< 0.001

0.770

2.0 [1.6–2.5]

780

42

19.4

1

< 0.001

0.703

3.1 [1.7–5.6]