Table 4 Correlative analysis of hypoxia, in-hospital mortality and CT-based severity score

CT 1

n = 0

n = 11

n = 1

n = 20

r = − 0.383*

r = 0.204

r = − 0.105

r = 0.107

p = 0.033*

p = 0.187

p = 0.220

p = 0.146

CT 2

n = 3

n = 10

n = 5

n = 45

r = 0.133

r = − 0.025

r = − 0.054

r = 0.184*

p = 0.461

p = 0.870

p = 0.530

p = 0.012*

CT 3

n = 1

n = 7

n = 6

n = 49

r = − 0.097

r = − 0.099

r = − 0.077

r = − 0.030

p = 0.589

p = 0.520

p = 0.369

p = 0.683

CT 4

n = 3

n = 4

n = 9

n = 24

r = 0.486*

r = − 0.133

r = 0.261*

r = − 0.288*

p = 0.007*

p = 0.389

p = 0.002*

p = 0.000*

Hypoxia

n = 7

-

n = 19

-

r = − 0.354*

r = − 0.248*

p = 0.022*

p = 0.001*