Table 3: Linear regression to evaluate the association of

clinical variables with the tomographic scale. N = 151.

Patients

with COVID-19

Method: Enter

Method: Stepwise

β

p

β

p

Age

0.01

0.651

Duration of the disease

0.17

0.027

0.17

0.027

Oxygen saturation

percentage

-0.18

< 0.001

-0.18

< 0.001

Severity

(intubation/death)

2.88

0.001

2.93

0.001

Dependent variable: scale score. The covariates included this analysis were the qualitative and quantitative variables with biological plausibility that explain severity.