Table 2 Full linear regression model results for cumulative mortality (%) index: x is PdiTw

Intercept

−26

(−40, −11)

0.001

1/x

403

(201, 605)

0.0003

1/x²

−779

(−1614, 55)

0.07

1/x³

423

(−579, 1425)

0.40

Sepsis

 Yes

−3.29

(−8.34, 1.77)

0.20

 No

Reference

Age

0.06

(−0.03, 0.15)

0.21

Steroids

 Yes

0.12

(−2.59, 2.83)

0.93

 No

Reference

Lung compliance

0.04

(−0.11, 0.19)

0.57

Airway resistance

0.18

(−0.01, 0.36)

0.06

Severity of Organ Failure Assessment (SOFA)

0.004

(−0.57, 0.58)

0.99

Charlson Comorbidity Score

0.45

(−0.29, 1.18)

0.23

Gender

 Female

−0.44

(−3.13, 2.25)

0.74

 Male

Reference