Table 6 Cox regression analysis for estimation of the survival rate on the 28th day according to the ability to ambulate

Inability to ambulate

2.352 (1.083–5.108)

0.031

N/A

N/A

Respiratory infection

2.274 (1.027–5.033)

0.043

2.077 (0.935–4.613)

0.022

C-reactive protein

1.057 (1.029–1.086)

<0.001

1.061 (1.030–1.093)

<0.001

Albumin

0.468 (0.257–0.851)

0.013

0.542 (0.281–1.042)

0.023

CRP^a) to albumin ratio

1.219 (1.119–1.328)

<0.001

1.212 (1.114–1.319)

<0.001