Table 5 Multivariate analyses of factors associated with ICU admission in in all patients and the elderly versus non-elderly

Center

n/a

n/a

n/a

n/a

-

0.049

 Siriraj Hospital

Reference

-

 Banphaeo General Hospital

0.00 (0.0-0.0)

0.999

 Ratchaburi Hospital

10.82 (1.6-72.6)

0.014

 Buddhachinaraj Hospital

-^a

-^a

 Prachuap Kiri Khan Hospital

-^a

-^a

Age

0.98 (1.0-1.0)

0.014

n/a

n/a

0.90 (0.8-1.0)

0.006

Sex

n/a

n/a

n/a

n/a

2.43 (0.9-6.7)

0.087

Do-not-resuscitate status

3.14 (1.3-7.3)

0.008

n/a

n/a

10.52 (3.1-35.8)

<0.001

Systolic blood pressure

1.01 (1.0-1.0)

0.041

n/a

n/a

1.03 (1.0-1.0)

0.002

Diastolic blood pressure

n/a

n/a

n/a

n/a

n/a

n/a

Pulse rate

1.02 (1.0-1.0)

0.050

n/a

n/a

1.02 (1.0-1.0)

0.057

Body temperature

1.39 (1.0-1.9)

0.044

n/a

n/a

n/a

n/a

Oxygen saturation

0.96 (0.9-1.0)

0.001

0.92 (0.9-1.0)

<0.001

0.95 (0.9-1.0)

0.021

Hemoglobin

n/a

n/a

n/a

n/a

0.73 (0.6-0.9)

0.012

White blood cell count

1.00 (1.0-1.0)

0.098

n/a

n/a

n/a

n/a

Platelet

n/a

n/a

1.00 (1.0-1.0)

0.022

n/a

n/a

Lactate

1.48 (1.2-1.9)

0.002

1.51 (1.0-2.3)

0.064

1.58 (1.0-2.4)

0.034

D-dimer

n/a

n/a

n/a

n/a

1.0 (1.0-1.0)

0.023

C-reactive protein

1.0 (1.0-1.0)

0.032

n/a

n/a

1.0 (1.0-1.0)

0.013

High-flow nasal cannula

4.09 (2.2-7.7)

<0.001

6.58 (2.8-15.5)

<0.001

n/a

n/a