Table 3 Multivariable linear regression of the association between GNRI and length of stay in ICU and hospital

GNRI (as a continuous)

 GNRI levels

-0.084 (-0.094∼-0.073)

<0.001

-0.073 (-0.087∼-0.060)

<0.001

-0.197(-0.218∼-0.175)

<0.001

-0.190 (-0.217∼-0.163)

<0.001

GNRI (as a categorical)

 Major risk

3.40(2.95 ∼ 3.85)

<0.001

3.37(2.78 ∼ 3.96)

<0.001

8.20(7.27 ∼ 9.12)

<0.001

8.48(7.28 ∼ 9.68)

<0.001

 Moderate risk

1.04(0.60 ∼ 1.47)

0.430

1.00(0.52 ∼ 1.49)

0.355

4.38(3.49 ∼ 5.28)

<0.001

4.61(3.62 ∼ 5.61)

<0.001

 Low risk

0.33(-0.15 ∼ 0.82)

0.176

0.26(-0.24 ∼ 0.77)

0.308

3.01(2.01 ∼ 4.00)

<0.001

2.99(1.95 ∼ 4.02)

<0.001

 No risk

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)