Table 2 Multivariable logistic regression analysis of the association between GNRI and dichotomous outcomes

Mortality within 30 days post-extubation

 Major risk

1.89(1.09 ∼ 3.27)

0.022

2.82(1.43 ∼ 5.54)

0.003

2.76(1.40 ∼ 5.46)

0.003

 Moderate risk

1.12(0.66 ∼ 1.92)

0.666

1.51(0.84 ∼ 2.73)

0.167

1.53(0.84 ∼ 2.77)

0.161

 Low risk

1.35(0.76 ∼ 2.39)

0.304

1.67(0.92 ∼ 3.04)

0.092

1.57(0.86 ∼ 2.88)

0.140

 No risk

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

Pneumonia within 30 days post-extubation

 Major risk

2.99(1.53 ∼ 5.82)

0.001

3.04(1.40 ∼ 6.59)

0.005

3.07(1.42 ∼ 6.68)

0.005

 Moderate risk

2.26(1.19 ∼ 4.29)

0.012

2.31(1.17 ∼ 4.57)

0.016

2.31(1.16 ∼ 4.58)

0.017

 Low risk

1.87(0.93 ∼ 3.78)

0.079

1.95(0.95 ∼ 3.99)

0.068

1.88(0.92 ∼ 3.86)

0.085

 No risk

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

Reintubation within 72 h

 Major risk

2.33(1.22 ∼ 4.44)

0.010

2.38(1.05 ∼ 5.37)

0.037

2.41(1.06 ∼ 5.49)

0.035

 Moderate risk

1.02(0.53 ∼ 1.97)

0.951

0.99(0.47 ∼ 2.05)

0.969

0.96(0.46 ∼ 2.02)

0.922

 Low risk

0.84(0.39 ∼ 1.78)

0.646

0.80(0.36 ∼ 1.76)

0.573

0.73(0.33 ∼ 1.62)

0.438

 No risk

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

Post-extubation dysphagia

 Major risk

3.16(1.45 ∼ 6.89)

0.004

2.97(1.20 ∼ 7.33)

0.019

2.94(1.19 ∼ 7.31)

0.020

 Moderate risk

2.40(1.13 ∼ 5.09)

0.022

2.35(1.05 ∼ 5.24)

0.037

2.31(1.03 ∼ 5.18)

0.041

 Low risk

1.22(0.50 ∼ 2.97)

0.657

1.24(0.50 ∼ 3.07)

0.637

1.16(0.47 ∼ 2.88)

0.751

 No risk

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)

1.00 (Ref.)