Table 5 Roc curve results of mNUTRIC score to predicting outcomes Abbreviations; LOS: Length of stay, MV: Mechanical ventilation, CI: Confidence interval, SN: Sensitivity; SP: Specificity; LR+: Positive Likelihood Ratio; LR-: Negative Likelihood Ratio; PPV: Positive Predictive value; NPV: Negative Predictive value, *P < 0.05 considered as significant

ICU LOS

(> 6 vs. ≤6 days)

0.624

(0.577–0.669)

< 0.001*

22.27

(17.0-28.4)

95.56

(92.0-97.8)

83.0

(71.8–90.4)

55.7

(53.9–57.6)

5.01

(2.61–9.64)

0.81

(0.75–0.88)

0.178

> 4

Hospital LOS

(> 10 vs. ≤10 days)

0.612

(0.565–0.658)

< 0.001*

60.73

(53.9–67.2)

55.75

(49.0-62.3)

57.0

(52.5–61.3)

59.5

(54.6–64.3)

1.37

(1.15–1.64)

0.70

(0.58–0.86)

0.164

> 3

MV

(Yes vs. No)

0.644

(0.598–0.689)

< 0.001*

62.45

(55.8–68.7)

58.33

(51.5–65.0)

61.4

(56.9–65.7)

59.4

(54.5–64.1)

1.50

(1.24–1.81)

0.64

(0.53–0.79)

0.207

> 3

MV duration

(≥ 6 vs. <6 days)

0.710

(0.666–0.752)

< 0.001*

73.23

(64.6–80.7)

55.97

(50.3–61.5)

39.9

(36.0-43.8)

84.0

(79.5–87.7)

1.66

(1.41–1.96)

0.48

(0.35–0.65)

0.292

> 3

Vasopressor

(Yes vs. No)

0.807

(0.767–0.843)

< 0.001*

86.73

(78.4–92.7)

57.35

(52.0-62.6)

36.5

(33.2–39.9)

93.9

(90.2–96.2)

2.03

(1.76–2.35)

0.23

(0.14–0.39)

0.440

> 3

Duration of vasopressor

(≥ 3 vs. <3 days)

0.726

(0.680–0.769)

< 0.001*

81.36

(69.1–90.3)

57.35

(52.0-62.6)

25.3

(22.2–28.7)

94.5

(91.0-96.7)

1.91

(1.61–2.27)

0.33

(0.19–0.56)

0.387

> 3

Mortality

(Yes vs. No)

0.973

(0.954–0.986)

< 0.001*

92.11

(78.6–98.3)

94.10

(91.4–96.2)

59.2

(49.3–68.4)

99.2

(97.7–99.7)

15.62

(10.4–23.2)

0.084

(0.028–0.25)

0.862

> 4