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Table 3 Independent predictors of delirium in ICU derived from univariate regression analysis performed on the derivation cohort (Measurement data)

From: Development and validation of a predictive score for ICU delirium in critically ill patients

Risk factor

Delirium group (n = 46)

No delirium group

(n = 177)

t

P

Age (yr, ̅x ± SD)

62.80 ± 17.31

57.63 ± 13.88

−2.134

0.034

WBC (109/L)

14.89 ± 8.11

11.38 ± 4.81

2.807

0.005

PLT (109/L)

116.41 ± 64.19

149.03 ± 90.31

2.301

0.022

CRP (mmol/L)

173.97 ± 167.28

160.31 ± 149.50

0.504

0.615

ALB (g/L)

30.18 ± 6.58

30.02 ± 5.20

−0.177

0.860

PCT (ng/L)

16.28 ± 31.52

14.20 ± 25.52

−0.470

0.639

Na+ (mmol/L)

139.24 ± 5.93

138.70 ± 6.09

−0.537

0.592

K+ (mmol/L)

3.93 ± 0.80

3.86 ± 0.51

−0.789

0.431

Glu (mmol/L)

9.33 ± 3.01

9.29 ± 2.67

−0.103

0.918

Lac (mmol/L)

2.76 ± 3.05

2.21 ± 2.15

−1.428

0.155

BMI (kg/m2)

22.15 ± 3.28

22.69 ± 3.19

1.015

0.311

APACHEII

15.04 ± 5.99

14.15 ± 7.15

−0.777

0.438

GCS

11.51 ± 3.86

9.63 ± 3.90

2.941

0.004