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Table 4 Independent predictors of delirium in ICU derived from multivariate regression analysis performed on the derivation cohort

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

Risk factor

β coefficient

SE

Wald value

OR

RR (95% CI)

P

Points in weighted scoring mode

History of hypertension

1.474

0.636

5.374

4.367

1.256–15.188

0.02

3

Hypoxaemia

1.219

0.513

5.642

3.382

1.237–9.245

0.018

2

Use of benzodiazepines

1.505

0.605

6.181

4.503

1.375–14.746

0.013

3

Deep sedation

1.206

0.610

3.909

3.339

1.011–11.035

0.048

2

Mechanical ventilation

1.266

0.043

4.338

3.547

1.077–11.679

0.037

2

Sepsis

1.247

0.471

7.020

3.480

1.383–8.745

0.008

2