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Table 3 Multivariable binary logistic regression of risk factors for delirium

From: Incidence, predictors and health outcomes of delirium in very old hospitalized patients: a prospective cohort study

Variables

B

SE

Adjusted OR

(95% CI)

P- value

Age (90–99 y)

0.767

0.408

2.15 (0.968–4.793)

0.060

Single/divorced /windowed

0.167

0.391

1.18 (0.549–2.543)

0.670

High school or above

−0.505

0.328

0.60 (0.317–1.147)

0.123

Alcohol use

0.017

0.375

1.01 (0.488–2.119)

0.964

Polypharmacy (number of medications ≥5)

1.048

0.325

2.85 (1.509–5.389)

0.001

Emergency admission

0.758

0.375

2.13 (1.023–4.452)

0.043

Sleep deprivation

1.357

0.418

3.89 (1.712–8.818)

0.001

Vision impairment

0.589

0.508

1.80 (0.665–4.882)

0.247

Hearing impairment

0.289

0.458

1.34 (0.544–3.276)

0.528

Pain

0.129

0.340

1.14 (0.584–2.214)

0.705

Constipation

0.948

0.339

2.58 (1.327–5.015)

0.005

Cognitive function impairment

2.858

0.432

17.42 (7.469–40.640)

< 0.001

Malnutrition

0.146

0.340

1.16 (0.594–2.255)

0.667

Depression

2.230

0.360

9.30 (4.589–18.844)

< 0.001

ADL impairment

0.745

0.575

2.11 (0.682–6.505)

0.195

CCI: Mild (≤2)

  

Reference

0.019

CCI: Moderate (3–4)

0.494

0.386

1.64 (0.770–3.489)

0.200

CCI: Severe (≥5)

1.437

0.535

4.21 (1.476–12.006)

0.007

Infection

1.204

0.344

3.33 (1.697–6.542)

< 0.001

Constant

−6.195

0.664

 

< 0.001

  1. Abbreviations: ADL Activity of Daily Life, CCI Charlson Comorbidity Index, SE Standard Error, OR odds ratio, 95% CI 95% confidence interval