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Table 5 Multivariate logistic regression of risk factors for having a prevalent delirium after acute admission. Backward selection procedure of all variables with a p-value <0.20 in the univariate regression analysis

From: Risk factors for delirium in acutely admitted elderly patients: a prospective cohort study

Variable Adjusted Hazard ratio (95% CI) p-value
Cognitive impaired 9.48 (2.27–39.54) <0.01
Katz ADL   
   0–4 1.00  
   6–5 8.14 (1.08–61.31) 0.04
   ≥ 7 14.13 (2.26–88.24) <0.01
Urea (mmol/L) 1.10 (1.02–1.18) <0.01
Leucocytes (* 109/L) 0.87 (0.79–0.97) 0.01