Table 3.

Derivation cohort: univariate analysis of patient blood test results at admission

Variables	Delirium	No delirium	p Value
Haematocrit (%)	39.31 (7.6)	37.42 (6.5)	0.058
Urea (mg/dl)	62.3 (31.6)	60.3 (40.7)	NS
Creatine (mg/dl)	1.14 (0.5)	1.25 (0.9)	NS
Sodium (mEq/l)	138.5 (5.6)	173.9 (5.5)	NS
Potassium (mEq/l)	5.2 (6.9)	4.8 (0.7)	NS
Glucose (mg/dl)	140.1 (66.3)	140.8 (78.8)	NS
White blood cells (10e3/μl)	12.1 (12.2)	10.1 (4.7)	NS
Neutrophils (10e3/μl)	9.8 (8.5)	10.8 (14.8)	NS

Mean (SD).

NS, not significant.