Table 2 Characteristics of delirious patients (n = 162)

Duration of delirium (days) median (P25–75)

3 (1–5)

Frequency of delirium (n, %)

 1

114 (96.6)

 2

4 (3.4)

Treatment of delirium

 Benzodiazepine

48 (40.7)

 Antipsychotic drugs

40 (34)

 α2 agonist

1 (0.8)

Psychiatrist consultation

18 (15.2)

Impaired vision

16 (13.7)

Impaired hearing

13 (11)

History of chronic alcoholism

20 (17.7)

Smoking status

47 (41.6)

Physical restraint

69 (59)

Lab abnormality

 Acidosis

22 (18.8)

 Hypoalbuminemia

62 (53)

Received blood or blood product transfusion

62 (55.8)