Table 3 Causes of hospital delirium episodes in parkinsonism.

From: First delirium episode in Parkinson’s disease and parkinsonism: incidence, predictors, and outcomes

Main underlying cause of delirium

Frequency (%) N = 152

Infection

80 (53)

Fracture

16 (11)

Gastrointestinal illness

10 (7)

Neurological illness

7 (5)

Drugs

6 (4)

Elective surgery

5 (3)

Cardiac illness

4 (3)

Respiratory illness

4 (3)

Other

6 (4)

Unclear

14 (9)