Table 2: Outcomes of patients with and without delirium at or during the admission.

OutcomeDelirium statusMean (SD) (%) (df) value

Length of stay in hospital; mean (SD)Delirium at admission ( )15.9 days (14.3)−3.9 0.005*
No delirium ( ) 9.7 days (9.7)
Incident delirium ( )21.7 days (17.9)−8.0 0.005*
No delirium ( )8.66 days (8.0)

Number of those who fell in hospitalDelirium at admission6 (17.1)12.3 (1)0.005*
No delirium18 (3.9)
Incident delirium5 (14.7)11.9 (1) 0.005*
No delirium12 (2.9)

In-hospital mortalityDelirium at admission4 (8.3)5.8 (1)0.073
No delirium10 (2.2)
Incident delirium8 (23.5)75.9 (1)0.005*
No delirium2 (0.5)

Deceased at 28 days after discharge#Delirium at admission5 (13.5)19.8 (1)0.005*
No delirium6 (1.5)
Incident delirium2 (7.7)7.2 (1)0.029*
No delirium4 (1.1)

Discharged to a higher care level Delirium at admission6 (20.0)10.4 (1)0.005*
No delirium19 (5.1)
Incident delirium 3 (15.8)4.6 (1)0.08
No delirium16 (4.6)

Readmitted to hospital within 28 days
after discharge
Delirium at admission2 (5.0)3.08 (1)
0.260
No delirium62 (15.2)
Incident delirium5 (14.7)0.006 (1)1.000
No delirium57 (15.2)

Delirium was not present at admission; #there was no significant difference in mortality at 28 days according to whether delirium had resolved at discharge or not ( (1) = 0.814; ).
Higher level of care is defined as patients newly admitted to a nursing home when they had been previously living in the community prior to the hospital admission and patients who transferred from low to high nursing home care following hospitalization. * .