Table 1 Summary of patient characteristics
Demographic characteristic | Patients who did not develop incident delirium (N = 868) | Patients who developed incident delirium (N = 126) | P-value |
|---|---|---|---|
Age (mean, standard deviation) | 81.0 (6.5) | 82.7 (6.5) | 0.0004 |
Female Gender (Percent) | 498 (57.4 %) | 67 (53.2 %) | 0.37 |
Non-english speakers (Percent) | 155 (17.9 %) | 25 (19.9 %) | 0.03 |
Mean length of stay | 7.8 days | 11.6 days | <0.0001 |
Mean of the number of room transfers for patients during the period of hospitalization (SD) | 1.86 (1.19) | 2.67 (1.59) | <0.0001 |
Mean number of room transfers within first week of hospital stay (SD) | 1.68 (0.93) | 2.21 (1.28) | <0.0001 |
Mean number of room transfers before the onset of delirium (SD)* | 1.68 (0.93) | 1.60 (0.90) | 0.40** |
Mean number of room transfers per patient days before delirium onset (SD)*** | 0.43 | 1.03 | <0.0001 |
Number (percentage) of patients transferred between the emergency department and the ward | 868 (100 %) | 126 (100 %) | - |
Number (percentage) of patients transferred between the medical floor and other floors in the hospital | 145 (16.71 %) | 12 (9.52 %) | 0.04 |
Number (percentage) of patients transferred between different rooms on the same floor | 394 (45.39 %) | 56 (44.44 %) | 0.84 |
Number (percentage) of patients transferred between different beds in the same room | 51 (5.88 %) | 8 (6.35 %) | 0.83 |
Number (percentage) of patients transferred at least once (excluding ER to ward transfer) | 435 (50.12 %) | 92 (73.02) | <0.0001 |
In Total | |||
Within the first week of Hospitalization | 396 (45.62 %) | 83 (67.87 %) | <0.0001 |
Number (percentage) of patients transferred more than once (excluding ER to ward transfer) | 171 (19.70 %) | 57 (45.24 %) | <0.0001 |
In Total | |||
Within the first week of Hospitalization | 135 (15.55 %) | 38 (30.16 %) | <0.0001 |