Table 4. Patient characteristics and outcome measures in delirium versus no delirium group.
| Delirium (n = 39) | No delirium (n = 709) | P-value | ||
| Age, yrs | 82.4 (7.8%) | 68.2 (13.3%) | < 0.001 | |
| Reason of admission | 0.008 | |||
| Acute coronary syndrome | 21 (53.8%) | 420 (59.2%) | ||
| Congestive heart failure | 13 (33.3%) | 97 (13.7%) | ||
| Rhythm disorders | 2 (5.1%) | 84 (11.8%) | ||
| Non-specific chest pain | 0 | 42 (5.9%) | ||
| Other | 3 (7.7%) | 66 (9.3%) | ||
| History | ||||
| Dementia | 10 (25.6%) | 9 (1.3%) | < 0.001 | |
| CVA or TIA | 15 (38.5%) | 115 (16.2%) | < 0.001 | |
| Cognitive disturbances | 23 (59.0%) | 62 (8.7%) | < 0.001 | |
| Diabetes mellitus | 19 (48.7%) | 158 (22.3%) | < 0.001 | |
| Kidney disease | 25 (64.1%) | 163 (23.0%) | < 0.001 | |
| Risk factors at admission | ||||
| Hearing impairment | 18 (46.2%) | 124 (17.5%) | < 0.001 | |
| MUST ≥ 2 | 4 (10.3%) | 38 (5.4%) | 0.268 | |
| Infection duringhospitalisation | 25 (64.1%) | 119 (16.8%) | < 0.001 | |
| Diagnostic tools | ||||
| Pre-screening tool was taken | 37 (94.9%) | 585 (82.5%) | 0.045 | |
| Elevated delirium score | 28 (71.8%) | 95 (13.4%) | < 0.001 | |
| DOSS was taken | 38 (97.4%) | 100 (14.1%) | < 0.001 | |
| CAM was taken | 11 (28.2%) | 12 (1.7%) | < 0.001 | |
| Outcome measures | ||||
| CCU LOS, h | 38.8 [24.1–68.2] | 26.2 [19.9–42.5] | 0.027 | |
| Hospital LOS, h | 307.6 [140.9–435.5] | 98.6 [70.8–169.8] | < 0.001 | |
| Prescribed medication | 39 (100%) | 13 (1.8%) | < 0.001 | |
| In-hospital mortality | 6 (15.4%) | 20 (2.8%) | 0.001 | |
Data are n (%) or median [IQR] unless stated otherwise. CAM: confusion assessment method; CCU: coronary care unit; CVA: cerebrovascular accident; DOSS: delirium observation screening scale; IQR: interquartile range; LOS: length of stay; MUST: malnutrition universal screening tool; TIA: transient ischaemic event.