|
Patient demographicsaa |
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| Ever Delirium (n = 125) |
Never Delirium (n = 135) |
p-value |
|
|
|
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| Characteristic |
|||
| Mean age (± 1 SD; years) |
56 (± 18) |
49 (± 17) |
0.002 |
| Male |
62 (50%) |
67 (50%) |
1.0 |
| No. of Caucasians |
99 (79%) |
115 (85%) |
0.25 |
| APACHE II score, median (IQR) |
15 (10–21) |
11 (6–16) |
<0.001 |
| Charlson co-morbidity index, median (IQR) |
4 (2–7) |
3 (1–6) |
0.079 |
| Diagnostic category for ICU admission (%)b |
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| Pulmonary |
29 |
40 |
|
| Gastrointestinal |
20 |
21 |
|
| Metabolic |
22 |
18 |
|
| Cardiac |
7 |
9 |
|
| Hematology/oncology |
5 |
4 |
|
| Neurologic |
5 |
3 |
|
| Renal |
9 |
2 |
|
| Other |
3 |
3 |
|
|
aOne patient of the 261 enrolled had persistent coma and was never able to be evaluated for delirium. This patient was not included in the tables or figures. bThe diagnostic categories for ICU admission were recorded by the patients' medical teams as the diagnostic category most representative of the reason for ICU admission. There was no statistically significant difference between the groups in terms of admission categories (p = 0.23). Acute Physiology and Chronic Health Evaluation II (APACHE II) is a severity of illness scoring system, and these data were calculated using the most abnormal parameters during the first 24 hours following admission to the intensive care unit. APACHE II scores range from 0 (best) to 71 (worst). The Charlson co-morbidity index represents the sum of a weighted index that takes into account the number and seriousness of pre-existing comorbidities. ICU, intensive care unit; SD, standard deviation. | |||
Thomason et al. Critical Care 2005 9:R375 doi:10.1186/cc3729 |
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