Table 3.
Patient-characteristics
| Open format ICU 1996-1998 (N = 230) |
Closed format ICU 2003-2005 (N = 228) |
Mean difference (95% confidence interval) | P-value | |
|---|---|---|---|---|
| Gender male | 57% | 52% | 0.23 | |
| age | 73 (12) | 75 (11) | 2 (-0.1 - 4.2) | 0.06 |
| APACHE II score | 14 (6.1) | 16 (8.6) | 2.7 (1.0-4.5) | 0.002 |
| IRIS score | 4.73 (0.87) | 4.67 (0.87) | 0.06 (-0.1 - 0.2) | 0.5 |
Values are mean (sd) unless indicated otherwise. ICU: Intensive Care Unit; APACHE II: Acute Physiology and Chronic Health Evaluation II; sd: standard deviation; IRIS: Identification of Risk in Surgical patients.