Table 1 Characteristics of patients by Intensive Care Unit (ICU)
ICU1 (242 episodes) | ICU2 (652 episodes) | P value | |
|---|---|---|---|
Median (IQR) age (years) | 69 (55–76) | 61 (46–72) | <0.001 |
Number of males/females | 171:71 | 371:281 | <0.001 |
Median (IQR) APACHE III | 62 (44–83) | 54 (38–77) | 0.001 |
Number of elective ICU admissions (%) | 99 (41) | 225 (35) | 0.08 |
Number of patients with acute renal failure (%) | 13 (5) | 30 (5) | 0.63 |
Number of surgical patients (%) | 111 (46) | 404 (62) | <0.001 |
Number of cardiac surgical patients (%) | 0 (0) | 53 (8) | <0.001 |
Median (IQR) total TISS-76 score/episode | 86 (52–166) | 79 (51–139) | 0.29 |
Median (IQR) bedside nurses per patient per day during ICU stay | 2.6 (1.5–4.9) | 2.0 (1.3–3.7) | <0.001 |
Median (IQR) total TISS/nurse ratio | 36 (30–39) | 40 (36–43) | <0.001 |
Number of patients with more than one ICU admission (%) | 11 (5) | 38 (6) | 0.45 |
Median (IQR) length of stay in ICU | 4 (2–6) | 2 (2–5) | <0.001 |
Number of in-ICU deaths (%) | 25 (10) | 73 (11) | 0.71 |
Number of in-hospital deaths (%) | 44 (18) | 122 (19) | 0.86 |
Median (IQR) APACHE III-predicted risk of death (%) | 15 (5–34) | 8 (2–30) | 0.001 |