Table 3.
Comparative characteristics in subgroups of patients with optimal (>8) and suboptimal (≤8) IPI values at 2 h after extubation.
| Characteristics | IPIoptimal (n = 25) | IPIsuboptimal (n = 13) | p-Value |
|---|---|---|---|
| Age, years | 63 (55–70) | 65 (56–74) | 0.69 |
| BMI, kg/m2 | 29 (27–32) | 30 (28–32) | 0.63 |
| EuroScore II, points | 1.01 (0.84–1.5) | 1.4 (1.2–2.05)a | 0.03 |
| EF before surgery, % | 60 (55–66) | 52 (46–60)a | 0.02 |
| EF after surgery, % | 63 (60–68) | 57 (52–62)a | 0.007 |
| SpO2, % | 95 (93–98) | 93 (89–95)a | 0.045 |
| etCO2, mmHg | 37 (35–39) | 33 (30–35)a | 0.03 |
| PR, bpm | 77 (70–88) | 88 (75–99)a | 0.04 |
| RR/min | 14 (14–18) | 15 (15–18) | 0.33 |
| PaO2/FiO2, mmHg | 324 (301–349) | 317 (293–331) | 0.32 |
| PaCO2, mmHg | 38 (36–39) | 36 (31–39) | 0.58 |
| Fluid balance, mL | 320 (−110 to 498) | −225 (−337 to +275)a | 0.03 |
| Urine output, mL/kg/h | 1.0 (0.7–1.3) | 1.2 (1.0–1.6) | 0.06 |
| Administration of diuretics | 4 | 11b | 0.05 |
| Duration of surgery, min | 195 (172–237) | 245 (202–255) | 0.13 |
| Duration of ICU stay, h | 24 (24–72) | 24 (24–48) | 0.30 |
| Hospitalization time, days | 9 (7–10) | 9 (8–12) | 0.35 |
Data presented as median (25th–75th percentile), percentage or numbers.
BMI, body mass index; EF, ejection fraction; PR, pulse rate; RR, respiratory rate; ICU, intensive care unit.
Bold font indicates statistical significance with p < 0.05.
aMann–Whitney test, p < 0.05.
bχ2, p < 0.05.