Table 1 Comparison of baseline characteristics in patients with extubation success and failure
Variable | Extubation success (n = 69) | Extubation failure (n = 32) | p value |
|---|---|---|---|
Age, years (IQR) | 70 (65–87) | 68 (66–89) | 0.760 |
Male sex (%) | 35 (74.5) | 7 (53.8) | 0.181 |
Body mass index, kg/m2 (IQR) | 21.4 (19.0–24.9) | 22.3 (20.2–23.5) | 0.859 |
Simplified acute physiology score III (IQR) | 71 (63–77) | 59 (51–81) | 0.190 |
APACHE II | 14.5 (10–22) | 15.2 (11–24) | 0.18 |
SOFA score (x ± s) on admission | 4.75 ± 2.14 | 5.13 ± 2.25 | 0.188 |
SOFA score (x ± s) on SBT | 3.84 ± 1.24 | 4.25 ± 1.65 | 0.158 |
Clinical frailty score | 5.11 ± 1.8 | 5.23 ± 1.9 | 0.512 |
Primary disease | |||
Pulmonary infection (N, %) | 28 (40.58) | 10 (31.25) | 0.625 |
AECOPD (N, %) | 7 (10.1) | 4 (12.5) | 0.246 |
Acute left heart failure (N, %) | 3 (4.3) | 1 (3.1) | 0.346 |
Intracranial lesions (N, %) | 10 (14.5) | 6 (18.75) | 0.324 |
Complication | |||
Respiratory failure (N, %) | 45 (65.2) | 20 (62.5) | 0.821 |
ARDS (N, %) | 6 (8.7) | 2 (6.25) | 0.111 |
PaO2/FiO2 = 201–300 mmHg (mild ARDS) | 2 (2.9) | 0 (0) | 0.50 |
PaO2/FiO2 = 101–200 mmHg (moderate ARDS) | 2 (2.9) | 1 (3.1) | 0.63 |
PaO2/FiO2 ≤ 100 mmHg (severe ARDS) | 2 (2.9) | 1 (3.1) | 0.63 |
Shock (N %) | 32 (46.38) | 18 (56.25) | 0.725 |
Obstruction of sputum drainage (N, %) | 24 (34.8) | 12 (37.5) | 0.526 |
Total duration of mechanical ventilation in hospital (IQR) | 6 (3–10) | 10 (6–14) | 0.001 |
ICU stay time (IQR) | 8 (5–16) | 12 (6–21) | 0.0001 |
Total length of stay (d, x ± s) | 19.73 ± 3.69 | 24.67 ± 4.12 | 0.068 |