Table 2. Patients’ basic characteristics on day 1.
| Parameter | All patients (n=99) | Primary ARDS (n=40) | Secondary ARDS (n=59) | p-value | Patients with TPTD (n=49) | Patients without TPTD (n=50) | p-value |
|---|---|---|---|---|---|---|---|
| Age (years) | 62±14 | 63±14 | 62±14 | 0.697 | 60±14 | 65±13 | 0.080 |
| Male sex (no; %) | 54 (55%) | 24 (60%) | 30 (51%) | 0.369 | 26 (53%) | 28 (56%) | 0.769 |
| Height (1) | 172±8 | 172±8.9 | 172±7 | 0.868 | 172±7 | 172±9 | 0.752 |
| Weight (kg) | 76±14 | 73±12 | 77±15 | 0.201 | 76±15 | 76±13 | 0.934 |
| SOFA score | 11±4 | 8.48±4.51 | 12.03±3.86 | <0.001 | 11.45±4.58 | 9.76±4.24 | 0.070 |
| APACHE-II score | 22±7 | 21±7 | 22±7 | 0.528 | 22±8 | 21±7 | 0.456 |
| PaO2/FiO2 (mmHg) | 191±68 | 180±66 | 197±68 | 0.253 | 188±62 | 195±73 | 0.398 |
| Oxygenation index (cmH2O/mmHg) | 8.41±6.4 | 9.6±8.4 | 7.6±4.2 | 0.162 | 8.4±4.4 | 8.4±8.0 | 0.116 |
RDS: Acute Respiratory Distress Syndrome; APACHE-II: Acute Physiology And Chronic Health Evaluation; SOFA: Sequential Organ Failure Assessment; TPTD: transpulmonary thermodiltion