Table 1.
Patient characteristics
| Variable | Total cohort | Ventilator alone group | ECMO group | p-value* |
|---|---|---|---|---|
| Number of patients | 9418 | 8204 | 1214 | |
| Male gender | 7093 (75) | 6176 (75) | 971 (80) | < 0.001 |
| Age | 64 (54–73) | 65 (55–74) | 58 (50–65) | < 0.001 |
| Height (cm) | 167 (160–172) | 166 (160–171) | 169 (163–173) | < 0.001 |
| Weight (kg) | 70 (61–82) | 70 (60–80) | 79 (69–90) | < 0.001 |
| Body mass index (kg/m2) | 25.7 (22.9–29.1) | 25.4 (22.8–28.5) | 27.8 (24.7–31.6) | < 0.001 |
| PaO2/FIO2 at starting ECMO | N/A | N/A | 85 (70–104) | N/A |
| PEEP at starting ECMO (cmH2O) | N/A | N/A | 12 (10–15) | N/A |
Bold indicates analyses with statistically significant differences (p < 0.05)
Data are expressed as number (percentage) or median (interquartile range, IQR)
N/A, not available
*The p-values are the values comparing the ventilation alone group with the ECMO group