Table 1 Patient characteristics

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/F_IO₂ 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