Table 1.

Main patient characteristics at the time of inclusion^a

Patient	Gender	ARDS aetiology	Outflow/inflow cannula size (French)	PaO2/FiO2 ratio at ECMO assistance	Time from assistance with ECMO (days)	Tidal volume (mL/kg)	Respiratory compliance (mL/cmH2O)	Norepinephrine	Epinephrine or dobutamine	Acute cor pulmonale
1	M	Community-acquired pneumonia	18/25	42	2	4	17.6	Yes	No	Yes
					8	6	34.3	Yes	No	Yes
2	F	H1N1	18/22	45	3	2.6	9.6	No	Yes	Yes
3	M	H1N1	18/23	42	5	4.1	16	Yes	No	Yes
4	M	Postoperative bacterial pneumonia	18/25	37	2	5.4	26.9	Yes	Yes	Yes
					12	7.1	41.8	Yes	Yes	Yes
5	M	Peritonitis	18/25	60	4	4.4	24.6	Yes	No	No
					7	5.1	28.7	Yes	No	No
6	F	H1N1	18/24	45	5	3.7	14.7	yes	Yes	Yes
7	M	Postoperative bacterial pneumonia	18/25	38	6	6	23.5	Yes	Yes	Yes
					6	3.8	10.4	Yes	Yes	Yes
8	F	Community-acquired pneumonia	18/25	50	7	5.8	21.3	No	No	No
9	F	H1N1	16/24	39	4	3.6	15	Yes	Yes	Yes
					12	5	27.3	Yes	No	No
10	M	Chest trauma	18/25	38	5	3.4	20.8	Yes	No	Yes
					11	4.8	23.8	No	No	No
11	F	Community-acquired pneumonia	16/25	58	11	5.6	16.3	No	No	No
					15	8	24.4	No	No	Yes
12	M	Postoperative bacterial pneumonia	16/25	45	4	2.9	12.2	Yes	Yes	Yes
					8	4.6	15.9	Yes	No	Yes
13	M	Community-acquired pneumonia	18/25	87	5	2.8	11.7	No	Yes	Yes
14	M	Bronchopleural fistula	18/25	52	10	2.9	12.2	Yes	Yes	Yes
15	M	Postoperative bacterial pneumonia	18/25	44	5	3.3	16.7	No	Yes	Yes
16	M	H1N1	18/24	50	6	5.7	38.2	Yes	No	No
17	F	Community-acquired pneumonia	16/23	46	3	3.4	16.7	Yes	No	Yes

^aARDS, acute respiratory distress syndrome; PaO₂/FiO₂ ratio, ratio of partial pressure of arterial oxygen to fraction of inspired oxygen; ECMO, extracorporeal membrane oxygenation; M, male; F, female. Patients 1, 4, 5, 7, 9, 10, 11 and 12 underwent two sets of measurements.