Table 1.

Patient demographics at admission and at diagnosis of ARDS

ID	Age	Gender	SAPS 3	Cause of ARDS	Charlson	P/F
1	51	M	43	Aspiration	3	102
2	54	F	67	Aspiration	2	136
3	79	M	71	Pneumonia	5	114
4	56	M	27	Pneumonia	2	90
5	63	M	74	Pneumonia	5	120
6	42	M	75	Pneumonia	2	160
7	73	F	52	Pneumonia	4	192
8	60	F	58	Pneumonia	3	162
9	41	M	39	Pneumonia	1	70
10	48	M	46	Pneumonia	1	127
11	79	M	63	Pneumonia	5	175
12	45	F	52	Pneumonia	1	190
13	61	F	96	Anaphylactic shock	4	58
14	40	F	31	Pneumonia	2	139
15	33	F	38	Pneumonia	2	289
16	51	F	73	Pneumonia	1	96
17	46	M	61	Pneumonia	1	194
18	56	M	51	Pneumonia	3	140
19	37	M	70	Pneumonia	6	106
20	46	F	67	Pneumonia	1	140

ID patient identification, Age age in years, SAPS 3 Simplified Acute Physiology Score 3 calculated at admission, ARDS acute respiratory distress syndrome, Charlson Charlson comorbidity index at admission, P/F ratio of arterial oxygen pressure divided by the fraction of inspired oxygen on the day of the diagnosis of ARDS