Table 1.

Demographics and outcomes of the studied subjects.

Pat. No.	Age	Gender	APACHE II	Height (cm)	Weight (kg)	init.	init.	ROX	HFNC	Dead
						FiO2	PaO2		success
1	53	F	10	160	56	0.90	72	6.67	1	0
2	39	M	8	172	88	0.80	92	8.95	1	0
3	77	F	12	159	57	0.55	97	5.00	1	0
4	74	M	8	175	68	0.55	78	8.82	0	1
5	82	M	10	177	68	0.80	87	5.94	1	0
6	89	M	16	174	65	0.40	56	6.96	1	0
7	82	M	18	170	68	0.55	68	12.82	1	0
8	67	M	14	173	69	0.70	45	8.67	1	0
9	50	M	8	168	59	0.80	69	7.68	1	0
10	67	M	24	173	68	0.55	82	9.90	1	0
11	35	M	25	170	85	1.00	184	4.44	1	0
12	67	M	20	172	69	0.50	69	5.35	0	0
13	75	M	15	176	64	0.50	47	4.69	0	0
14	72	M	22	178	63	0.60	73	6.94	0	1
15	65	F	15	158	56	1.00	84	4.78	0	0
16	79	M	18	171	59	1.00	64	6.65	0	1
17	76	F	24	158	63	0.60	73	3.07	0	1
18	52	M	24	172	70	0.55	70	6.40	1	0
19	66	M	13	174	69	0.60	51	5.22	1	0
20	72	M	18	175	73	0.60	84	9.26	1	0
21	66	M	21	173	69	0.40	68	4.85	0	0
22	77	M	24	178	65	0.45	61	7.84	1	0
23	83	M	18	169	82	0.80	232	6.94	1	0
24	69	M	24	173	69	1.00	58	6.67	1	0
25	62	M	17	176	68	0.50	65	6.74	1	0
26	66	M	16	174	71	0.50	130	9.26	1	0
27	72	M	18	172	61	0.45	68	8.25	1	0
28	68	M	16	170	58	0.50	100	7.25	1	1
29	77	F	12	155	49	0.50	67	6.27	1	0
30	73	M	17	172	79	0.55	63	6.17	0	1
31	77	M	25	173	72	0.55	83	5.29	1	0
32	51	F	24	155	55	0.60	84	8.98	1	0
33	57	M	25	168	58	0.60	68	7.84	1	0
34	66	F	18	155	57	0.50	65	8.51	1	0
35	66	M	14	173	65	0.50	82	11.70	1	0
36	63	M	17	174	68	0.50	67	8.17	0	1
37	31	F	20	161	56	0.40	57	6.11	1	0
38	54	M	14	175	68	0.50	70	18.46	1	0
39	63	F	13	156	63	0.33	89	10.00	1	0
40	52	M	14	172	65	0.70	153	7.57	1	0
41	82	M	24	172	55	0.50	60	11.53	1	0
42	67	F	17	158	65	0.50	69	8.61	0	0
43	74	M	18	178	59	0.50	62	11.00	1	0
44	52	M	24	169	64	0.50	65	9.51	1	0
45	73	M	24	174	59	0.90	50	8.08	1	0
46	58	F	24	158	51	0.70	83	10.42	1	0
Mean	66	M:F	18	169	65	0.61	80	7.83	s:f	d:a
SD	13	35:11	5	7	8	0.18	34	2.65	35:11	7:39

Pat. No., patient number; SD, standard deviation; M, male; F, female; APACHE II, Acute Physiology and Chronic Health Evaluation II; init, initial; FiO₂, fractional inspired oxygen; PaO₂, arterial oxygen partial pressure; s:f, success vs. failure; d:a, dead vs. alive.

FiO₂ and PaO₂ are values recorded during oxygen therapy before high flow nasal cannula (HFNC).

ROX index, SpO₂/FiO₂/respiratory rate HFNC success was marked 1 and failure marked 0.

Dead marked subjects died in the ICU.