Table 6.

Regression analysis of variables affecting the probability of failing therapies.

	SE	R2 Corrected	F	p-Value
Stratum age below 1 month	0.19	0.022	5.39	0.022
Presence of fever	0.2	0.003	0.59	0.44
RSV+	0.19	0.0088	1.69	0.14
Low-flow oxygen support	0.20	0.0028	0.55	0.45
High-flow oxygen support	0.18	0.155	34.92	<0.0000001
pCO2 above 50 mmHg	0.51	0.49	0.34	0.09

SE: standard error. F: risk coefficient.