. 2021 Dec 29;11(1):179. doi: 10.3390/jcm11010179

Table 2.

ROC curves results of factors which might predict NIRS requirement. Tests performed in all included patients.

	AUC	Standard Error	Lower Bound (95%)	Upper Bound (95%)	Cut-Off	Sensitivity	Specificity	p-Value
SBCT	0.799	0.046	0.710	0.889	32	0.923	0.571	<0.0001
RR	0.575	0.059	0.459	0.691	28	0.348	0.909	0.206
PaO₂/FiO₂	0.836	0.057	0.725	0.948	280	0.875	0.786	<0.0001
SpO₂/FiO₂	0.821	0.052	0.720	0.923	438	0.720	0.857	<0.0001

Abbreviations: NIRS, non-invasive respiratory strategies; SBCT, single-breath counting test; RR, respiratory rate.