Validated tool for early prediction of intensive care unit admission in COVID-19 patients

Table 3 Reclassification

Initial model	Updated model		Predicted probability according to initial model				Statistics
			< 13%	13%-20%	> 20%	% Reclassified	NRI (95%CI)	P value
Model A	RF	< 13%	189	46	9	23	0.363 (0.148-0.579)	< 0.001
		13%-20%	6	12	5	48
		> 20%	2	13	14	52
	LR	< 13%	208	17	19	15	0.246 (0.029-0.463)	0.026
		13%-20%	14	3	6	87
		> 20%	8	4	17	41
LR	RF	< 13%	194	36	0	16	0.167 (-0.024-0.357)	0.087
		13%-20%	3	17	4	29
		> 20%	0	18	24	43

CI: Confidence interval; LR: Logistic regression; NRI: Net Reclassification Index; RF: Random forest.