Table 4.

Net reclassification for in-hospital mortality by adding echocardiographic parameters to the PESI risk score

In-hospital mortality	PESI	PESI-Echo		Total	Reclassification
		Low	High		Higher	Less	Net	NRI
No	Low	173	47	220	47 (14.8%)	37 (11.7%)	−3.10%	9.90%
	High	37	59	96
	Total	210	106	316
Yes	Low	4	9	13	9 (23%)	4 (10%)	13%
	High	4	22	26
	Total	8	31	39

Green, correct reclassification; Grey, neutral reclassification; NRI, net reclassification improvement; Red, incorrect reclassification.