TABLE 2.

Performance of POC and quantitative (cutoff value of 99 pmol/L) NT‐proBNP ELISAs to differentiate cats in the abnormal group from those in the normal group

	POC ELISA	95% confidence interval	Quantitative ELISA	95% confidence interval
Sensitivity	43%	29‐58%	51%	36‐66%
Specificity	96%	92‐99%	92%	87‐96%
AUC	0.7	0.63‐0.76	0.72	0.65‐0.78
Positive likelihood ratio	12	5.1‐28	6.59	3.7‐11.9
Negative likelihood ratio	0.59	0.5‐0.8	0.53	0.4‐0.7
Positive predictive value	78%	60‐89%	66%	52‐78%
Negative predictive value	85%	82‐88%	87%	83‐90%
Accuracy	84%	79‐89%	83%	77‐88%

Abbreviations: AUC, area under the receiver operating characteristic curve; POC, point‐of‐care NT‐proBNP.