Table 2.

Area under the curve for ANP-to-BNP ratio, ANP, BNP, CTR and LAD

	AUC	p value	95% confidence interval
Preoperative ANP/BNP ratio	0.81	0.02	0.61 – 1.00
Preoperative ANP	0.73	0.08	0.50 – 0.96
Preoperative BNP	0.55	0.69	0.30 – 0.81
CTR	0.79	0.29	0.61 – 0.97
LAD	0.75	0.06	0.52 – 0.98

ANP: atrial natriuretic peptide; AUC: area under the curve; BNP: brain natriuretic peptide; CTR: cardiothoracic ratio; LAD: left atrial dimension.