Association of N-terminal pro-B-type natriuretic peptide levels and mortality risk in acute myocardial infarction across body mass index categories: an observational cohort study

Table 4 The best NT-proBNP cutoff values in predicting 5-year all-cause and cardiac mortality across the BMI categories

	NT-proBNP cutoff (pg/ml)	95% CI	AUC	95% CI	Sensitivity	Specificity
5-year all-cause mortality
BMI < 18.5 kg/m²	5710	1249–22026	0.752	0.619–0.859	0.754	0.654
BMI 18.5–23.9 kg/m²	4492	3678–6634	0.769	0.724–0.810	0.662	0.787
BMI 24–27.9 kg/m²	2253	1882–3328	0.789	0.752–0.825	0.747	0.715
BMI ≥ 28 kg/m²	1300	953–5271	0.781	0.728–0.830	0.822	0.618
5-year cardiac mortality
BMI < 18.5 kg/m²	5710	1408–14618	0.660	0.535–0.782	0.810	0.541
BMI 18.5–23.9 kg/m²	3866	3361–6503	0.758	0.696–0.818	0.742	0.711
BMI 24–27.9 kg/m²	3294	1998–5014	0.793	0.739–0.844	0.710	0.759
BMI ≥ 28 kg/m²	1920	916–5486	0.770	0.691–0.841	0.761	0.677

AUC, area under curve; BMI, body mass index; CI confidence interval; NT-proBNP, N-terminal pro-B-type natriuretic peptide

ISSN: 1758-5996