Analysis of joint effects of pre-TAVI NTproBNP and pre-TAVI OPN levels
| Group | n | HR (95% CI) | p Value |
| (1) NTproBNP low, OPN low | 131 | 1 | |
| (2) NTproBNP high, OPN low | 32 | 1.41 (0.69 to 2.89) | ns |
| (3) NTproBNP low, OPN high | 32 | 1.92 (0.86 to 3.77) | ns |
| (4) NTproBNP high, OPN high | 22 | 2.82 (1.48 to 5.37) | 0.002 |
ns, non-significant; NTproBNP, N-terminal probrain natriuretic peptide; OPN, osteopontin; TAVI, transcatheter aortic valve implantation.