TNNI3 and familial dilated cardiomyopathy: Table 2 demonstrates that high hs-cTn-I (HR = 5.91, 95% CI: 1.2–29.08, P value = 0.03) and high BNP (HR = 1.02, 95% CI: 1.01–1.03, P value < 0.01) were associated with an increased risk of poor prognosis in patients with idiopathic DCM. Patients with high hs-cTn-I and/or BNP levels had a higher incidence of endpoint events than patients with low hs-cTn-I and BNP levels, according to the survival curve (Figure 1a–c).