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Table 4 Multivariable proportional-hazard model of primary and secondary outcomes

From: Prognostic value of myocardial strain and late gadolinium enhancement on cardiovascular magnetic resonance imaging in patients with idiopathic dilated cardiomyopathy with moderate to severely reduced ejection fraction

  Primary outcome a Secondary outcome
HR 95% CI P value HR 95% CI P value
Na (mmol/l) 0.821 0.761–0.885 < 0.001 0.896 0.817–0.982 0.019
Presence of LGE 4.729 1.111–20.121 0.0355 2.358 1.229–4.523 0.010
Myocardial mass     0.986 0.975–0.996 0.009
lnNT-proBNP     1.352 1.031–1.771 0.029
  1. aBased on a multivariable Cox model with time-dependent covariates at 6 months. Before 6 months, the HR was 0.71 (p-value = 0.58, 95% CI: 0.206, 2.415), while after 6 months, the HR is as given in the Table
  2. The Harrell’s c-index of multivariable Cox proportional hazards model were 0.727 (95% CI: 0.616 to 0.838) and 0.744 (95% CI: 0.648 to 0.839) for primary and secondary outcomes, respectively
  3. Abbreviations: NT-proBNP, N-terminal pro-B-type natriuretic peptide; CI confidence interval, HR hazard ratio, LGE late gadolinium enhancement