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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