Table 5.

Harrell C index for Cox regression models predicting cardiovascular mortality and all-cause mortality

C Index95% CIP
Cardiovascular mortality
    established risk factors0.7500.682 to 0.818Reference
    established risk factors plus LVEF0.7890.715 to 0.8630.0049
All-cause mortality
    established risk factors0.7510.712 to 0.790Reference
    established risk factors plus LVEF0.7680.729 to 0.8090.0010
  • Established risk factors included age, gender, BMI, diabetes, hypertension, dyslipidemia, smoking status, serum albumin levels, serum C-reactive protein levels, and LV mass index.