Table Three:
Model discrimination in HEAAL derivation cohort and on external validation in the DIG cohorts
| Full model (12 predictors) in HEAAL derivation cohort | DIG compatible model (8 predictors) in HEAAL derivation cohort | DIG compatible model in main DIG trial (LVEF ≤ 45%) | DIG compatible model in pooled DIG trials (all LVEF) | |||||
|---|---|---|---|---|---|---|---|---|
| c-statistic | 95% CI | c-statistic | 95% CI | c-statistic | 95% CI | c-statistic | 95% CI | |
| Overall model | 0.72 | 0.66–0.70 | 0.71 | 0.69–0.73 | 0.69 | 0.67–0.70 | 0.69 | 0.68–0.70 |
| Death | 0.75 | 0.73–0.76 | 0.73 | 0.72–0.75 | 0.72 | 0.71–0.73 | 0.72 | 0.71–0.73 |
| HF hospitalization | 0.68 | 0.66–0.70 | 0.67 | 0.65–0.69 | 0.65 | 0.63–0.66 | 0.65 | 0.64–0.67 |
HEAAL indicates Heart Failure Endpoint evaluation of Angiotensin II Antagonist Losartan trial; DIG, Digitalis Investigator Group trial; CI, confidence interval; HF, heart failure