Table 1. Differences between HF registries in Korea.
| Variables | Korean Heart Failure (KorHF) Registry | Korean Acute Heart Failure (KorAHF) Registry | Korean Heart Failure III (KorHF III) registry |
|---|---|---|---|
| Region | Korea | Korea | Korea |
| Time period | June 2004–April 2009 | March 2011–February 2014 | March 2018–ongoing |
| Number of participating hospitals | 24 | 10 | 47 |
| Sample size | 3,200 | 5,625 | Over 7,000 |
| Follow-up | Median 1.7 years | Median 4.3 years | Over 5 years |
| Male sex (%) | 50.0 | 53.2 | - |
| Age (yr) | 67.6±14.3 | 68.5±14.5 | - |
| LVEF (%) | 38.5±15.7 | 37.7±15.6 | - |
| Ischemic etiology (%) | 52.3 | 37.6 | - |
| In-hospital mortality (%) | 6.4 | 4.8 | - |
| 1-year mortality (%) | 15.0 | 18.2 | - |
HF = heart failure; LVEF = left ventricular ejection fraction.