Fig. 1

Kaplan-Meier survival analysis of BNP levels. One-year survival rates were 95.5% at BNP <50 pg/mL, 95.0% at 50-100 pg/mL, 90.0% at 100-200 pg/mL, 93.6% at 200-300 pg/mL, 87.3% at 300-500 pg/mL, 83.7% at 500-1000 pg/mL, and 70.2% at >1000 pg/mL. The 1-year survival rate was significantly low at BNP >300 pg/mL