Table 1.

Baseline characteristics of the study

Clinical characteristics	n = 504
Age (years)	76 (70–81)
Male Sex, n (%)	260 (51.5)
course of disease (years)	6 (2–15)
Follow-up date (days)	683 (440.5–730)
NYHA Class, n (%)
II	76 (15)
III	230 (45.6)
IV	198 (39.2)
LVEF, n (%)
≥ 50%	175 (34.7)
40–49%	211(41.9)
< 40%	118 (23.4)
BUN (mmol/L)	6.9 (5.3–9.1)
Creatinine (μmol/L)	91 (72–113)
BUN/Scr	18.5 (15.0–23.5)
eGFR(ml/min/1.73 m2)	63.9 (48.6–79.0)
Comorbidities, n (%)
Coronary heart disease	420 (83.3)
Diabetes	189 (37.5)
Hypertension	373 (74)
Hyperlipidaemia	280 (55.5)