Efficacy and safety of Yangxinshi tablet for chronic heart failure: A systematic review and meta-analysis

Table 2 Meta-analysis results for efficacy endpoints of Yangxinshi tablet in treating heart failure with preserved ejection fraction

Outcome	Sample size (E/C)	I2/%	MD/RR (95%CI)	P value
Clinical efficacy rate	88/83	37	1.19 (1.06-1.33)	0.003
NT-proBNP	48/48	0	-0.73 (-0.95 to -0.51)	< 0.00001
6-MWT	121/115	80	44.61 (17.58-71.65)	0.001

E: Experiment group; C: Control group; NT-proBNP: N-terminal pro-B-type natriuretic peptide; 6-MWT: 6-min walk test; MD: Mean difference; RR: Relative risk; I²: I-squared statistic.