Table 1

-Studies included in meta-analysis.

SN	Author, year	Publication type	Reason	Correlation coefficient	Sample size	Significance (p)
1	Browne et al,²⁸ 2004	Article	HF	-0,450	100	S
2	Clark and Coast,²⁹ 2000	Article	HF	0,330	91	S
3	Karaman,³ 2019	Article	HF	-0,190	156	S
4	Zhang et al,³⁰ 2 0 1 3	Article	HF	-0,1799	30	NS
5	Philbin et al,¹² 1998	Article	HF	-0,176	7476	S
6	Morales et al,⁴ 2012	Article	HF	0,410	101	S
7	Zhu et al,⁵ 2014	Article	HF	-0,460	203	S
8	Simkus et al,³¹ 2021	Article	HF	-0,341	309	S
9	Spiewak et al,³² 2014	Article	HF	-0,150	82	S
10	Taqavi et al,³³ 2002	Article	HF	-0,320	96	S
11	Aksu et al,³⁴ 2017	Article	HF	0,208	374	S
12	Ahmed and Hill,³⁵ 2012	Article	HF	-0,176	22	S
13	Okada et al,³⁶ 2020	Article	HF	0,035	871	S
HF: heart failure (or LVEF), S: Significant (results of the articles), NS: Not Significant, P: p-value