Table 5.

The meta-analysis results after individual exclusion of studies.

Excluding studies	I2	MD	95%CI	P
Ahn S 2012	72%	-0.71	[-0.97, -0.46]	<0.00001
Chan 2018	71%	-0.81	[-1.08, -0.55]	<0.00001
Chen 2010	73%	-0.77	[-1.02, -0.52]	<0.00001
Gao 2017	71%	-0.83	[-1.18, -0.49]	<0.00001
Hu 2022	52%	-0.60	[-0.80, -0.41]	<0.00001
Li 2015	62%	-0.64	[-0.86, -0.42]	<0.00001
Liu 2024	72%	-0.72	[-0.98, -0.46]	<0.00001
Meng 2014	74%	-0.82	[-1.17, -0.48]	<0.00001
Song 2013	73%	-0.73	[-0.99, -0.48]	<0.00001
Zhou 2021	73%	-0.75	[-1.01, -0.48]	<0.00001