Table 3.

Results of Meta-analysis of diastolic blood pressure

Study	| SMD	[95% Conf. Interval]		% Weight
Carter (1997) [8]	| 0.110	−0.439	0.660	8.55
Carter (2009) [15]	| -0.108	−0.304	0.087	18.74
Schumacher (2018)	| -0.654	−0.884	−0.424	17.58
Korcegez (2017)	| -0.584	−0.908	−0.259	14.37
Domingues (2017) [40]	| -0.285	−0.715	0.144	11.27
Javaid (2019) [42]	| -0.402	−0.752	−0.052	13.57
Shao (2017)	| -0.203	−0.482	0.075	15.91
D + L pooled SMD	| -0.329	−0.532	−0.125	100.00

Heterogeneity chi-squared =18.35 (d.f. = 6) p = 0.005.

I-squared (variation in SMD attributable to heterogeneity) = 67.3%.

Estimate of between-study variance Tau-squared = 0.0476.

Test of SMD = 0: z = 3.17 p = 0.002.

The significance level of the combined effect quantity test: 0.05.

The significance level of the heterogeneity test: 0.1.

Heterogeneity test: p > 0.1, no heterogeneity was considered; p < 0.1, heterogeneity was considered.