Table 3.

Begg’s and egger’s test results for publication bias

Test	Statistic	Value	Std. Err.	t -value	P -value	95%CI
Begg’s Test	Kendall’s Score (P-Q)	−78				-
	Std. Dev. of Score	141.48				-
	z -value	−0.55			0.581	-
	z-value(continuity corrected)	0.54			0.586	-
Egger’s Test	Slope bias	0.1349	0.4141	0.33	0.746	−0.6953, 0.9650
	Intercept	16.9316	5.2736	3.21	0.002	6.3587, 27.5045