Influences of laparoscopic-assisted gastrectomy and open gastrectomy on serum interleukin-6 levels in patients with gastric cancer among Asian populations: a systematic review

Table 2 Meta-regression analyses for the potential source of heterogeneity

Heterogeneity factors	Coefficient	SE	t	P(Adjusted)	95% CI
Heterogeneity factors	Coefficient	SE	t	P(Adjusted)	LL	UL
Year	0.293	0.404	0.73	0.832	−0.695	1.281
Sample Size	−0.018	0.020	−0.91	0.717	−0.104	0.031
Country	−0.500	1.902	−0.26	0.998	−7.725	4.155
Language	−2.399	1.856	−1.29	0.503	−11.084	2.141

ISSN: 1471-230X