Table 2. The meta-analysis results between ADIPOQ-rs2241766 G/T polymorphism and obesity in addictive model (GG vs. TT).

Study	No. of studies	Test of association		Effects model	Test of heterogeneity
		OR(95% CI)	P value		P value	I 2 (%)
In overall studies	18	1.39 (1.11–1.73)	0.004	Fixed	0.520	0
In Chinese studies	11	1.54 (1.19–2.00)	0.001	Fixed	0.700	0
In Chinese studies (exclude studies 27 and 31)1	9	1.74 (1.19–2.54)	0.004	Fixed	0.740	0
In non-Chinese studies	7	1.02 (0.66–1.58)	0.930	Fixed	0.400	2
In non-Chinese studies (exclude studies 20, 32 and 33)2	4	0.74 (0.36–1.51)	0.410	Fixed	0.580	0
In non-Chinese studies (exclude studies 17 and 20)3	5	1.20 (0.75–1.92)	0.460	Fixed	0.650	0

Note: ¹Meta-analysis in the Chinese studies excluding studies with different diagnostic criteria of obesity;

²Meta-analysis in the non-Chinese studies excluding studies with different diagnostic criteria of obesity;

³Meta-analysis in the non-Chinese studies excluding studies that only assessed females.