Associations between I/D polymorphism in the ACE gene and lung cancer: an updated systematic review and a meta-analysis

Table 3 Summary of pooled OR in different ethnicities

Genetic model	group	Pooled OR (95% CI)	Heterogeneity		Test for overall effect
Genetic model	group	Pooled OR (95% CI)	P	I²	Z	P
II vs ID+DD	Caucasians	1.22 (0.75–2.00)	0.007	71.9%	0.80	0.423
II vs ID+DD	Asia	1.21 (0.76–1.94)	< 0.01	82.9%	0.81	0.419
II + ID vs DD	Caucasians	0.98 (0.79–1.23)	0.284	20.5%	0.15	0.881
II + ID vs DD	Asia	1.56 (0.94–2.59)	0.005	67.3%	1.71	0.088
I vs D	Caucasians	1.05 (0.82–1.34)	< 0.01	73.0%	0.39	0.694
I vs D	Asia	1.24 (0.92–1.66)	< 0.01	77.9%	1.41	0.159

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