Table 2.

Summary ORs and 95%CI of IL-18 gene polymorphisms and TB risk

Subgroup	Genetic model	Effects model	Test of heterogeneity		Test of association
			I2	P	OR	95% CI
−607C>A
Overall	AA vs CC	Random	70.2%	0.01	1.27	0.82–1.96
	CA vs CC	Fixed	39.7%	0.16	1.06	0.89–1.26
	Dominant model	Random	59.8%	0.04	1.09	0.83–1.43
	Recessive model	Random	52.5%	0.08	1.23	0.92–1.65
Consistent with	AA vs CC	Fixed	0.00%	0.80	1.01	0.77–1.31
HWE	CA vs CC	Fixed	0.00%	0.72	0.94	0.77–1.15
	Dominant model	Fixed	0.00%	0.72	0.96	0.79–1.16
	Recessive model	Fixed	0.00%	0.80	1.04	0.83–1.31
−137G>C
	GG vs CC	Fixed	2.00%	0.36	1.42	0.78–2.58
	GC vs CC	Fixed	0.00%	0.38	1.16	0.62–2.16
	Dominant model	Fixed	0.00%	0.38	1.34	0.74–2.43
	Recessive model	Random	78.4%	0.03	0.96	0.26–3.56