Association of Interleukin-1α Functional Polymorphism with Risk of Chronic Periodontitis in Han Chinese Population

Table 2

Genotype and allele distributions of rs1800587 in the cases and controls and their associations with risk of CP.

		Case (n = 884)	Control (n = 893)	value	Effect group	OR	95% CIs
Allelic	T-allele	160	115	0.00359	T-allele	1.446	1.127–1.855
	C-allele	1608	1671
Additive	TT	6	5	0.00382	T-allele	1.446	1.126–1.856
	TC	148	105
	CC	730	783
Dominant	TT + TC	154	110	0.0025	TT + TC	1.502	1.152–1.957
	CC	730	783
Recessive	TT	6	5	0.75	TT	1.214	0.369–3.991
	TC + CC	878	888
Overdominant	TC	148	105	0.00264	TC	1.508	1.152–1.976
	TT + CC	736	788
Codominant	TT	6	5
	TC	148	105	1.00	TT	0.851	0.253–2.863
	CC	730	783	0.68	TT	1.287	0.391–4.236

OR, odds ratio; CIs, confidence intervals.