Lack of Association between Interleukin-1β Gene Polymorphism (rs16944) and Chronic Periodontitis: From a Case-Control Studies to an Updated Meta-Analysis

Table 1

Analysis of genotypes of IL-1β polymorphism (rs16944) with chronic periodontitis.

Model	Genotype	Control (%)	Chronic periodontitis (%)	OR (95% CI)
Codominant	C/C	12 (37.5%)	11 (22.0%)	1	0.06
	C/T	12 (37.5%)	32 (64.0%)	2.91 (1.01–8.34)
	T/T	8 (25.0%)	7 (14.0%)	0.95 (0.26–3.51)
Dominant	C/C	12 (37.5%)	11 (22.0%)	1	0.13
	C/T-T/T	20 (62.5%)	39 (78.0%)	2.13 (0.80–5.67)
Recessive	C/C-C/T	24 (75.0%)	43 (86.0%)	1	0.21
	T/T	8 (25.0%)	7 (14.0%)	0.49 (0.16–1.51)
Log-additive	—	—	—	1.10 (0.57–2.14)	0.77

OR: odds ratio; CI: confidence interval.