HLA Haplotypes and Genotypes Frequencies in Brazilian Chronic Periodontitis Patients

Table 2

HLA associations between chronic periodontitis patients and controls.

HLA	Total		P		OR (95% CI)	Nonsmokers		P		OR (95% CI)
	Patients; (%)	Controls; (%)				Patients; (%)	Controls; (%)
02	49 (22.7)	86 (28.5)				17 (18.5)	66 (30.6)	0.035	0.63	0.52 (0.26–0.97)
A32	3 (1.4)	15 (5.0)	0.030	0.45	0.27 (0.05–0.97)	1 (1.1)	15 (6.0)
B40	16 (7.4)	8 (2.6)	0.018	0.38	2.93 (1.16–8.07)	9 (9.8)	7 (3.2)	0.025	0.60	3.22 (1.03–10.55)
DRB108	17 (7.9)	11 (3.6)	0.048	0.58	2.26 (0.97–5.45)	8 (8.7)	8 (3.7)
DQB106:01	0 (0)	7 (2.3)	0.045	0.63	0 (0–0.96)	0 (0.0)	5 (2.3)
DQB106:09	5 (2.3)	0 (0.0)	0.012	0.17	undf (1.29–undf)	0 (0.0)	0 (0.0)

undf = undefined.
Total group (smokers, nonsmokers, and ex-smokers patients and controls).
Nonsmoking group (patients and controls).