Table 2.

Frequency distribution of combined alleles among cases and controls.

Combination allele	Case n = 87 (%)	Control n = 94 (%)	OR (95% CI)	P value
All 3 SNPs are dominant	4 (4.59)	0	—	—
Two SNPs have dominant allele	19 (21.83)	11 (11.70)	2.108 (0.939–4.733)	0.074
One SNP has dominant allele	38 (43.67)	42 (44.68)	0.960 (0.533–1.727)	1
None of the SNP has dominant allele	24 (27.58)	42 (44.68)	0.471 (0.253–0.878)	0.020*

P values were calculated by chi square test and * denotes statistical significance at P < 0.05. Abbreviations: CI, confidence interval; P value, level of significance.