Table 2.

Allelic and genotypic frequencies of the rs66554220 variant (14 bp ID) and association study according to inheritance models

Inheritance models	Healthy individuals n = 198 (%)	Vitiligo patients n = 197 (%)	(χ2) p-value	OR [95% CI]
Allele:
Del	109 (55)	111 (56)	Reference
Ins	89 (45)	86 (44)	(0.05) 0.82	0.97 [0.73–1.28]
Co-dominant model:
Del/Del	63 (31.82)	64 (32.49)	Reference
Del/Ins	92 (46.46)	92 (46.70)	(0.00) 0.95	0.98 [0.63–1.55]
Ins/Ins	43 (21.72)	41 (20.81)	(0.05) 0.82	0.94 [0.54–1.63]
Dominant model:
Del/Del	63 (31.82)	64 (32.49)	Reference
Del/Ins + Ins/Ins	135 (68.18)	133 (67.51)	(0.02) 0.89	0.97 [0.64–1.48]
Recessive model:
Del/Del + Del/Ins	155 (78.28)	156 (79.19)	Reference
Ins/Ins	43 (21.72)	41 (20.81)	(0.05) 0.83	1.06 [0.65–1.71]

OR – odds ratio, χ² – value of χ², p-value – significance defined by χ² test; 95% CI – confidence interval of 95%.