TABLE 4.

Results of logistic regression analysis

Single-nucleotide polymorphism	Genotype	Coefficient of regression	Standard error	Wald statistic	P	OR (95% CI)
Promoter T−138→C	T/C	−0.185	0.287	0. 416	0.519	0.831 (0.474–1.458)
	C/C	0.502	0.584	0.738	0.390	1.651 (0.526–5.189)
Promoter G−7→A	G/A	0.431	0.351	1.502	0.220	1.538 (0.773–3.064)
	A/A	1.459	0.626	5.434	0.020	4.302 (1.262–14.673)
Exon 4 Thr83→Ala	Thr/Ala	−0.247	0.358	0.479	0.489	0.781 (0.387–1.574)
	Ala/Ala	−0.402	0.509	0.623	0.430	0.669 (0.247–1.814)

Homozygotes according to major allele were considered as a reference group