Table 2

- Comparison of genotype distributions of NOS3 intron 4 VNTR variants in BD patients with the control group.

Genotypes	Bipolar disorder	Healthy control	OR	95% CI	P-value
NOS3	n=95 (%)	n=95 (%)
b/b	66 (69.5)	77 (81.1)	1.880^*	0.958-3.687^*	.064^*
b/a	25 (26.3)	17 (17.9)	0.610^*	0.304-1.223^*	.162^*
a/a	4 (4.2)	1 (1.1)	0.242^*	0.027-2.207^*	.174^*
Allele
b	157 (82.6)	171 (90)
a	33 (17.4)	19 (10)	1.892^*	1.033-3.463^*	.037^*

OR - odds ratio, CI - confidence interval,