Table 3. Association between genotypes of selected SNPs and GDM susceptibility.

Gene	Genotype	Case	Control	P 1	Crude OR (95% CI)	P 2	Adjusted OR (95% CI)	P 3
RXR-α	rs4842194
	GG	235	327	0.326	1		1
	GA	263	333		1.10 (0.87–1.39)	0.427	1.05 (0.82–1.35)	0.68
	AA	75	80		1.31 (0.91–1.86)	0.144	1.31 (0.90–1.91)	0.164
	AA/GA	338	413	0.249	1.14 (0.91–1.42)	0.249	1.10 (0.87–1.39)	0.418
	GG/GA	498	660	0.227	1		1
	AA	75	80		1.24 (0.89–1.74)	0.205	1.27 (0.89–1.82)	0.183
RXR-γ	rs100537
	AA	48	55	0.199	1		1
	AG	257	302		0.98 (0.64–1.49)	0.907	0.87 (0.56–1.36)	0.546
	GG	268	383		0.80 (0.53–1.22)	0.3	0.78 (0.50–1.21)	0.268
	GG/AG	525	685	0.536	0.88 (0.59–1.32)	0.528	0.82 (0.54–1.26)	0.364
	AA/AG	305	357	0.075	1
	GG	268	383		0.82 (0.66–1.02)	0.073	0.88 (0.70–1.10)	0.259
	rs2134095
	TT	158	219	0.004	1		1
	TC	324	357		1.26 (0.98–1.62)	0.076	1.32 (1.01–1.73)	0.043
	CC	91	164		0.77 (0.55–1.07)	0.117	0.85 (0.60–1.20)	0.363
	CC/TC	415	521	0.425	1.10 (0.87–1.41)	0.422	1.17 (0.91–1.52)	0.221
	TT/TC	482	576	0.003	1
	CC	91	164		0.72 (0.58–0.89)	0.003	0.71 (0.56–0.90)	0.004

The significance level after Bonferroni's correction for multiple testing is 0.017. Bold values indicate that the difference is statistically significant.

¹Two-sided χ² test for genotypes’ distributions between cases and controls.

²Unconditional logistic regression analysis.

³Adjusted for age, pre-BMI in logistic regression models.