Table 1.

Two-sample Mendelian randomization for PM2.5 on GDM risk.

Method	N SNPs	Beta Coefficient	SE	OR (95%CI)	p
IVW	85	0.551	0.177	1.736 (1.226–2.457)	0.002
MR–Egger	85	0.350	0.295	1.418 (0.795–2.530)	0.240
Weighted median	85	0.339	0.298	1.404 (0.782–2.519	0.256
Weighted mode	85	0.351	0.292	1.421 (0.802–2.519)	0.232
Simple mode	85	0.598	0.594	1.818 (0.567–5.829)	0.317

The number of single nucleotide polymorphisms, SNPs; SE, standard error; OR, odds ratio; CI, confidence interval.