Table 1.

The effect of genetically predicted FTH1 mRNA expression on hand OA

Exposure	N SNPs	MR Method	OR (95% CI)	P value
FTH1 mRNA expression	133	IVW	1.07 (1.02–1.11)	0.005
		Weighted median	1.09 (1.00–1.18)	0.046
		MR Egger	1.08 (1.00–1.18)	0.046
		MR-PRESSO	1.07 (1.02–1.11)	0.006

OA osteoarthritis, N SNPs number of single-nucleotide polymorphisms, IVW inverse-variance weighted, MR Mendelian randomization, OR odds ratio, CI confidence interval