TABLE 1.

Heterogeneity and horizontal pleiotropy analyses between RA and CD.

Exposure	Outcome	MR-PRESSO global test		MR-Egger		IVW
		RSSobs	p-value	Intercept	p-intercept	Q statistic	Q-pval
RA	CD	2.34	0.877	0.009	0.819	1.43	0.839
CD	RA	16.84	0.12	0.175	0.384	8.66	0.034