TABLE 2.

A causal association between intake of beef and risk of rheumatoid arthritis (RA).

Outcomes and methods	Number of SNPs	OR	95% CI	P for association	P for Cochran’s Q test	P for MR-PRESSO global test
IVW (fixed)	6	3.05	1.11–8.35	0.030	0.698
MR-Egger	6	/	/	0.547a
Maximum-likelihood	6	3.12	1.10–8.79	0.032
MR-PRESSO (0 outliers)	6	3.05	1.40–6.66	0.038		0.708

^aP-value for the intercept of MR-Egger regression analysis.

CI, confidence interval; IVW, inverse-variance weighted; MR-PRESSO, Mendelian randomization pleiotropy residual sum and outlier; OR, odds ratio; SNP, single nucleotide polymorphism.