Newscasting from China: GERD Can Induce Occurrence of Rheumatoid Arthritis, but Not Vice Versa

Gastroesophageal reflux disease (GERD) causally and positively influences rheumatoid arthritis (RA), but RA has no significant influence on GERD, according to a study published online Dec. 13 in Frontiers in Genetics.

Haifan Wang, from The Second Affiliated Hospital of Xi’an Jiaotong University in China, and colleagues examined the bidirectional causal effects between GERD and RA by two-sample Mendelian randomization (MR) analyses using genetic evidence for 129,080 GERD cases versus 602,604 controls and 6,236 RA cases and 147,221 controls. The primary analysis used an inverse-variance weighted method.

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