The causal role of multiple psycho-emotional disorders in gastroesophageal reflux disease: A two-sample Mendelian randomized study

Jing Wang, Meng Song and Mingbo Cao

PLOS ONE, 2024, vol. 19, issue 5, 1-14

Abstract: Background: Observational studies have previously shown a potential link between psycho-emotional disorders, such as mood swings, highly strung, anxious feelings, and gastroesophageal reflux disease (GERD). However, the credibility of these associations could be influenced by various confounding factors. Consequently, our study sought to employ a Mendelian randomization (MR) approach to elucidate a potential causal relationship between psycho-emotional disorders and GERD. Method: Information on independent genetic variants linked to mood swings, highly strung, and anxious feelings was gathered from European populations participating in the IEU Open GWAS research. The FinnGen Consortium provided the genome-wide association study (GWAS) summary statistics for GERD. Our analysis employed the inverse variance weighted (IVW) method under the random effects model as the main analytical method. To further bolster our findings, we employed the weighted median and MR Egger methods. In addition, we conducted a series of sensitivity analyses. Results: Our study supports the existence of a causal relationship between psycho-emotional disorders and GERD. Mood swings, highly strung, and anxious feelings adversely affected GERD risk (mood swings: OR 2.21, 95% CI 1.19–5.59, p = 3.09 × 10–2; highly strung: OR 5.63, 95% CI 1.77–17.94, p = 3.42 × 10–3; anxious feelings: OR 2.48, 95% CI 1.08–4.33, p = 2.89 × 10–2). Conclusion: This Mendelian randomization study provides robust support for the notion that mood swings, highly strung and anxious feelings, are associated with an increased risk of developing GERD.

Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0302469

DOI: 10.1371/journal.pone.0302469

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