Assessing the relationship between gut microbiota and irritable bowel syndrome: a two-sample Mendelian randomization analysis

Table 1 Details of the genome-wide association studies and datasets used in our analyses

Exposure or outcome	Sample size	Ancestry	Links for data download	PMID
Human gut microbiome	18,340 participants	Mixed	https://mibiogen.gcc.rug.nl	33462485
Irritable bowel syndrome	53,400 cases, 433,201 controls	European ancestry	http://ftp.ebi.ac.uk/pub/databases/gwas/summary_statistics/GCST90016001-GCST90017000/GCST90016564/	34741163

ISSN: 1471-230X