CI	confidence interval
CRC	colorectal cancer
ER	estrogen receptor
GS	Gilbert’s syndrome
GWAS	genome-wide association studies
IVW	inverse-variance weighted
MR	Mendelian randomization
1-SD	one-standard deviation
OR	odds ratio
SNP	single-nucleotide polymorphism
TA	thymine–adenine
UGT1A1	uridine-diphosphoglucuronate glucuronosyltransferase1A1
UKB	UK Biobank