||increased risk for Crohn's disease
||0.76x decreased risk for Crohn's disease
rs1992662 is a SNP upstream of the PTGER4 gene that was found in a genome-wide association study to be associated with Crohn's disease.
In several European populations, the most common allele, rs1992662(T), was associated with increased risk for Crohn's disease. Conversely, the odds ratio (pooled over several populations) for the minor allele, rs1992662(C), was 0.76 (CI: 0.63-0.91, p=0.0013).[PMID 17684544]