{{Rsnum
|rsid=1330344
|Gene=PTGS1
|Chromosome=9
|position=122369409
|Orientation=minus
|GMAF=0.3173
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
|Gene_s=PTGS1
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;G)
| geno3=(G;G)
| CEU | 0.0 | 0.0 | 0.0
| HCB | 28.9 | 57.8 | 13.3
| JPT | 31.8 | 52.3 | 15.9
| YRI | 30.2 | 47.6 | 22.2
| ASW | 0.0 | 0.0 | 0.0
| CHB | 28.9 | 57.8 | 13.3
| CHD | 0.0 | 0.0 | 0.0
| GIH | 0.0 | 0.0 | 0.0
| LWK | 0.0 | 0.0 | 0.0
| MEX | 0.0 | 0.0 | 0.0
| MKK | 0.0 | 0.0 | 0.0
| TSI | 0.0 | 0.0 | 0.0
| HapMapRevision=28
}}{{PMID Auto
|PMID=21061542
|Title=[A genetic background of ulcer diseases induced by NSAID/aspirin]
}}{{PMID Auto
|PMID=17301694
|Title=Identification and functional characterization of polymorphisms in human cyclooxygenase-1 (PTGS1).
|OA=1
}}

{{PMID Auto
|PMID=17926541
|Title=[Genetic polymorphism of COX-1 gene and NSAID-induced ulcer].
}}
{{PMID Auto
|PMID=23038044
|Title=Frequency, Risk Factors, Prognosis, and Genetic Polymorphism of the Cyclooxygenase-1 Gene for Aspirin Resistance in Elderly Chinese Patients with Cardiovascular Disease
}}{{PMID Auto
|PMID=23029430
|Title=Prognostic role of host cyclooxygenase and cytokine genotypes in a Caucasian cohort of patients with gastric adenocarcinoma.
|OA=1
}}
{{PMID Auto
|PMID=22609818
|Title=Genetic polymorphisms of HO-1 and COX-1 are associated with aspirin resistance defined by light transmittance aggregation in Chinese Han patients
}}