{{Rsnum
|rsid=9005
|Gene=IL1RN
|Chromosome=2
|position=113133835
|Orientation=plus
|GMAF=0.3012
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
|Gene_s=IL1RN
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;G)
| geno3=(G;G)
| CEU | 6.2 | 54.5 | 39.3
| HCB | 9.0 | 45.9 | 45.1
| JPT | 10.2 | 43.5 | 46.3
| YRI | 2.1 | 28.6 | 69.3
| ASW | 3.5 | 38.6 | 57.9
| CHB | 9.0 | 45.9 | 45.1
| CHD | 7.4 | 45.4 | 47.2
| GIH | 24.8 | 40.6 | 34.7
| LWK | 0.0 | 0.0 | 0.0
| MEX | 18.2 | 61.8 | 20.0
| MKK | 0.0 | 19.4 | 80.6
| TSI | 4.0 | 50.0 | 46.0
| HapMapRevision=28
}}{{PMID|19934104|OA=1
}} Radiographic severity of knee osteoarthritis is conditional on Interleukin 1 Receptor Antagonist gene variations.

{{PMID Auto
|PMID=20353565
|Title=Allelic variants of IL1R1 gene associate with severe hand osteoarthritis.
|OA=1
}}

{{PMID Auto
|PMID=21146623
|Title=Large-scale meta-analysis of interleukin-1 beta and interleukin-1 receptor antagonist polymorphisms on risk of radiographic hip and knee osteoarthritis and severity of knee osteoarthritis.
}}

{{PMID Auto
|PMID=23602982
|Title=IL-1 receptor antagonist gene as a predictive biomarker of progression of knee osteoarthritis in a population cohort
}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}