CLICK HERE TO SIGN UP FOR WORKING GROUP UPDATES Subscribe * indicates required Email Address * First Name Last Name Title Phone Number Address Address Line 2 City State/Province/Region Postal / Zip Code Country USAAaland IslandsAfghanistanAlbaniaAlgeriaAmerican SamoaAndorraAngolaAnguillaAntigua And BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelgiumBelizeBeninBermudaBhutanBoliviaBonaire, Saint Eustatius and SabaBosnia and HerzegovinaBotswanaBouvet IslandBrazilBrunei DarussalamBulgariaBurkina FasoBurundiCambodiaCameroonCanadaCape VerdeCayman IslandsCentral African RepublicChadChileChinaChristmas IslandColombiaComorosCongoCook IslandsCosta RicaCote D'IvoireCroatiaCubaCuracaoCyprusCzech RepublicDemocratic Republic of the CongoDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEthiopiaFalkland IslandsFaroe IslandsFijiFinlandFranceFrench GuianaFrench PolynesiaGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuamGuatemalaGuernseyGuineaGuyanaHaitiHondurasHong KongHungaryIcelandIndiaIndonesiaIranIraqIrelandIsle of ManIsraelItalyJamaicaJapanJersey (Channel Islands)JordanKazakhstanKenyaKiribatiKuwaitKyrgyzstanLao People's Democratic RepublicLatviaLebanonLesothoLiberiaLibyaLiechtensteinLithuaniaLuxembourgMacauMacedoniaMadagascarMalawiMalaysiaMaldivesMaliMaltaMarshall IslandsMartiniqueMauritaniaMauritiusMayotteMexicoMoldova, Republic ofMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNepalNetherlandsNetherlands AntillesNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandNorth KoreaNorwayOmanPakistanPalauPalestinePanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalQatarRepublic of KosovoReunionRomaniaRussiaRwandaSaint Kitts and NevisSaint LuciaSaint MartinSaint Vincent and the GrenadinesSamoa (Independent)San MarinoSao Tome and PrincipeSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSint MaartenSlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth Georgia and the South Sandwich IslandsSouth KoreaSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan Mayen IslandsSwazilandSwedenSwitzerlandSyriaTaiwanTajikistanTanzaniaThailandTimor-LesteTogoTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks & Caicos IslandsUgandaUkraineUnited Arab EmiratesUnited KingdomUruguayUzbekistanVanuatuVatican City State (Holy See)VenezuelaVietnamVirgin Islands (British)Virgin Islands (U.S.)Western SaharaYemenZambiaZimbabwe Institution Stakeholder Type Patients and the Public (OMERACT Patient Research Partners, current and potential consumers of patie Principal investigators (Researchers and their funders) Product makers (Drug and device manufacturers) Policy makers (FDA, EMA, CADTH, PBAC, Departments of Health and Human Services, Congress, states, pr Providers Individuals (e.g. nurses, physicians, mental health counselors, pharmacists, and other pro Purchasers (Employers, the self-insured, government and other entities responsible for underwriting Payers (Insurers, Medicare and Medicaid, insurance exchanges, and others responsible for reimburseme OMERACT Working Groups Adherence Adult Stills ANCA-Associated Vasculitis (Response Criteria) Axial Spondyloarthritis AxSpA(Core Set) Behçet’s Syndrome (Core Domain Set) Calcium Pyrophosphate Deposition (CPPD) Chronic Nonbacterial Osteomyelitis (CNO) Composite Outcomes Contextual Factors CTD-ILD Equity Flares in OA Foot & Ankle Disorders Glucocorticoid-Related Adverse Events Gout Hand OA Hip & Knee OA Immune Related Adverse Events Juvenile Idiopathic Arthritis Juvenile Idiopathic Arthritis MRI (JAMRI) Large Vessel Vasculitis Late Stage Knee & Hip OA Composite Measure MRI Taskforce Myositis Pain Patient Outcomes in Longitudinal Observational Studies (POLOS) - RA Patient preferences to value health outcomes for RCT's Polymyalgia Rheumatica (PMR) Psoriatic Arthritis Remission in RA Patient Perspective Rheumatoid Arthritis Safety Shared Decision Making Shoulder Pain Sjogren's Surrogate Outcomes Synovial Tissues in RCT Systemic Sclerosis (Scleroderma) Systemic Lupus Erythematosus Ultrasound Worker Productivity