<prompt> Most common chronic arthritis seen in childrenJRARheumatic arthritisRheumatic feverSepsis  <response>: Amongst the given option only JRA causes chronic arthritis in children.ArthritisArthritis in children is diagnosed if -A There is swelling or effusion in a jointB There are any 2 of the following features -Decreased ROM Pain TendernessIncreased local temperatureDifferential diagnosis of arthritisAcute arthritis usually 2 weeksAcute rheumatic feverTransient toxic synovitisArthritis associated with Kawasaki diseaseHenoch-Schlein purpuraSeptic arthritis Staphylococcus aureus, Hemophilus influenza,Neisseria meningitidesTraumaSubacute arthritis 2-6 weeksReactive arthritis secondary to extra-articular infectionArthritis associated with SLE, dermatomyositis, polyarteritis nodosaBone pains ? arthritis associated with leukaemianeuroblastomaArthritis associated with Lyme diseasebrucellosisSickle cell disease, bleeding diathesis, hemarthrosisPrimary immunodeficiencys e.g., Brutons hypogammaglobulinemiaChronic arthritis 6 weeksJuvenile rheumatoid arthritis Ankylosing arthritis Tubercular arthritis Legg-Calve-Perthes disease Psoriasis Inflammatory bowel disease 