Artritis Reumatoide/epidemiología; Bases de Datos Factuales/estadística & datos numéricos; Métodos Epidemiológicos; Revisión de Utilización de Seguros/estadística & datos numéricos; Clasificación Internacional de Enfermedades/estadística & datos numéricos; Algoritmos; Humanos; Incidencia

A; ACR; AMI; ANA; Administrative database; Algorithm; American College of Rheumatology; CD; CI; CPT; Crohn's disease; DB; DMARD; DMBA; Deseret Mutual Benefits Administration; EDC; EMR; GHS; Geisinger health system; HCPCS; HZ; Health Care Financing Administration Common Procedure Coding System; IBD; ICD; ICD-9; International Classification of Diseases; JRA; KPNC; Kaiser Permanente Northern California; MEDECHO; MTX; Maintenance et Exploitation des Donnees pour l'Etude de la Clientele Hospitaliere; NDC; NJ; NMSC; NPV; NSAID; National Drug Code; New Jersey; OSHPD; Office of Statewide Health Planning and Development; PA; PACE; PPV; Pennsylvania; Pennsylvania Assistance Contract for the Elderly; Positive predictive value; PsA; RA; RAMQ; RF; ROC; RX; Regie de l'assurance maladie du Quebec; Rheumatoid arthritis; SLE; THR; VA; VAMC; VISN; Validation; Veterans Affairs Medical Center; Veterans Affairs/Administration; Veterans Integrated Services Network; acute myocardial infarction; algorithm; anti-CCP; anti-TNF; anti-cyclic citrullinated peptide; anti-tumor necrosis factor; antinuclear antibody; confidence interval; current procedural terminology; database; disease-modifying antirheumatic drug; electronic medical records; estimated date of conception; herpes zoster; inflammatory bowel disease; juvenile-onset rheumatoid arthritis; methotrexate; negative predictive value; non-melanoma skin cancer; non-steroidal anti-inflammatory drug; positive predictive value; prescription; psoriatic arthritis; receiver operating characteristic (curve area); rheumatoid arthritis; rheumatoid factor; systemic lupus erythematosus; total hip replacement