Association between Rheumatoid Arthritis and other autoimmune diseases

• Published in: Revista argentina de reumatologiá (Buenos Aires, Argentina : 1990) pp. 18 - 23
• Main Authors: Serrano, Eliana Rebeca, Pérez, Silvana Karina, Bande, Juan Manuel, Sosa, Julia, Kohan, María Paula, Santa Cruz, María Julia, Medina, María Alejandra, Klajn, Diana Silvia, Ángel, José, Benegas, Mariana, Saturanski, Etel, Quintana, Rosana, Pons-Estel, Bernardo, Pereira, Dora, Dellepiane, Analía, García Salinas, Rodrigo, Correa, María de los Ángeles, Citera, Gustavo, Sacnum, Mónica, Hartvig, Claudia, Demarchi, Julia, Bartel, Guillermo, Gómez, Andrea, Kirmayr, Karin, Velasco Zamora, José Luis, Chichotky, Yamila, Salazar, María Marta, Rillo, Oscar, Bohr, Analía, Pérez Dávila, Adriana, Najera, Hugo, Chuquimia, Jearmany René, Secco, Anastasia, Martínez, Alejandro, Buschiazzo, Emilio, Juárez, Vicente, Raiti, Laura, Cruzat, Vanesa, Smichowski, Andrea, Casado, Gustavo, Zelaya, David, Álvarez, Damaris, Kerzberg, Eduardo Mario, Rosa, Javier, García, María Victoria, Retamozo, Cinthya, Costi, Ana Carolina, Pena, Claudia, Maldonado Ficco, Hernán, Papasidero, Silvia Beatriz
• Format: Journal Article
• Language: Spanish
• Published: 01.06.2020
• ISSN: 0327-4411; 2362-3675
• DOI: 10.47196/rar.v31i2.404

Objectives: To determine the frequency of autoimmune diseases (AID) in Rheumatoid Arthritis (RA) patients and to compare this frequency between patients with and without RA or other rheumatologic AID. Methods: Multicenter, observational, analytical, retrospective study. Consecutive patients with diagnosis of RA (ACR/EULAR 2010) were included. Patients with initial diagnosis of primary ostearthritis (OA) were used as control group. Results: A total of 1549 patients were included: 831 RA (84% women, mean age 55.2 [±13.6]) and 718 OA (82% women, mean age 67 ([± 11.1]). The frequency of AID in the RA group was 22% (n=183). RA patients showed higher frequency of rheumatologic AID (9.4 vs 3.3%, p< 0.001), and lower frequency of non-rheumatologic AID than OA patients (15.3 vs 20.5%, p= 0.007). The most prevalent rheumatic AID was Sjögren’s Syndrome, which was more fre-quent in the AR group (87.2 vs 29.2%, p<0.001). The frequency of rheumatologic AID in RA patients was higher in those with erosive RA (11 vs 6.8%, p=0.048). Conclusion: The frequency of AID in RA patients was 22%. Rheumatologic AID were more frequent in RA patients, whereas non-rheumatologic AID prevailed in OA patients.