ARTICLE IN PRESS G Model Reumatol Clin. 2019;xxx(xx):xxx–xxx ww w.reumatologiaclinica.org Original Article Quality standard for the management of patients with psoriatic arthritis: QUANTUM project  Jesús Sanz Sanz, a,* Emma Beltrán, b M. Consuelo Díaz-Miguel Pérez, c Cristina Fernández-Carballido, d Eva Galíndez, e Carlos García Porrua, f Jordi Gratacós, g Julio Medina, h Rubén Queiro, i Julio Ramírez, j Delia Reina, k Carlos Rodríguez Lozano, l Fernando José Rodríguez Martínez, m Esteban Rubio, n Raúl Veroz o a Servicio de Reumatología, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain b Servicio de Reumatología, Hospital del Mar, Barcelona, Spain c Servicio de Reumatología, Hospital Universitario Ramón y Cajal, Madrid, Spain d Servicio de Reumatología, Hospital General Universitario de Elda, Elda, Alicante, Spain e Servicio de Reumatología, Hospital de Basurto, Bilbao, Spain f Servicio de Reumatología, Hospital Universitario Lucus Augusti, Lugo, Spain g Servicio de Reumatología, Hospital Universitario Parc Taulí de Sabadell, I3PT, Sabadell, Barcelona, Spain h Servicio de Reumatología, Hospital Clínico Universitario de Valladolid, Valladolid, Spain i Servicio de Reumatología, Hospital Universitario Central de Asturias, SESPA, Oviedo, Spain j Servicio de Reumatología, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain k Servicio de Reumatología, Hospital de Sant Joan Despí Moisès Broggi, Sant Joan Despí, Barcelona, Spain l Servicio de Reumatología, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, Spain m Servicio de Reumatología, Hospital General Universitario Santa Lucía, Cartagena, Spain n Servicio de Reumatología, Hospital Universitario Virgen del Rocío, Sevilla, Spain o Servicio de Reumatología, Hospital de Mérida, Mérida, Badajoz, Spain a r t i c l e i n f o Article history: Received 4 April 2018 Accepted 26 June 2018 Available online xxx Keywords: Psoriatic arthritis Multidisciplinary Quality standard a b s t r a c t Objective: To generate a quality standard for the management of patients with psoriatic arthritis (PsA). Methods: We employed qualitative methodology that included: (1) Two focus groups (one with patients with PsA and another with non-rheumatologist specialists involved in the care of PsA patients); (2) A narrative literature review of published documents related to the quality of care in PsA; (3) A nominal group meeting in which 15 expert rheumatologists generated and reached a consensus on a series of quality criteria, as well as formulas or quantifiable objective measures to evaluate them; (4) The Delphi method to establish the feasibility, priority and agreement with the quality criteria; (5) A final generation of standards of care and their attributes. A descriptive analysis of the results was carried out. Results: A total of 59 standards of care was generated, 18 of mandatory compliance, grouped into 4 blocks according to specific objectives: (1) early diagnosis (n = 6); (2) optimising the management of the disease (n = 26); (3) multidisciplinary collaboration (n = 9); (4) monitoring improvement (n = 18). To assess compliance with these standards of care, in many cases, the medical records will be reviewed. Other sources will be the records of the service and hospital and bibliographic databases. Regarding the level of compliance, for some of the standards of care this is yes/no; for others, compliance ranges from 50% to 100% and, in this range, in many cases, compliance was 80%. Conclusions: This set of standards of care should help improve quality of care in PsA patients. © 2019 Published by Elsevier Espa ˜ na, S.L.U.  Please cite this article as: Sanz Sanz J, Beltrán E, Díaz-Miguel Pérez MC, Fernández-Carballido C, Galíndez E, García Porrua C, et al. Norma de calidad para el manejo del paciente con artritis psoriásica: proyecto QUANTUM. Reumatol Clin. 2019. https://doi.org/10.1016/j.reuma.2018.06.011 * Corresponding author. E-mail address: jesussanzsanz4@gmail.com (J. Sanz Sanz). 2173-5743/© 2019 Published by Elsevier Espa ˜ na, S.L.U. REUMAE-1246; No. of Pages 13