{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,20]],"date-time":"2026-02-20T21:49:54Z","timestamp":1771624194652,"version":"3.50.1"},"reference-count":23,"publisher":"Oxford University Press (OUP)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2016,5,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Objective.\u00a0\u00a0To assess the transcultural equivalency of the Spanish version of the Fibromyalgia Rapid Screening Tool (FiRST) and its discriminatory ability in different Latin American samples.<\/jats:p>\n                  <jats:p>Design.\u00a0\u00a0Validation study.<\/jats:p>\n                  <jats:p>Setting.\u00a0\u00a0Departments of Rheumatology in general hospitals and private centers; fibromyalgia unit in a university hospital.<\/jats:p>\n                  <jats:p>Subjects.\u00a0\u00a0350 chronic pain patients from Spain, Argentina, Mexico, Peru, and Ecuador.<\/jats:p>\n                  <jats:p>Methods.\u00a0\u00a0The cultural relevance of the Spanish version of the FiRST was evaluated. The ability of the FiRST as a screening tool for fibromyalgia was assessed by logistic regression analysis. To determine the degree to which potential confounders, such as differences in demographics, pain, affective distress, catastrophizing, and disability, might affect the discriminatory ability, the tool was reassessed by hierarchical multivariate logistic regression.<\/jats:p>\n                  <jats:p>Results.\u00a0\u00a0Slightly different versions of the FiRST were recommended for use in each Latin American subsample. The FiRST showed acceptable criterion validity and was able to discriminate between fibromyalgia and non-fibromyalgia patients even after controlling for the effect of potential confounders. However, low specificities were observed in samples from Spain and Mexico.<\/jats:p>\n                  <jats:p>Conclusions.\u00a0\u00a0The Spanish version of the FiRST may be used as a screening tool for fibromyalgia in several Latin American subsamples, even in those patients with high scores on potential confounders. In Spain and Mexico, the low specificity of the FiRST suggests, however, that it would be best used to support a suspected diagnosis of fibromyalgia, rather than to exclude the diagnosis.<\/jats:p>","DOI":"10.1093\/pm\/pnv065","type":"journal-article","created":{"date-parts":[[2015,12,26]],"date-time":"2015-12-26T20:28:16Z","timestamp":1451161696000},"page":"931-939","source":"Crossref","is-referenced-by-count":2,"title":["The Discriminatory Ability of the Fibromyalgia Rapid Screening Tool (FiRST): An International Study in Spain and Four Latin American Countries"],"prefix":"10.1093","volume":"17","author":[{"given":"Antonio","family":"Collado","sequence":"first","affiliation":[{"name":"**Fibromyalgia Unit, Rheumatology Service, Institut Cl\u00ednic de l\u2019Aparell Locomotor, Hospital Cl\u00ednic de Barcelona, Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xavier","family":"Torres","sequence":"additional","affiliation":[{"name":"\u2020 Fibromyalgia Unit, Psychiatry and Clinical Psychology Service, Institut Cl\u00ednic de Neuroci\u00e8ncies, Hospital Cl\u00ednic de Barcelona, Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Osvaldo D.","family":"Messina","sequence":"additional","affiliation":[{"name":"\u2021 Rheumatology Service, IRO, Buenos Aires, Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luis F.","family":"Vidal","sequence":"additional","affiliation":[{"name":"\u00a7 Rheumatology Service, Centro Diagn\u00f3stico de la Osteoporosis y Enfermedades Reum\u00e1ticas (CEDOR), Lima, Peru"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Patricia","family":"Clark","sequence":"additional","affiliation":[{"name":"\u00b6 Clinical Epidemiology Unit, Hospital Infantil Federico G\u00f3mez, Mexico D.F., Mexico"},{"name":"\u2016 Faculty of Medicine, Universidad Nacional Autonoma De Mexico, Mexico D.F. Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carlos","family":"R\u00edos","sequence":"additional","affiliation":[{"name":"\u2016| Rheumatology Service, Centro De Reumatolog\u00eda y Rehabilitaci\u00f3n, Guayaquil, Ecuador"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Em\u00edlia","family":"Sol\u00e9","sequence":"additional","affiliation":[{"name":"**Fibromyalgia Unit, Rheumatology Service, Institut Cl\u00ednic de l\u2019Aparell Locomotor, Hospital Cl\u00ednic de Barcelona, Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anna","family":"Arias","sequence":"additional","affiliation":[{"name":"**Fibromyalgia Unit, Rheumatology Service, Institut Cl\u00ednic de l\u2019Aparell Locomotor, Hospital Cl\u00ednic de Barcelona, Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Serge","family":"Perrot","sequence":"additional","affiliation":[{"name":"****Centre De La Douleur, H\u00f4pital Cochin, INSERM Unit 987, Universit\u00e9 Paris Descartes, Paris, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Patricia A.","family":"Salomon","sequence":"additional","affiliation":[{"name":"\u2020\u2020 Pfizer, Inc. 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