{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T13:23:20Z","timestamp":1760189000498,"version":"3.33.0"},"reference-count":22,"publisher":"Elsevier BV","issue":"3","license":[{"start":{"date-parts":[[1970,5,1]],"date-time":"1970-05-01T00:00:00Z","timestamp":10368000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[1970,5,1]],"date-time":"1970-05-01T00:00:00Z","timestamp":10368000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["ard.eular.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Annals of the Rheumatic Diseases"],"published-print":{"date-parts":[[1970,5]]},"DOI":"10.1136\/ard.29.3.254","type":"journal-article","created":{"date-parts":[[2008,7,28]],"date-time":"2008-07-28T23:49:46Z","timestamp":1217288986000},"page":"254-260","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":67,"title":["Significance of positive tests for rheumatoid factor in the prognosis of rheumatoid arthritis. A follow-up study."],"prefix":"10.1016","volume":"29","author":[{"given":"A","family":"Cats","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H.M","family":"Hazevoet","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"ref_1","first-page":"133","article-title":"Ann. rheum","volume":"14","author":"DUTHIE, J.J.R.; THOMPSON, M.; WEIR, M.M.; FLETCHER, W.B.","year":"1955","unstructured":"DUTHIE, J. J. R., THOMPSON, M., WEIR, M. M., AND FLETCHER, W. B. (1955) Ann. rheum. Dis., 14, 133 (Medical and social aspects of the treatment of rheumatoid arthritis with special reference to factors affecting prognosis).","journal-title":"Dis; Medical and social aspects of the treatment of rheumatoid arthritis with special reference to factors affecting prognosis"},{"key":"ref_2","first-page":"411","volume":"16","author":"BROWN, P.E.; KNOX, J.D.E.; THOMPSON, M.","year":"1957","unstructured":"-, BROWN, P. E., KNOX, J. D. E., AND THOMPSON, M. (1957) Ibid., 16, 411 (Course and prognosis in rheumatoid arthritis).","journal-title":"Ibid"},{"issue":"193","key":"ref_3","article-title":"(Course and prognosis in rheumatoid arthritis. A further report)","volume":"23","author":"TRUELOVE, L.H.; BARAGAR, F.D.; LAwIRE, A.J.","year":"1964","unstructured":",, TRUELOVE, L. H., BARAGAR, F. D., AND LAwIRE, A. J. (1964) Ibid., 23, 193 (Course and prognosis in rheumatoid arthritis. A further report).","journal-title":"Ibid"},{"key":"ref_4","first-page":"42","article-title":"In 'Progress in Clinical Rheumatology'","author":"HILL, A.; GREENBURY, C.L.","year":"1965","unstructured":"HILL, A., AND GREENBURY, C. L. (1965) In 'Progress in Clinical Rheumatology', ed. A. St. J. Dixon, p. 42. Churchill, London."},{"key":"ref_5","first-page":"850","article-title":"Brit","volume":"1","author":"KELLGREN, J.H.","year":"1957","unstructured":"KELLGREN, J. H. (1957) Brit. med. J., 1, 850 (Note on the sheep-cell agglutination test).","journal-title":"med. J"},{"key":"ref_6","first-page":"24","article-title":"Immunology, 10, 87 (Characterization of two different agglutinators in the latex fixation test, occurring in normal human sera)","volume":"18","author":"KLEIN, F.; VALKENBURG, H.A.; ZWET, V.A.N.; L., T.; LAFEBER, G.J.M.","year":"1966","unstructured":"KLEIN, F., VALKENBURG, H. A., VAN ZWET, T. L., AND LAFEBER, G. J. M. (1966) Immunology, 10, 87 (Characterization of two different agglutinators in the latex fixation test, occurring in normal human sera). OTrEN, H. A., AND WESTENDORP BOERMA, F. (1959) Ann. rheum. Dis., 18, 24 (Significance of the","journal-title":"Ann. rheum. Dis"},{"key":"ref_7","first-page":"124","article-title":"(The general management of rheumatoid arthritis). - AND FARRINGTON, E","volume":"141","author":"RAGAN, C.","year":"1949","unstructured":"RAGAN, C. (1949) J. Amer. med. Ass., 141, 124 (The general management of rheumatoid arthritis). - AND FARRINGTON, E. (1962) Ibid., 181, 663 (The clinical features of rheumatoid arthritis: prognostic indices).","journal-title":"J. Amer. med. Ass; The clinical features of rheumatoid arthritis: prognostic indices"},{"key":"ref_8","first-page":"375","article-title":"In 'Modern Trends in Rheumatology-I'","author":"REED, W.B.; WRIGHT, V.","year":"1966","unstructured":"REED, W. B., AND WRIGHT, V. (1966) In 'Modern Trends in Rheumatology-I', ed. A. G. S. Hill, p. 375. Butterworths, London."},{"issue":"49","key":"ref_9","first-page":"108","article-title":"Ann. rheum","volume":"18","author":"ROPES, M.W.; BENNETT, G.A.; COBB, S.; JACOX, R.; JESSAR, R.A.","year":"1959","unstructured":"ROPES, M. W., BENNETT, G. A., COBB, S., JACOX, R., AND JESSAR, R. A. (1959) Ann. rheum. Dis., 18, 49 (1958 Revision of diagnostic criteria for rheumatoid arthritis). SHORT, C. L., BAUER, W., AND REYNOLDS, W. E. (1957a). In 'Rheumatoid Arthritis. A Definition of the Disease and a Clinical Description Based on a Numerical Study of 293 Patients and Controls', p. 108. Harvard University Press, Cambridge, Mass.","journal-title":"Dis; Revision of diagnostic criteria for rheumatoid arthritis"},{"key":"ref_10","first-page":"350","author":"b","unstructured":", (1957b). Ibid., p. 350.","journal-title":"Ibid"},{"key":"ref_11","article-title":"Acta rheum","volume":"9","author":"SIEVERS, K.","year":"1965","unstructured":"SIEVERS, K. (1965) Acta rheum. scand., Suppl. 9, 'The rheumatoid factor in definite rheumatoid arthritis'.","journal-title":"scand; The rheumatoid factor in definite rheumatoid arthritis"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"659","DOI":"10.1001\/jama.1949.02900430001001","volume":"140","author":"STEINBROCKER, O.; TRAEGER, C.H.; BATrERMAN, R.C.","year":"1949","unstructured":"STEINBROCKER, O., TRAEGER, C. H., AND BATrERMAN, R. C. (1949). J. Amer. med. Ass., 140, 659 (Therapeutic criteria in rheumatoid arthritis).","journal-title":"J. Amer. med. Ass"},{"key":"ref_13","first-page":"330","article-title":"In 'The Epidemiology of Chronic Rheumatism'","volume":"1","author":"VALKENBURG, H.A.","year":"1963","unstructured":"VALKENBURG, H. A. (1963a). In 'The Epidemiology of Chronic Rheumatism', ed. M. R. Jeffrey and J. Ball, under the direction of J. H. Kellgren, vol. 1, p. 330. Blackwell Scientific Publications, Oxford.","journal-title":"J. H. Kellgren; under the direction of"},{"key":"ref_14","first-page":"337","volume":"Idem,","author":"VALKENBURG, H.A.","year":"1963","unstructured":"VALKENBURG, H. A. (1963b). Idem, p. 337."},{"article-title":"Des nodules rhumatoides etaient plus souvent vus dans le groupe sero-positif, et chez les hommes seropositifs la gravit6 des changements radiologiques des petites articulations etait plus marqu6e","volume-title":"plus tard le groupe sero-positif etait dans un plus mauvais.etat que le groupe sero-n6gatif quant au nombre","key":"ref_15","unstructured":"Des nodules rhumatoides etaient plus souvent vus dans le groupe sero-positif, et chez les hommes seropositifs la gravit6 des changements radiologiques des petites articulations etait plus marqu6e. 7 a 8 annees plus tard le groupe sero-positif etait dans un plus mauvais.etat que le groupe sero-n6gatif quant au nombre de"},{"key":"ref_16","article-title":"Los n6dulos reumatoides eran mas frecuentes en el grupo seropositivo, y en los hombres seropositivos era mayor la severidad de las alteraciones radiol6gicas en las articulaciones pequenias. Siete a ocho afnos mas tarde, los seropositivos se hallaban en peor condici6n que los seronegativos con respecto","volume-title":"a la vitesse de sedimentation, au pourcentage d'h6moglobine, a la competence fonctionelle, aux 6rosions des petites et des grandes articulations, a la pr6sence des nodules, et au nombre des articulations affect6es","author":"al nfumero de la; pauta criteres A. R. A","unstructured":"Los n6dulos reumatoides eran mas frecuentes en el grupo seropositivo, y en los hombres seropositivos era mayor la severidad de las alteraciones radiol6gicas en las articulaciones pequenias. Siete a ocho afnos mas tarde, los seropositivos se hallaban en peor condici6n que los seronegativos con respecto al nfumero de la pauta criteres A.R.A., a la vitesse de sedimentation, au pourcentage d'h6moglobine, a la competence fonctionelle, aux 6rosions des petites et des grandes articulations, a la pr6sence des nodules, et au nombre des articulations affect6es."},{"key":"ref_17","article-title":"Pendant la p6riode de surveillance les changements suivants ont et6 observ6s: Hommes et femmes sero-negatifs: Des am6liorations au nombre des criteres","volume-title":"la competence fonctionelle, a la vitesse de s6dimentation, au pourcentage d'h6moglobine","volume":"i","author":"A, A.R.","unstructured":"Pendant la p6riode de surveillance les changements suivants ont et6 observ6s: Hommes et femmes sero-negatifs: Des am6liorations au nombre des criteres A.R.A., i la competence fonctionelle, a la vitesse de s6dimentation, au pourcentage d'h6moglobine."},{"key":"ref_18","unstructured":"Dans cette 6tude le debut de la polyarthrite seron6gative avait lieu chez les hommes, en moyenne 8 ann6es plus tard que chez les femmes.","article-title":"Dans cette 6tude le debut de la polyarthrite seron6gative avait lieu chez les hommes, en moyenne 8 ann6es plus tard que chez les femmes"},{"key":"ref_19","unstructured":"En raison de la difference entre le pronostic de la polyarthrite sero-positive et s6ro-n6gative, les resultats des enquetes ou des essais cliniques devraient etre evalues s6par6ment pour les malades s6ro-n6gatifs et ceux s6ropositifs.","article-title":"En raison de la difference entre le pronostic de la polyarthrite sero-positive et s6ro-n6gative, les resultats des enquetes ou des essais cliniques devraient etre evalues s6par6ment pour les malades s6ro-n6gatifs et ceux s6ropositifs"},{"key":"ref_20","article-title":"Durante el periodo complementario se observaron los siguientes cambois: Seronegativo (hombres y muj6res): Mejoras en el ntumero de la pauta","volume-title":"en la capacidad funcional, velocidad de sedimentaci6n de eritrocitos and Hb por ciento","author":"A, A.R.","unstructured":"Durante el periodo complementario se observaron los siguientes cambois: Seronegativo (hombres y muj6res): Mejoras en el ntumero de la pauta A.R.A., en la capacidad funcional, velocidad de sedimentaci6n de eritrocitos and Hb por ciento."},{"key":"ref_21","unstructured":"En este grupo la poliartritis seronegativa principi6 en los hombres un promedio de ocho anios mas tarde que en las mujeres.","article-title":"En este grupo la poliartritis seronegativa principi6 en los hombres un promedio de ocho anios mas tarde que en las mujeres"},{"key":"ref_22","unstructured":"En vista de la diferencia en la prognosis entre poliartritis seropositiva y seronegativa, los resultados de estudios o pruebas clinicas deben ser evaluados separadamente para pacientes seronegativos y seropositivos.","article-title":"En vista de la diferencia en la prognosis entre poliartritis seropositiva y seronegativa, los resultados de estudios o pruebas clinicas deben ser evaluados separadamente para pacientes seronegativos y seropositivos"}],"container-title":["Annals of the Rheumatic Diseases"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0003496724418724?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0003496724418724?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/ard.29.3.254","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,1,22]],"date-time":"2025-01-22T12:24:20Z","timestamp":1737548660000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0003496724418724"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1970,5]]},"references-count":22,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1970,5]]}},"alternative-id":["S0003496724418724"],"URL":"https:\/\/doi.org\/10.1136\/ard.29.3.254","relation":{},"ISSN":["0003-4967"],"issn-type":[{"type":"print","value":"0003-4967"}],"subject":[],"published":{"date-parts":[[1970,5]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Significance of positive tests for rheumatoid factor in the prognosis of rheumatoid arthritis. A follow-up study.","name":"articletitle","label":"Article Title"},{"value":"Annals of the Rheumatic Diseases","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1136\/ard.29.3.254","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 1970 \u00a9 THE AUTHORS. Published by Elsevier B.V. on behalf of European Alliance of Associations for Rheumatology, EULAR. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.","name":"copyright","label":"Copyright"}]}}