Clinical features and independent predictors in the further development of rheumatoid arthritis in undifferentiated arthritis

详细信息    查看全文

• 作者：Dongying Chen (1)
  Hao Li (1)
  Liuqin Liang (1)
  Youjun Xiao (1)
  Ting Xu (1)
  Qian Qiu (1)
  Fan Lian (1)
  Zhongping Zhan (1)
  Yujin Ye (1)
  Hanshi Xu (1)
  Xiuyan Yang (1)
  
• 关键词：Undifferentiated arthritis ; Rheumatoid arthritis ; Antibodies to cyclic citrullinated peptide ; Rheumatoid factor
• 刊名：Rheumatology International
• 出版年：2013
• 出版时间：November 2013
• 年：2013
• 卷：33
• 期：11
• 页码：2827-2832
• 全文大小：
• 作者单位：Dongying Chen (1)
  Hao Li (1)
  Liuqin Liang (1)
  Youjun Xiao (1)
  Ting Xu (1)
  Qian Qiu (1)
  Fan Lian (1)
  Zhongping Zhan (1)
  Yujin Ye (1)
  Hanshi Xu (1)
  Xiuyan Yang (1)
  
  1. Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Sun Yat-Sen University, No. 58, Zhongshan 2nd Road, Guangzhou, 510080, China
  
• ISSN：1437-160X

文摘

This study aims to investigate the prognosis of undifferentiated arthritis (UA) and to estimate the putative predictors contributing to predict the development of UA into rheumatoid arthritis (RA); thus, it could improve appropriate medical intervention. A retrospective cohort study of 218 patients with an initial diagnosis of UA and 2-year follow-up monitoring was carried out. The baseline information including demographic variables, clinical features, and laboratory data was collected. A logistic regression model was used for the statistical analysis. After 2?years of follow-up, 20.18?% of UA patients evolved into RA, but 33.03?% remained undifferentiated. Meanwhile, 25.23?% went into remission, and 21.56?% developed into other connective tissue diseases. Univariate and multivariate analysis showed that the titer of antibodies to cyclic citrullinated peptide (anti-CCP), tender joint count and duration of morning stiffness were independent predictors for the development of RA. The area under the curve (AUC) of duration of morning stiffness (0.81) was largest, followed by tender joint count (0.74). The AUC of anti-CCP antibodies (0.68) was higher than that of rheumatoid factor of IgM type (IgM-RF) (0.60), and the combination of these two antibodies was significantly higher than each alone (P?<?0.001). In conclusion, UA patients had variable clinical outcomes and prognosis. Only the titer of anti-CCP antibodies, tender joint count, and duration of morning stiffness, instead of IgM-RF, could predict the development of RA. Although the anti-CCP antibody was better than the IgM-RF in predicting RA, a combined detection of them still improved the diagnostic performance.