Clinical Focus ›› 2021, Vol. 36 ›› Issue (3): 246-250.doi: 10.3969/j.issn.1004-583X.2021.03.012

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Analysis of clinical characteristics and related factors of rheumatoid arthritis complicated with malignant tumors in patients

Liu Ziyi, Wang Jibo()   

  1. Department of Rheumatology and Immunology, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
  • Received:2020-12-06 Online:2021-03-20 Published:2021-03-29
  • Contact: Wang Jibo E-mail:wangjibo2005@126.com

Abstract:

Objective To investigate the clinical characteristics and related factors of rheumatoid arthritis(RA) complicated with malignant tumor inpatients. Methods Clinical data of patients with RA complicated with malignant tumor admitted to the Affiliated Hospital of Qingdao University from February 2013 to August 2019 were retrospectively analyzed. Complete clinical data of a total of 217 patients with RA complicated with malignant tumors were collected(tumor group), and 308 patients with RA but without tumors during the same period were randomly selected as controls(control group). Results The number of women/men, RA duration, and smokers in tumor group were higher than those in control group(P<0.05), while the utilization rate of steroid hormone and traditional anti-rheumatic drugs in tumor group was lower than that in control group(P<0.05). The course of RA, smoking history and gender difference were the independent risk factors of RA complicated with malignant tumor(P<0.05), while the treatment history of methotrexate or leflunomide was the independent protective factor(P<0.05). Conclusion RA patients have an increased risk of malignancy. RA patients with long course of disease, females and smoking history should be alert to the possibility of cancer. Methotrexate or leflunomide can reduce the risk of cancer.

Key words: arthritis, rheumatoid, neoplasms, antirheumatic agents

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