期刊
MODERN RHEUMATOLOGY
卷 29, 期 1, 页码 105-112出版社
OXFORD UNIV PRESS
DOI: 10.1080/14397595.2018.1452334
关键词
Rheumatoid arthritis; Mycobacterium avium complex pulmonary disease; lymphocytopenia; low BMI
类别
资金
- Grants-in-Aid for Scientific Research [17K01886] Funding Source: KAKEN
Objectives: Patients with rheumatoid arthritis (RA) are at an increased risk of Mycobacterium avium complex pulmonary disease (MAC-PD). We aimed to identify factors associated with MAC-PD in RA patients, and investigate their clinical significance for diagnosis of this disease. Methods: We examined 396 patients with RA for the presence of MAC-PD, using the criteria of the American Thoracic Society and conducted three years of follow-up on these patients. Multivariate logistic analyses were employed for selecting factors associated with MAC-PD. We developed a point system based on these factors which we call MAC-PD score to improve diagnosis of MAC-PD. Results: During this study, 14 out of 396 patients were newly diagnosed with MAC-PD. Multivariate analyses revealed body mass index (BMI) <18.0 kg/m(2) and lymphocyte count <1500/mu l were associated with MAC-PD in RA patients. Points were assigned to them and totalled to provide the MAC-PD score. Among 20 patients with high-resolution computer tomography images consistent with MAC-PD, the scores were significantly higher in 14 patients with MAC-PD than those in six patients without MAC-PD. Conclusion: Using these data, in the forms of the MAC-PD score, could help to identify patients who should be considered for bronchoscopy more selectively.
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