Objective: To investigate whether levels of anti-cyclic citrullinated peptide antibodies (anti-CCP2) in patients with rheumatoid arthritis (RA) are associated with the co-occurrence of lung diseases.
Methods: A total of 252 RA patients were included in a cross-sectional study. Pulmonary disease was confirmed by high-resolution chest computed tomography scan. Circulating anti-CCP2 were quantified using ELISA. Multivariate logistic regression was conducted to identify independent risk factors for lung disease.
Results: Male sex (OR 3.29, 95% CI 1.59-6.80) and high anti-CCP2 levels (OR 1.49, 95% CI 1.25-1.78) were identified as independent risk factors for lung disease in the RA population.
Conclusion: High anti-CCP2 levels are associated with lung disease in the RA population.
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