Objectives
The current study intended to explore the prevalence and independent risk factors for anxiety and depression in rheumatoid arthritis (RA) patients and to assess the consistency between the hospital anxiety and depression scale (HADS) and Zung’s self-rating anxiety scale/depression scale (SAS/SDS).
Methods
In total, 160 RA patients and 60 healthy controls (HCs) were consecutively enrolled, and HADS and SAS/SDS scales were completed.
Results
The HADS-defined anxiety rate, HADS-defined depression rate, SAS-defined anxiety rate, and SDS-defined depression rate were 36.9%, 36.3%, 29.4%, and 29.4% in RA patients, which were all greatly higher in RA patients than in HCs (all p < 0.001). A relatively high consistency was observed between HADS-defined anxiety and SAS-defined anxiety (Kappa = 0.551, p < 0.001), as well as between HADS-defined depression and SDS-defined depression (Kappa = 0.563, p < 0.001) in RA patients. Interestingly, screened by multivariate logistic regression analyses, single/divorced/widowed marital status, swollen joint count, disease duration, erythrocyte sedimentation rate, physician's global assessment (PhGA), and 28-joint disease activity score (DAS28) were independently correlated with HADS-defined or SAS-defined anxiety risk in RA patients; meanwhile, female gender, single/divorced/widowed marital status, rural location, disease duration, PhGA, and DAS28 were independently associated with HADS-defined or SDS-defined depression risk in RA patients.
Conclusion
Anxiety and depression are highly prevalent in RA patients and are independently correlated with single/divorced/widowed marital status and higher disease activity. In addition, the HADS scale presents a high consistency with the SAS/SDS scale with many fewer questions, which may be more suitable for RA long-term assessment.
Lay Summary
What does this mean for patients?
People with rheumatoid arthritis (RA) also frequently have mental health conditions such as anxiety and depression. We wanted to see what percentage of people with RA have mental health conditions, as well as which aspects of RA affect the occurrence of these mental health conditions. Finally, we wanted to compare two questionnaires used to diagnose mental health conditions—the hospital anxiety and depression scale and Zung’s self-rating anxiety scale/depressions scale. In this study, we investigated 160 people with RA and 60 healthy people. We found that mental health conditions are common in people with RA; between 29.4% and 36.9% of people in our study had anxiety, and between 29.4% and 36.3% had depression. These rates are higher than those seen in healthy people. Many factors could affect the occurrence of mental health conditions, including marital status, joint status, disease duration, and inflammation status. The two questionnaires used produced consistent results when evaluating patients’ mental health conditions. However, the hospital anxiety and depression scale has fewer questions and may therefore be more suitable for RA long-term assessment.