Anxiety and Depression in Patients with Rheumatoid Arthritis: A Narrative Review of Prevalence, Associated Factors, and Clinical Implications

Abstract

Rheumatoid arthritis (RA) is a chronic autoimmune inflammatory disease that causes persistent joint pain, functional limitation, and disability, and it carries a substantial psychological burden. Anxiety and depression are increasingly recognized as common and clinically important comorbidities of RA that can adversely affect quality of life and disease management. This narrative review synthesizes the published literature on the prevalence of anxiety and depression among patients with RA and examines their relationship with selected demographic and clinical factors. Relevant literature was identified through a non-systematic search of PubMed, Scopus, and Google Scholar, supplemented by hand-searching of reference lists. Reported prevalence varied widely across studies: estimates of anxiety generally ranged from approximately 13.5% to 48% (with outlier estimates as low as 2.4% and as high as 77% reported within one systematic review), and estimates of depressive symptoms or disorders ranged from 14.3% to 87.2%, depending on the population studied, the diagnostic approach used, and the instruments and cut-off thresholds applied. Much of this variability reflects the distinction between structured clinical diagnoses of anxiety or depressive disorders and elevated symptom scores identified through screening instruments such as the Hospital Anxiety and Depression Scale (HADS) and the Patient Health Questionnaire-9 (PHQ-9), which are not equivalent to a clinical diagnosis. Across studies, greater pain, disease activity, functional disability, and poorer quality of life were consistently associated with higher anxiety and depression scores, and female sex and select socioeconomic factors were also frequently, though not universally, associated with psychological burden. Because nearly all of the available evidence is observational and cross-sectional, causal relationships cannot be inferred from these associations. Overall, the evidence supports incorporating routine, appropriately interpreted psychological screening into rheumatological care to enable earlier identification and more holistic, patient-centered management of RA.