Abstract Introduction/objectives Psychological stress impacts rheumatoid arthritis (RA) disease activity, and California’s response to the COVID-19 pandemic created historically significant stressors for patients. This study examined factors associated with changes in RA flares during the pandemic. Methods In this cross-sectional COVID-19 RA study, patients with RA ICD-9/10 codes were emailed a questionnaire in July/November of 2020 containing questions on RA disease activity, Routine Assessment of Patient Index Data 3 (RAPID3), flare number and frequency, RA Flare Questionnaire (RA-FQ), Perceived Stress Scale 4 (PSS-4), stressors, and demographics. Age, anti-cyclic citrullinated antibody, and rheumatoid factor were extracted from medical records. Analyses examined associations between current flare status, number of flares, and changes in flare frequency with PSS-4 and stressors. Results Of 1138 respondents (22.6% response rate), 69.3% reported at least one RA flare, 43% multiple flares, and 36.3% currently experiencing a flare. Compared to pre-pandemic levels, 36.3% noted more frequent flares, while 9.2% reported fewer. Increased stress was noted across all flare groups. Regression analyses revealed significant associations between current flare and PSS-4 scores, financial stress, and sleep quality (all p < 0.03). A higher number of flares were significantly associated with PSS-4, financial stress, and home stress ( p < 0.03). Increased flare frequency was associated with PSS-4, apprehension, panic, financial stress, and sleep quality (all p < 0.05). Asian race was negatively associated with the number of flares and flare frequency (both p < 0.05). Conclusions This study reports a link between stress and RA flares during the pandemic, underscoring the need for targeted strategies to manage RA patients at risk of flare during heightened stress. Key Points • During the COVID-19 pandemic, patient-reported RA flares increased significantly compared to pre-pandemic levels, signifying there may be value in reevaluating RA management strategies during periods of heightened stress. • Financial stress, home stress, and poor sleep were major pandemic stressors linked to current and increased frequency of RA flares. • RA patients not in remission may be more susceptible to disease exacerbations while under stress, as those experiencing flares during the pandemic were less likely to have been in remission beforehand. • Asian race was associated with fewer RA flares and reduced flare frequency, suggesting racial and ethnic differences may influence flare patterns.
Morris et al. (2026) studied this question.