Frailty in relation to psycho-social factors in elderly patients with rheumatoid arthritis: A cross-sectional mixed qualitative-quantitative study.

Frailty is highly prevalent in RA patients ≥55 years. As frail patients were characterized by symptoms of anxiety both at current age but (recalled) also at age 40, this finding suggests that pre-existing psychiatric symptomatology may confound assessment of frailty.