How much gloom is in groans? Depression and its determinants in Nigerian patients with knee osteoarthritis: a multi-center cross-sectional study

To determine the prevalence of depression and its determinants among Nigerian patients with knee osteoarthritis (OA). Two hundred and fifty patients satisfying the American College of Rheumatology classification criteria for knee OA were recruited from five centers. Pain was assessed using Western Ontario and McMaster Universities Index (WOMAC) pain subscale, functional status was determined by Steinbrokers criteria, radiographic knee OA was...