Comorbidities in osteoarthritis (ComOA): a combined cross-sectional, case-control and cohort study using large electronic health records in four European countries.
Subhashisa SwainAnne KampsJos RunhaarAndrea Dell'IsolaAleksandra TurkiewiczDanielle E RobinsonV StraussChristian MallenChang Fu KuoCarol CouplandMichael DohertyAliya SarmanovaDaniel Prieto AlhambraMartin EnglundSita M A Bierma-ZeinstraWeiya ZhangPublished in: BMJ open (2022)
Research ethics was obtained according to each database requirement. Results will be disseminated through the FOREUM website, scientific meetings, publications and in partnership with patient organisations.