David has systemic-onset juvenile idiopathic arthritis. He was 28 years old at the time of the interview and was the oldest to be interviewed. David was diagnosed in 1985. Most of the treatments discussed by other interviewees were not available to David when he was young. It is rare to see young people with arthritis who have medical histories as complicated as David's.

David was diagnosed in 2011 as having ankylosing spondylitis (AS). To help control his condition he takes etoricoxib, sulfasalazine, prednisolone and lansoprazole.