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. Author manuscript; available in PMC: 2012 Jul 30.
Published in final edited form as: Ann Intern Med. 2011 Dec 6;155(11):725–732. doi: 10.1059/0003-4819-155-11-201112060-00004

Figure 3.

Figure 3

Age and BMI-adjusted prevalence and 95% Confidence Intervals of Radiographic and Symptomatic knee OA across 3 examination periods between 1983 and 2005. ROA, radiographic osteoarthritis of the knee (Kellgren-Lawrence score ≥ 2); test for trend from 1983–2005 in men (p = 0.82) and women (p = 0.036). SxOA: symptomatic osteoarthritis of the knee (knee pain in the ROA knee); test for trend from 1983–2005 in men (p < 0.001) and women (p = 0.006). Framingham Osteoarthritis Study cohorts between 1983 through 2005 for symptomatic knee osteoarthritis outcome: Original 1983–5 and 1992–5, Offspring and Community sample 2002–5; and for radiographic osteoarthritis outcome: Original cohort 1983–5 and 1992–5, Offspring 1992–95 and 2002–5, and Community sample 2002–5.