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. 2005 Oct 11;65(5):623–628. doi: 10.1136/ard.2005.038414

Table 2 Characteristics of study group at baseline.

Study groups
Variable Overall (n = 914) Knee OA: OS progressors (n = 89) Knee OA: OS non‐progressors (n = 44) Knee OA: JSN progressors (n = 51) Knee OA: JSN non‐ progressors (n = 97)
Age (years) 54.1 (6.0) 57.6 (5.3) 56.1 (6.2) 55.2 (5.5) 53.9 (6.5)
BMI (kg/m2) 25.6 (4.2) 27.7 (4.2) 27.8 (5.5) 26.4 (4.6) 26.0 (4.2)

Values are mean (SD).

BMI, body mass index; JSN, joint space narrowing; OA, osteoarthritis; OS, osteophytes.