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. Author manuscript; available in PMC: 2011 Mar 30.
Published in final edited form as: Osteoarthritis Cartilage. 2010 Feb 6;18(5):668–676. doi: 10.1016/j.joca.2009.12.011

Table I.

Demographics and radiographic characterization of the total sample (N = 633)

Men (n = 250) Women (n = 383) Difference between men and women; P-value
Age, years, mean (SD) 61.9 (9.9) 61.6 (9.4) 0.716
BMI, kg/m2, mean (SD) 29.3 (3.9) 29.4 (5.2) 0.743
cKL grade, n (%) 0.715
 0 21 (8) 26 (7)
 1 22 (9) 13 (3)
 2 91 (36) 168 (44)
 3 97 (39) 164 (43)
 4 19 (8) 13 (3)
JSN (OARSI grades 1–3)
 Medial 103 (41) 129 (34) 0.052
 Lateral 45 (18) 81(21) 0.340

SD, standard deviation; calculated, composed from osteophyte and JSN readings; n, number of observations.