Table 1

Characterisation of the study population (healthy reference population (KLG0) and osteoarthritis (OA) population (KLG2 and KLG3) at baseline

Reference group (KLG0)OA participants (KLG2)KLG3
n862728
Age, years55.9 (8.8)56.1 (7.8)59 (8.7)
BMI24.4 (3.3)35.5 (5.0)38 (5.8)
Height, cm165.4 (6.9)163.4 (5.7)162.6 (7.2)
Weight, kg67 (11.5)94.9 (15.1)100.4 (16.3)
WOMAC pain0.8 (2.3)6.7 (3.8)6.1 (3.4)
WOMAC stiffness0.4 (1.0)3.1 (1.7)3.0 (2.1)
WOMAC function3.0 (8.7)23.2 (14.5)21.7 (13.6)
VAS4.4 (11.8)28.7 (23.1)24.2 (21.9)
LS mJSW4.0 (0.6)4.3 (0.7)3.2 (0.8)
  • Values are mean (SD).

  • BMI, body mass index; KLG, Kellgren–Lawrence grade; LS, Lyon–Schuss radiography; mJSW, minimum medial joint space width; VAS, visual analogue scale; WOMAC, Western Ontario MacMaster Universities index.