Table 1 Demographic and clinical characteristics of patients with knee osteoarthritis (n = 204)

Age, mean ± SD years

60.2 (10.5)

Body Mass Index, mean ± SD kg/m²

32.8 (7.2)

Self-reported duration of knee pain, median (25^th, 75^th percentile) years

5.0 (3.0, 10.0)

Tibiofemoral Kellgren/Lawrence grade ≥ 2

183 (92.4)

Female Sex

143 (70.1)

Race

 White

107 (52.7)

 Black

72 (35.5)

 Other

24 (11.8)

Married

52 (25.5)

Greater than high school education

170 (83.3)