Table 1

Baseline characteristics of the structural study by group

CharacteristicsPlaceboGlucosamineChondroitinGlucosamine and chondroitinCelecoxibp Value
Subjects (N)131134126129142
Age in years, mean (SD)56.9 (9.8)56.7 (10.5)56.3 (8.8)56.7 (10.7)57.6 (10.6)0.87
Women (%)65.768.773.065.165.50.62
BMI <2525.227.630.227.125.40.97
BMI 25–30: overweight24.419.422.220.222.5
BMI >30: obese50.453.047.652.752.1
KL 2 (%)61.159.766.751.962.00.19
Duration OA symptoms mean (years (SD))10.1 (9.4)9.7 (10.3)9.0 (9.0)10.0 (9.4)10.2 (9.2)0.84
  • BMI, body mass index; KL, Kellgren and Lawrence grade; OA, osteoarthritis.