Table 1

Baseline characteristics of the obese cohort

CharacteristicUnderwent cartilage thickness assessmentUnderwent dGEMRIC assessment
Number of subjects7855
Age (years)51.7±11.850.9±12.4
Female (%)75%67%
BMI (kg/m2)39.9±5.839.6±5.2
Knee osteoarthritis (ACR) (%)32%26%
Surgery for weight loss (%)36%44%
Weight loss (12 months) (%)9.3±11.99.1±10.0
Medial tibial cartilage thickness (mm)1.40±0.21NA
Medial femoral cartilage thickness (mm)1.75±0.34NA
Lateral tibial cartilage thickness (mm)1.93±0.32NA
Lateral femoral cartilage thickness (mm)1.95±0.36NA
Medial dGEMRIC index (ms)NA545±84
Lateral dGEMRIC index (ms)NA539±91
  • Data shown are mean±SD or percentage.

  • ACR, American College of Rheumatology; BMI, body mass index; dGEMRIC, delayed gadolinium-enhanced MRI of cartilage.