{
  "XRKL_L": 2,
  "XRKL_R": 3,
  "XRJSL_L": 1,
  "XRJSM_L": 0,
  "XROSFL_L": 1,
  "XROSFM_L": 0,
  "XROSTL_L": 1,
  "XROSTM_L": 0,
  "XRJSL_R": 1,
  "XRJSM_R": 0,
  "XROSFL_R": 1,
  "XROSFM_R": 0,
  "XROSTL_R": 1,
  "XROSTM_R": 0,
  "XRSCFL_R": 1,
  "AGE": 50,
  "BMI": 25,
  "WEIGHT": 70,
  "RFmaxF": 0.5,
  "REmaxF": 0.6,
  "LFmaxF": 0.7,
  "LEmaxF": 0.8,
  "RFmaxF_BMI": 0.02,
  "REmaxF_BMI": 0.03,
  "LFmaxF_BMI": 0.04,
  "LEmaxF_BMI": 0.05,
  "KOOSPain_R": 78, 
  "KOOSSym_R": 68,
  "KOOSPain_L": 100,
  "KOOSSym_L": 80,
  "KOOSSport": 40,
  "KOOSQOL": 25,
  "RKPain_V00": 78,
  "RKSym_V00": 68,
  "LKPain_V00": 100,
  "LKPain_V01": 89,
  "LKPain_V04": 84,
  "LKSym_V00": 80,
  "KSport_V00": 40,
  "KQOL_V00": 25,
  "RKImg_V00": "Moderate",
  "LKImg_V00": "Mild",
  "key_factors.right_knee_symptoms_year2": [
    {
      "feature": "Osteophytes on baseline left X-ray",
      "impact": -1.08,
      "effect": "worsens symptoms"
    },
    {
      "feature": "Lower KOOS Pain score (more pain)",
      "impact": -1.02,
      "effect": "worsens symptoms"
    },
    {
      "feature": "Lower Quality of Life score",
      "impact": -0.94,
      "effect": "worsens symptoms"
    },
    {
      "feature": "Peak knee-extension torque (below cohort mean)",
      "impact": 1.19,
      "effect": "protective factor"
    }
  ]
}