{
  "model_type": "LinearRegression",
  "r2_score": 0.9447018788305651,
  "mae": 2.260484328455685,
  "rmse": 2.8735817366968477,
  "n_features": 5,
  "features": [
    "tasks_completed_last_week",
    "patient_activity_level",
    "num_alerts_last_week",
    "cognitive_score",
    "sleep_hours_avg"
  ],
  "training_samples": 1468,
  "test_samples": 368
}