{
 "inputs": [
  {
   "id": "cohortA",
   "hr": 0.62,
   "lo": 0.3,
   "hi": 1.26,
   "n": 184
  },
  {
   "id": "cohortB",
   "hr": 0.17,
   "lo": 0.04,
   "hi": 0.75,
   "n": 212
  }
 ],
 "fixed_effect": {
  "hr": 0.4828,
  "lo": 0.2534,
  "hi": 0.9196,
  "Q": 2.4154,
  "I2_pct": 58.6
 },
 "random_effect_DL": {
  "tau2": 0.4905,
  "hr": 0.3826,
  "lo": 0.1122,
  "hi": 1.3044
 },
 "claim_checked": {
  "hr": 0.483,
  "lo": 0.253,
  "hi": 0.92,
  "i2": 58.6
 },
 "verdict": "CONFIRM fixed-effect reproduces claim exactly; NOTE random-effects CI crosses 1.0 (result is model-dependent)"
}