{
  "schema_version": "1.0",
  "metadata": {
    "table_id": "SYNTHETIC-COHORT-TABLE-001",
    "title": "Synthetic Aggregate Cohort Summary",
    "purpose": "Demonstrate descriptive aggregate table generation with disclosure controls.",
    "population": "Synthetic cohort only; no real persons or records.",
    "data_cut_date": "2026-07-23",
    "data_level": "synthetic",
    "raw_rows_supplied": false,
    "patient_care_use": false,
    "disclosure_policy": "Synthetic demonstration using an operational minimum cell size and complementary suppression.",
    "human_review": "A data steward and statistician must review any non-synthetic release."
  },
  "intended_use": "Research description only; not for patient care or live clinical use.",
  "prohibited_uses": [
    "No diagnosis, treatment recommendation, dosing, triage, alarm, or autonomous decision.",
    "No row-level or person-level output.",
    "No claim that suppression establishes de-identification or HIPAA compliance."
  ],
  "limitations": [
    "All values are synthetic.",
    "Cell thresholds do not address every linkage or differencing risk.",
    "Descriptive differences do not establish causality or clinical importance."
  ],
  "human_review": {
    "required": true,
    "roles": [
      "statistician",
      "data steward",
      "privacy reviewer"
    ],
    "completed": false
  },
  "governance": {
    "version": "synthetic-v1",
    "owner": "research data governance owner",
    "change_summary": "Initial synthetic aggregate template.",
    "auditability": "Retain aggregate provenance, disclosure settings, code version, and reviewer decisions.",
    "monitoring": "Review new releases for differencing, rare combinations, and changed denominators."
  },
  "groups": [
    {
      "id": "A",
      "label": "Synthetic Group A",
      "n": 120
    },
    {
      "id": "B",
      "label": "Synthetic Group B",
      "n": 120
    }
  ],
  "rows": [
    {
      "label": "Aggregate characteristics",
      "type": "header"
    },
    {
      "label": "Synthetic measure, units",
      "type": "continuous",
      "values": {
        "A": {
          "n": 120,
          "missing": 0,
          "summary": "median 52; quartiles 44 to 61"
        },
        "B": {
          "n": 120,
          "missing": 0,
          "summary": "median 50; quartiles 42 to 60"
        }
      }
    },
    {
      "label": "Synthetic category",
      "type": "header"
    },
    {
      "label": "Synthetic category",
      "level": "Category 1",
      "type": "categorical",
      "values": {
        "A": {
          "count": 54,
          "denominator": 120,
          "missing": 0
        },
        "B": {
          "count": 63,
          "denominator": 120,
          "missing": 0
        }
      }
    },
    {
      "label": "Synthetic category",
      "level": "Rare synthetic category",
      "type": "categorical",
      "values": {
        "A": {
          "count": 7,
          "denominator": 120,
          "missing": 0
        },
        "B": {
          "count": 15,
          "denominator": 120,
          "missing": 0
        }
      }
    }
  ]
}