{
  "id-zmienna": 934,
  "nazwa": "Live births legitimate",
  "nazwa-skrocona": "Live births legitimate",
  "tagi": [
    {
      "id-tag": 324,
      "nazwa-tag": "children"
    },
    {
      "id-tag": 718,
      "nazwa-tag": "marriages"
    },
    {
      "id-tag": 857,
      "nazwa-tag": "newborn"
    }
  ],
  "pojecia": [
    {
      "id-pojecie": 4311,
      "nazwa-pojecie": "Live birth legitimate",
      "definicja": "<p>Live birth that occurred within the marriage duration or within 300 days of its termination or cancellation, as well as birth that occurred before the marriage, on condition that the child was registered after or at the moment of marriage registration (in the Civil Status Office).</p>",
      "data-poczatku-pojecie": "1999-07-01",
      "data-konca-pojecie": "9999-12-31"
    }
  ],
  "wyjasnienia-metodologiczne": {
    "notki": []
  },
  "przekroje": [
    {
      "id-przekroj": 461,
      "nazwa-przekroj": "Poland, voivodships, powiats; Type of locality; Birth order; Duration of parent's marriage; Age of mother",
      "szereg-czasowy": "2000 - 2025",
      "id-czestotliwosc": 1,
      "nazwa-czestotliwosc": "Year",
      "aktualizacja-ostatnia": "2026-07-06",
      "aktualizacja-kolejna": "2027-06-30"
    },
    {
      "id-przekroj": 481,
      "nazwa-przekroj": "Poland, macroregions, regions, subregions; Type of locality; Birth order; Duration of parent's marriage; Age of mother",
      "szereg-czasowy": "2000 - 2025",
      "id-czestotliwosc": 1,
      "nazwa-czestotliwosc": "Year",
      "aktualizacja-ostatnia": "2026-07-06",
      "aktualizacja-kolejna": "2027-06-30"
    }
  ],
  "zestawy": [
    {
      "id-zestaw": 639,
      "nazwa-zestaw": "Register of civil status",
      "id-gestor": 754,
      "nazwa-gestor": "Ministry of Digital Affairs "
    },
    {
      "id-zestaw": 713,
      "nazwa-zestaw": "PESEL register",
      "id-gestor": 754,
      "nazwa-gestor": "Ministry of Digital Affairs "
    }
  ],
  "badania": [
    {
      "id-badanie": 35,
      "symbol-badanie": "1.21.01",
      "temat-badanie": "Births. Fertility"
    }
  ],
  "akty-prawne": [
    {}
  ],
  "jednostki": [
    {
      "id-jednostka": 593,
      "nazwa-jednostki": "Demographic Research Department"
    }
  ]
}