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  "Package": "CohortConstructor",
  "Title": "Build and Manipulate Study Cohorts Using a Common Data Model",
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  "Description": "Create and manipulate study cohorts in data mapped to the\nObservational Medical Outcomes Partnership Common Data Model.",
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  "Repository": "https://ohdsi.r-universe.dev",
  "Date/Publication": "2026-05-01 08:17:53 UTC",
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  "Author": "Edward Burn [aut, cre] (ORCID: <https://orcid.org/0000-0002-9286-1128>),\nMartí Català [aut] (ORCID: <https://orcid.org/0000-0003-3308-9905>),\nNuria Mercade-Besora [aut] (ORCID:\n<https://orcid.org/0009-0006-7948-3747>),\nMarta Alcalde-Herraiz [aut] (ORCID:\n<https://orcid.org/0009-0002-4405-1814>),\nMike Du [aut] (ORCID: <https://orcid.org/0000-0002-9517-8834>),\nYuchen Guo [aut] (ORCID: <https://orcid.org/0000-0002-0847-4855>),\nXihang Chen [aut] (ORCID: <https://orcid.org/0009-0001-8112-8959>),\nKim Lopez-Guell [aut] (ORCID: <https://orcid.org/0000-0002-8462-8668>),\nElin Rowlands [aut] (ORCID: <https://orcid.org/0009-0005-5166-0417>)",
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    "attrition",
    "benchmarkCohortConstructor",
    "bind",
    "cohortCodelist",
    "cohortCount",
    "collapseCohorts",
    "conceptCohort",
    "copyCohorts",
    "deathCohort",
    "demographicsCohort",
    "endDateColumn",
    "entryAtFirstDate",
    "entryAtLastDate",
    "exitAtDeath",
    "exitAtFirstDate",
    "exitAtLastDate",
    "exitAtObservationEnd",
    "intersectCohorts",
    "matchCohorts",
    "measurementCohort",
    "mockCohortConstructor",
    "padCohortDate",
    "padCohortEnd",
    "padCohortStart",
    "renameCohort",
    "requireAge",
    "requireCohortIntersect",
    "requireConceptIntersect",
    "requireDemographics",
    "requireDuration",
    "requireFutureObservation",
    "requireInDateRange",
    "requireIsEntry",
    "requireIsFirstEntry",
    "requireIsLastEntry",
    "requireMinCohortCount",
    "requirePriorObservation",
    "requireSex",
    "requireTableIntersect",
    "sampleCohorts",
    "settings",
    "startDateColumn",
    "stratifyCohorts",
    "subsetCohorts",
    "tableName",
    "timeWindowCohorts",
    "trimDemographics",
    "trimDuration",
    "trimToDateRange",
    "unionCohorts",
    "yearCohorts"
  ],
  "_datasets": [
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      "name": "benchmarkData",
      "title": "Benchmarking results",
      "object": "benchmarkData",
      "class": [
        "list"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "addCohortTableIndex",
      "title": "Add an index to a cohort table",
      "topics": [
        "addCohortTableIndex"
      ]
    },
    {
      "page": "benchmarkCohortConstructor",
      "title": "Run benchmark of CohortConstructor package",
      "topics": [
        "benchmarkCohortConstructor"
      ]
    },
    {
      "page": "benchmarkData",
      "title": "Benchmarking results",
      "topics": [
        "benchmarkData"
      ]
    },
    {
      "page": "collapseCohorts",
      "title": "Collapse cohort entries using a certain gap to concatenate records.",
      "topics": [
        "collapseCohorts"
      ]
    },
    {
      "page": "conceptCohort",
      "title": "Create cohorts based on a concept set",
      "topics": [
        "conceptCohort"
      ]
    },
    {
      "page": "copyCohorts",
      "title": "Copy a cohort table",
      "topics": [
        "copyCohorts"
      ]
    },
    {
      "page": "deathCohort",
      "title": "Create cohort based on the death table",
      "topics": [
        "deathCohort"
      ]
    },
    {
      "page": "demographicsCohort",
      "title": "Create cohorts based on patient demographics",
      "topics": [
        "demographicsCohort"
      ]
    },
    {
      "page": "entryAtFirstDate",
      "title": "Update cohort start date to be the first date from of a set of column dates",
      "topics": [
        "entryAtFirstDate"
      ]
    },
    {
      "page": "entryAtLastDate",
      "title": "Set cohort start date to the last of a set of column dates",
      "topics": [
        "entryAtLastDate"
      ]
    },
    {
      "page": "exitAtDeath",
      "title": "Set cohort end date to death date",
      "topics": [
        "exitAtDeath"
      ]
    },
    {
      "page": "exitAtFirstDate",
      "title": "Set cohort end date to the first of a set of column dates",
      "topics": [
        "exitAtFirstDate"
      ]
    },
    {
      "page": "exitAtLastDate",
      "title": "Set cohort end date to the last of a set of column dates",
      "topics": [
        "exitAtLastDate"
      ]
    },
    {
      "page": "exitAtObservationEnd",
      "title": "Set cohort end date to end of observation",
      "topics": [
        "exitAtObservationEnd"
      ]
    },
    {
      "page": "intersectCohorts",
      "title": "Generate a combination cohort set between the intersection of different cohorts.",
      "topics": [
        "intersectCohorts"
      ]
    },
    {
      "page": "matchCohorts",
      "title": "Generate a new cohort matched cohort",
      "topics": [
        "matchCohorts"
      ]
    },
    {
      "page": "measurementCohort",
      "title": "Create measurement-based cohorts",
      "topics": [
        "measurementCohort"
      ]
    },
    {
      "page": "mockCohortConstructor",
      "title": "Function to create a mock cdm reference for CohortConstructor",
      "topics": [
        "mockCohortConstructor"
      ]
    },
    {
      "page": "padCohortDate",
      "title": "Set cohort start or cohort end",
      "topics": [
        "padCohortDate"
      ]
    },
    {
      "page": "padCohortEnd",
      "title": "Add days to cohort end",
      "topics": [
        "padCohortEnd"
      ]
    },
    {
      "page": "padCohortStart",
      "title": "Add days to cohort start",
      "topics": [
        "padCohortStart"
      ]
    },
    {
      "page": "renameCohort",
      "title": "Utility function to change the name of a cohort.",
      "topics": [
        "renameCohort"
      ]
    },
    {
      "page": "requireAge",
      "title": "Restrict cohort on age",
      "topics": [
        "requireAge"
      ]
    },
    {
      "page": "requireCohortIntersect",
      "title": "Require cohort subjects are present (or absence) in another cohort",
      "topics": [
        "requireCohortIntersect"
      ]
    },
    {
      "page": "requireConceptIntersect",
      "title": "Require cohort subjects to have (or not have) events of a concept list",
      "topics": [
        "requireConceptIntersect"
      ]
    },
    {
      "page": "requireDemographics",
      "title": "Restrict cohort on patient demographics",
      "topics": [
        "requireDemographics"
      ]
    },
    {
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      "title": "Require cohort entries last for a certain number of days",
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