requireConceptIntersect {CohortConstructor}

Require cohort subjects to have (or not have) events of a concept list

Description

requireConceptIntersect() filters a cohort table based on a requirement that an individual is seen (or not seen) to have events related to a concept list in some time window around an index date.

Usage

requireConceptIntersect(
  cohort,
  conceptSet,
  window,
  intersections = c(1, Inf),
  cohortId = NULL,
  indexDate = "cohort_start_date",
  targetStartDate = "event_start_date",
  targetEndDate = "event_end_date",
  censorDate = NULL,
  name = tableName(cohort)
)

Arguments

cohort

A cohort table in a cdm reference.

conceptSet

Concept set list.

window

Window to consider events over.

intersections

A range indicating number of intersections for criteria to be fulfilled. If a single number is passed, the number of intersections must match this.

cohortId

IDs of the cohorts to modify. If NULL, all cohorts will be used; otherwise, only the specified cohorts will be modified, and the rest will remain unchanged..

indexDate

Variable in x that contains the date to compute the intersection.

targetStartDate

Date of reference in cohort table, either for start (in overlap) or on its own (for incidence).

targetEndDate

Date of reference in cohort table, either for end (overlap) or NULL (if incidence).

censorDate

Whether to censor overlap events at a specific date or a column date of x.

name

Name of the new cohort with the future observation restriction.

Value

Cohort table with only those with the events in the concept list kept (or those without the event if negate = TRUE)

Examples

library(CohortConstructor)
cdm <- mockCohortConstructor(conditionOccurrence = TRUE)
cdm$cohort2 <-  requireConceptIntersect(
  cohort = cdm$cohort1,
  conceptSet = list(a = 1),
  window = c(-Inf, 0),
  name = "cohort2")