addInitialQuantity {DrugUtilisation}

To add a new column with the initial quantity. To add multiple columns use addDrugUtilisation() for efficiency.

Description

To add a new column with the initial quantity. To add multiple columns use addDrugUtilisation() for efficiency.

Usage

addInitialQuantity(
  cohort,
  conceptSet,
  indexDate = "cohort_start_date",
  censorDate = "cohort_end_date",
  restrictIncident = TRUE,
  nameStyle = "initial_quantity_{concept_name}",
  name = NULL
)

Arguments

cohort

Cohort in the cdm.

conceptSet

List of concepts to be included.

indexDate

Name of a column that indicates the date to start the analysis.

censorDate

Name of a column that indicates the date to stop the analysis, if NULL end of individuals observation is used.

restrictIncident

Whether to include only incident prescriptions in the analysis. If FALSE all prescriptions that overlap with the study period will be included.

nameStyle

Character string to specify the nameStyle of the new columns.

name

Name of the new computed cohort table, if NULL a temporary tables is created.

Value

The same cohort with the added column.

Examples

library(DrugUtilisation)

cdm <- mockDrugUtilisation()
codelist <- CodelistGenerator::getDrugIngredientCodes(
  cdm,
  name = "acetaminophen"
)
cdm <- generateDrugUtilisationCohortSet(
  cdm = cdm, name = "dus_cohort", conceptSet = codelist
)

cdm$dus_cohort |>
  addInitialQuantity(conceptSet = codelist)