stratifyCohorts {CohortConstructor} | R Documentation |
stratifyCohorts()
creates new cohorts, splitting an existing cohort based
on specified columns on which to stratify on.
stratifyCohorts(
cohort,
strata,
cohortId = NULL,
removeStrata = TRUE,
name = tableName(cohort)
)
cohort |
A cohort table in a cdm reference. |
strata |
A strata list that point to columns in cohort table. |
cohortId |
IDs of the cohorts to include. If NULL all cohorts will be considered. Cohorts not included will be removed from the cohort set. |
removeStrata |
Whether to remove strata columns from final cohort table. |
name |
Name of the new cohort. |
Cohort table stratified.
library(CohortConstructor)
library(PatientProfiles)
cdm <- mockCohortConstructor()
cdm$my_cohort <- cdm$cohort1 |>
addAge(ageGroup = list("child" = c(0, 17), "adult" = c(18, Inf))) |>
addSex() |>
stratifyCohorts(
strata = list("sex", c("sex", "age_group")), name = "my_cohort"
)
cdm$my_cohort
settings(cdm$my_cohort)
attrition(cdm$my_cohort)