inst/doc/a06_concatanate_cohorts.R

In CohortConstructor: Build and Manipulate Study Cohorts Using a Common Data Model

## ----include = FALSE----------------------------------------------------------
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>"
)

## ----setup--------------------------------------------------------------------
library(CohortConstructor)
library(CohortCharacteristics)
library(ggplot2)

## ----include = FALSE----------------------------------------------------------
knitr::opts_chunk$set(
  collapse = TRUE,
  eval = TRUE, message = FALSE, warning = FALSE,
  comment = "#>"
)

library(CDMConnector)
library(dplyr, warn.conflicts = FALSE)

if (Sys.getenv("EUNOMIA_DATA_FOLDER") == ""){
  Sys.setenv("EUNOMIA_DATA_FOLDER" = file.path(tempdir(), "eunomia"))}
if (!dir.exists(Sys.getenv("EUNOMIA_DATA_FOLDER"))){ dir.create(Sys.getenv("EUNOMIA_DATA_FOLDER"))
  downloadEunomiaData()  
}

## -----------------------------------------------------------------------------
con <- DBI::dbConnect(duckdb::duckdb(), dbdir = eunomiaDir())
cdm <- CDMConnector::cdmFromCon(con, cdmSchema = "main", 
                    writeSchema = "main", writePrefix = "my_study_")

## -----------------------------------------------------------------------------
cdm$medications <- conceptCohort(cdm = cdm, 
                                 conceptSet = list("acetaminophen" = 1127433), 
                                 name = "medications")
cohortCount(cdm$medications)

## -----------------------------------------------------------------------------
cdm$medications_collapsed <- cdm$medications |> 
  collapseCohorts(
  gap = 1095,
  name = "medications_collapsed"
)

## -----------------------------------------------------------------------------
cdm$medications |>
  filter(subject_id == 1)
cdm$medications_collapsed |>
  filter(subject_id == 1)

## -----------------------------------------------------------------------------
summary_attrition <- summariseCohortAttrition(cdm$medications_collapsed)
tableCohortAttrition(summary_attrition)