Skip to contents

Introduction

In this example we’re going to summarise the characteristics of individuals with an ankle sprain, ankle fracture, forearm fracture, or a hip fracture using the Eunomia synthetic data.

We’ll begin by creating our study cohorts.

library(CDMConnector)
library(CohortConstructor)
library(CodelistGenerator)
library(phenotypeR)
library(dplyr)
library(ggplot2)

con <- DBI::dbConnect(duckdb::duckdb(),
  dbdir = CDMConnector::eunomia_dir()
)
cdm <- CDMConnector::cdm_from_con(con,
  cdm_schem = "main",
  write_schema = "main",
  cdm_name = "Eunomia"
)

cdm$injuries <- conceptCohort(cdm = cdm,
  conceptSet = list(
    "ankle_sprain" = 81151,
    "ankle_fracture" = 4059173,
    "forearm_fracture" = 4278672,
    "hip_fracture" = 4230399
  ),
  name = "injuries")
cdm$injuries |> 
  glimpse()
#> Rows: ??
#> Columns: 4
#> Database: DuckDB v1.1.0 [unknown@Linux 6.8.0-1014-azure:R 4.4.1//tmp/RtmpbpMFwy/file1940715e8f2f.duckdb]
#> $ cohort_definition_id <int> 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 1, 2, 2, 2…
#> $ subject_id           <int> 4748, 63, 452, 905, 1751, 2006, 2153, 3397, 3666,…
#> $ cohort_start_date    <date> 1984-10-25, 2000-10-15, 1964-10-26, 1979-02-26, …
#> $ cohort_end_date      <date> 1984-12-24, 2000-10-29, 1964-11-30, 1979-03-12, …

Summarising code use

code_diag <- codelistDiagnostics(cdm$injuries)
tableCohortCodeUse(code_diag)
Database name
Eunomia
Cohort name Codelist name Standard concept name Standard concept ID Source concept name Source concept id Domain id Estimate name
Record count Person count
ankle_fracture ankle_fracture overall - overall overall overall 464 427
Fracture of ankle 4059173 Fracture of ankle 4059173 condition 464 427
ankle_sprain ankle_sprain overall - overall overall overall 1,915 1,357
Sprain of ankle 81151 Sprain of ankle 81151 condition 1,915 1,357
forearm_fracture forearm_fracture overall - overall overall overall 569 510
Fracture of forearm 4278672 Fracture of forearm 4278672 condition 569 510
hip_fracture hip_fracture overall - overall overall overall 138 132
Closed fracture of hip 4230399 Closed fracture of hip 4230399 condition 138 132