DrugDuration

In DrugExposureDiagnostics: Diagnostics for OMOP Common Data Model Drug Records

options(rmarkdown.html_vignette.check_title = FALSE)
knitr::opts_chunk$set(
  warning = FALSE,
  message = FALSE,
  collapse = TRUE,
  comment = "#>"
)

Run duration check

library(DrugExposureDiagnostics)
cdm <- mockDrugExposure()
result <- executeChecks(
  cdm = cdm,
  checks = "exposureDuration"
)

Drug exposure duration Overall

This shows the drug exposure duration of the drug records summarised on ingredient level. The drug exposure duration is estimated through (drug_exposure_end_date - drug_exposure_start_date + 1) for every individual drug exposure record.

DT::datatable(result$drugExposureDurationOverall,
  rownames = FALSE
)

| Column | Description | :------------- | :------------- | ingredient_concept_id | Concept ID of ingredient. | ingredient | Name of drug ingredient. | n_records | Number of records for ingredient concept. If n_records is the same as n_sample this means that there are more records but the number was cut at the pre-specified sample number for efficiency reasons. | n_sample | The pre-specified maximum sample. If n_records is smaller than the sample it means that sampling was ignored because the total number of records was already too small. | n_person | Number of individuals. | n_non_negative_days | Number of drug records with a duration of one day or more. | n_negative_days | Number of drug records with a negative duration (i.e. drug exposure start date after drug exposure end date). | proportion_negative_days | Proportion of drug records with a negative duration | minimum_drug_exposure_days | Minimum drug exposure duration | q05_drug_exposure_days | 5th quantile of drug exposure duration | q10_drug_exposure_days | 10th quantile of drug exposure duration | q25_drug_exposure_days | 25th quantile of drug exposure duration |
median_drug_exposure_days | Median drug exposure duration | q75_drug_exposure_days | 75th quantile of drug exposure duration | q90_drug_exposure_days | 90th quantile of drug exposure duration | q95_drug_exposure_days | 95th quantile of drug exposure duration | maximum_drug_exposure_days | Maximum drug exposure duration | result_obscured | TRUE if count has been suppressed due to being below the minimum cell count, otherwise FALSE. |

Drug exposure duration by drug concept

This shows the drug exposure duration on the drug concept level. The drug exposure duration is estimated through (drug_exposure_end_date - drug_exposure_start_date + 1) for every individual drug exposure record. The tables are identical to the overall just including two more columns at the beginning. \

| Column | Description | :------------- | :------------- | drug_concept_id | ID of the drug concept. | drug | Name of the drug concept. |

DT::datatable(result$drugExposureDurationByConcept, rownames = FALSE)

DrugExposureDiagnostics documentation built on Sept. 16, 2025, 9:11 a.m.