R/Medicine 2023 Virtual Conference

The quality of medical research data can be affected by various sources, ranging from erroneous measurement devices to selective drop-out of participants. For this reason, data quality must be routinely assessed, which requires efficient and comprehensive tools. dataquieR enables to assess the quality of research data collections, especially for observational studies. The scope of checks is based on the data quality framework by Schmidt et al. (2021) and depends on the available metadata. The metadata describe properties of single variables (e.g., range of numeric values, codes for missing values), combinations of variables (e.g., contradictions, multivariate outliers) or information about examinations and the entire study (e.g., number of participants). This information can be simply provided in spreadsheets. Extensive data quality reports can then be generated with a single command call and viewed interactively in a browser. Each report output is reproducible, as it is possible to extract code snippets from the report to re-run specific checks. dataquieR can be installed from CRAN and more information is provided on our website (https://dataquality.ship-med.uni-greifswald.de).