RWE 101 – Verifying the Source of Data (Not to be Confused with Source Data Verification…Yup! Confusing!)
Verifying the source of data is critical in the context of real world evidence (RWE) because the quality and reliability of the data are essential for generating accurate and trustworthy evidence. RWE is derived from real-world data (RWD), which is often collected from a variety of sources, including electronic health records (EHRs), claims databases, patient registries, and wearable devices.
There are several reasons why it is important to verify the source of RWD used to generate RWE:
Data quality: The quality of RWD can vary depending on the source, and it is essential to ensure that the data used to generate RWE are of high quality. Verification of the data source can help ensure that the data have been collected and managed in accordance with accepted standards and best practices.
Data completeness: Ensuring that the RWD used to generate RWE are complete and accurate is critical to the validity and reliability of the evidence. Verification of the data source can help ensure that all relevant data have been captured and that there are no gaps or inconsistencies in the data.
Data relevance: RWE is generated from RWD that may come from diverse sources, and it is important to verify that the data are relevant to the research question or hypothesis being investigated. Verification of the data source can help ensure that the data used to generate RWE are appropriate for the research question being addressed.
Data bias: RWD can be subject to various types of bias, including selection bias, measurement bias, and confounding bias. Verification of the data source can help identify potential sources of bias and enable appropriate adjustments to be made to the analysis to account for any bias.
In summary, verifying the source of data used to generate RWE is critical to ensure that the evidence generated is accurate, reliable, and trustworthy. It can help ensure that the data are of high quality, complete, relevant, and free from bias, which are all essential for generating high-quality evidence that can inform clinical decision-making and healthcare policy.
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