Discover which data sources (Medicare claims, EMRs, or cancer registries) include prostate-specific antigen (PSA) test results independently for evaluating treatment efficacy.
Table of Contents
Question
You are interested in evaluating whether a specific treatment can lower levels of serum prostate-specific antigen, a biomarker often used in prostate cancer. Which data sources are likely to contain results for this test in some format (structured, unstructured) without linking to other data?
A. Medicare claims
B. An EMR network
C. An advanced prostate cancer registry
Answer
B. An EMR network
C. An advanced prostate cancer registry
Explanation
To evaluate whether a treatment lowers serum prostate-specific antigen (PSA) levels, the following data sources are relevant:
B. An EMR Network
Electronic Medical Records (EMRs) routinely capture PSA test results in structured formats (e.g., lab values in dedicated fields) or unstructured formats (e.g., clinician notes). For example, EHR data can identify PSA values as part of prostate cancer screening or monitoring. This makes EMRs a primary standalone source for PSA results.
C. An Advanced Prostate Cancer Registry
Dedicated registries like the IRONMAN registry collect granular clinical data, including biomarker levels like PSA, to study treatment outcomes in advanced prostate cancer. These registries store PSA results directly as part of their structured datasets without requiring external linkages.
Why Medicare Claims (A) Are Not Suitable
Medicare claims only document billing codes (e.g., Healthcare Common Procedure Coding System [HCPCS] codes for PSA tests). While they confirm a test was performed, they do not include actual PSA values or results.
Both EMRs and advanced prostate cancer registries independently contain PSA test results, making B and C the correct answers. Medicare claims lack the necessary biomarker data for this analysis.
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