Variability in date of prostate cancer diagnosis: A comparison of cancer registry, pathology report, and electronic health data sources - Abstract

PURPOSE: The date of cancer diagnosis is a critical data element for clinical care and research.

Because this date can be abstracted from various data sources, its comparability from source to source is unclear. This study compared the date of diagnosis from multiple sources within the same population of prostate cancer patients.

METHODS: We linked cancer registry, pathology report, and electronic health data sources from the Kaiser Permanente Southern California health data systems for a cohort of 22,666 members diagnosed with prostate cancer between 2000 and 2010. The magnitude and direction of the differences in date of diagnosis were assessed for each date pairwise comparison. We reviewed 454 medical records to determine reasons for date discrepancies.

RESULTS: Among the date pairwise comparisons, differences in date of diagnosis spanned from 9.6 years earlier to 10 years later than each other. However, the overall median difference ranged from 1 to 16 days, thus suggesting that the vast majority of the date differences were small. Chart review results identified major categories of date discrepancies.

CONCLUSIONS: These data demonstrate variability in date of diagnosis across these data sources. This variability may have implications for epidemiologic estimates or patient identification in research studies using different data sources.

Written by:
Porter KR, Chao C, Quinn VP, Hsu JW, Jacobsen SJ.   Are you the author?
Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, CA.  

Reference: Ann Epidemiol. 2014 Sep 17. pii: S1047-2797(14)00404-9.
doi: 10.1016/j.annepidem.2014.09.004


PubMed Abstract
PMID: 25282324

UroToday.com Prostate Cancer Section

E-Newsletters

Newsletter subscription

Free Daily and Weekly newsletters offered by content of interest

The fields of GU Oncology and Urology are rapidly advancing. Sign up today for articles, videos, conference highlights and abstracts from peer-review publications by disease and condition delivered to your inbox and read on the go.

Subscribe