% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Zhong:157064, author = {C. Zhong and P. Seibold$^*$ and C. R. Chao and W. Cozen and J. Y. Song and D. Weisenburger and L. Bernstein and S. S. Wang}, title = {{A}ssessing {C}ancer {T}reatment {I}nformation {U}sing {M}edicare and {H}ospital {D}ischarge {D}ata among {W}omen with {N}on-{H}odgkin {L}ymphoma in a {L}os {A}ngeles {C}ounty {C}ase-{C}ontrol {S}tudy.}, journal = {Cancer epidemiology, biomarkers $\&$ prevention}, volume = {29}, number = {5}, issn = {1538-7755}, address = {Philadelphia, Pa.}, publisher = {AACR}, reportid = {DKFZ-2020-01355}, pages = {936 - 941}, year = {2020}, abstract = {We assessed the ability to supplement existing epidemiologic/etiologic studies with data on treatment and clinical outcomes by linking to publicly available cancer registry and administrative databases.Medical records were retrieved and abstracted for cases enrolled in a Los Angeles County case-control study of non-Hodgkin lymphoma (NHL). Cases were linked to the Los Angeles County cancer registry (CSP), the California state hospitalization discharge database (OSHPD), and the SEER-Medicare database. We assessed sensitivity, specificity, and positive predictive value (PPV) of cancer treatment in linked databases, compared with medical record abstraction.We successfully retrieved medical records for 918 of 1,004 participating NHL cases and abstracted treatment for 698. We linked $59\%$ of cases $(96\%$ of cases >65 years old) to SEER-Medicare and $96\%$ to OSHPD. Chemotherapy was the most common treatment and best captured, with the highest sensitivity in SEER-Medicare $(80\%)$ and CSP $(74\%);$ combining all three data sources together increased sensitivity $(92\%),$ at reduced specificity $(56\%).$ Sensitivity for radiotherapy was moderate: $77\%$ with aggregated data. Sensitivity of BMT was low in the CSP $(42\%),$ but high for the administrative databases, especially OSHPD $(98\%).$ Sensitivity for surgery reached $83\%$ when considering all three datasets in aggregate, but PPV was $60\%.$ In general, sensitivity and PPV for chronic lymphocytic leukemia/small lymphocytic lymphoma were low.Chemotherapy was accurately captured by all data sources. Hospitalization data yielded the highest performance values for BMTs. Performance measures for radiotherapy and surgery were moderate.Various administrative databases can supplement epidemiologic studies, depending on treatment type and NHL subtype of interest.}, cin = {C020}, ddc = {610}, cid = {I:(DE-He78)C020-20160331}, pnm = {313 - Cancer risk factors and prevention (POF3-313)}, pid = {G:(DE-HGF)POF3-313}, typ = {PUB:(DE-HGF)16}, pubmed = {pmid:32066614}, pmc = {pmc:PMC7196521}, doi = {10.1158/1055-9965.EPI-19-1504}, url = {https://inrepo02.dkfz.de/record/157064}, }