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Convergence with SEER database achieved by a breast cancer network: a longitudinal benchmark of 5-year relative survival

  • Original Article – Clinical Oncology
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Abstract

Purpose

To benchmark outcomes of a German breast cancer network with the Surveillance Epidemiology and End Results programme (SEER) of the USA from a longitudinal point of view.

Methods

All women receiving primary breast cancer therapy of three hospitals in a rural district of Marburg-Biedenkopf (Germany) of time intervals 1996–1997 and 2003–2004 were used to define local benchmark objects. Data from SEER-programme contributed longitudinal benchmark objects from national level (1988–2004). All benchmark objects were compared with the time-fixed benchmark reference of SEER (2004). Stage distributions and 5-year relative survival ratios were combined to estimate standardized screening-, case-mix-, work-up-, treatment- and relative overall performance index.

Results

From the entry cohort of 877 German women, 97.7 % of the patients accounted for the institutional sample (N = 857) and 65.8 % accounted for the regional sample (N = 577). Stage distributions, relative survival ratios and indices of the German breast cancer network improved over time. Developed indices converged with SEER (2004).

Conclusions

Effectiveness gap between one exemplary German breast cancer network and international benchmark defined by SEER has been closed. Reasons are manifold, and further research is recommended.

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Acknowledgments

This work was supported by a grant of the German Ministry of Health (FÃű.Kz.: FB 2-43332-70/6) and the Ministry of Education and Research within the program: Health research to benefit the people—Guideline implementation for early diagnosis and treatment of breast cancer (FÃű.-KZ: GFZPO1119302).

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Authors and Affiliations

  1. Central Institute of Mental Health, Medical Faculty Mannheim, University Heidelberg, Square J5, 68159, Mannheim, Germany

    Christian O. Jacke & Iris Reinhard

  2. Head Department of Gynaecology and Obstetrics, Krankenhaus Nordwest, Frankfurt, Germany

    Ute S. Albert

  3. Department of Gynecology and Obstetrics, University of Marburg, Marburg, Germany

    Matthias Kalder

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  1. Christian O. Jacke
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  2. Ute S. Albert
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  3. Iris Reinhard
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  4. Matthias Kalder
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Correspondence to Christian O. Jacke.

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Jacke, C.O., Albert, U.S., Reinhard, I. et al. Convergence with SEER database achieved by a breast cancer network: a longitudinal benchmark of 5-year relative survival. J Cancer Res Clin Oncol 141, 1109–1118 (2015). https://doi.org/10.1007/s00432-014-1879-9

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  • DOI: https://doi.org/10.1007/s00432-014-1879-9

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