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New malignancies following cancer of the urinary bladder: analysis of German cancer registry data

Authors

  • M. LEHNERT MD, MPH,

    Corresponding author
    1. Department of Epidemiology, Institute of Prevention and Occupational Medicine of the German Social Accident Insurance (IPA), Institute of the Ruhr University Bochum, Bochum
      Martin Lehnert, Department of Epidemiology, Institute of Prevention and Occupational Medicine of the German Social Accident Insurance (IPA), Institute of the Ruhr University Bochum, Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany (e-mail: lehnert@ipa-dguv.de).
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  • K. KRAYWINKEL MD, MSC, HEAD,

    1. German Center for Cancer Registry Data, Robert Koch Institute, Berlin
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  • B. PESCH BIOLOGIST, EPIDEMIOLOGIST, HEAD,

    1. Department of Epidemiology, Institute of Prevention and Occupational Medicine of the German Social Accident Insurance (IPA), Institute of the Ruhr University Bochum, Bochum
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  • B. HOLLECZEK COMPUTER SCIENTIST,

    1. Population-based Cancer Registry Saarland, Saarbrücken
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  • T. BRÜNING MD, PROFESSOR AND DIRECTOR

    1. Institute of Prevention and Occupational Medicine of the German Social Accident Insurance (IPA), Institute of the Ruhr University Bochum, Bochum, Germany
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  • K. Kraywinkel was formerly at Population-based Cancer Registry North Rhine-Westphalia, Münster, Germany.

Martin Lehnert, Department of Epidemiology, Institute of Prevention and Occupational Medicine of the German Social Accident Insurance (IPA), Institute of the Ruhr University Bochum, Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany (e-mail: lehnert@ipa-dguv.de).

Abstract

LEHNERT M., KRAYWINKEL K., PESCH B., HOLLECZEK B. & BRÜNING T. (2012) European Journal of Cancer Care21, 398–402

New malignancies following cancer of the urinary bladder: analysis of German cancer registry data

This analysis aimed at occurrence and distribution patterns of new malignancies following bladder cancer. Standardised incidence ratios (SIRs) were calculated for two German population-based cancer registries of North Rhine-Westphalia (NRW) and Saarland to access risks for subsequent primaries. An elevated risk for secondary cancer of any site but urothelium was observed in NRW men [SIR 1.35, 95% confidence interval (CI) 1.22–1.49]. The corresponding risk in Saarland was not significantly elevated (SIR 1.06, 95% CI 0.97–1.15). In data of both registries excess risks were observed for cancer of the respiratory tract (SIR 1.54, CI 1.23–1.89 in NRW men) and the prostate (SIR 1.91, 95% CI 1.61–2.24 in NRW; SIR 1.25, 95% CI 1.07–1.45 in Saarland). Common risk factors and incidental findings during follow-up care of bladder cancer patients might explain most of the observed patterns. In addition SIRs were throughout particular high for subsequent cancer of the renal pelvis and the ureter due to pathological characteristics of urothelial neoplasms.

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