A Combined Measure of Procedural Volume and Outcome to Assess Hospital Quality of Colorectal Cancer Surgery, a Secondary Analysis of Clinical Audit Data

• Nikki E. Kolfschoten,

  Affiliations Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands, Department of Medical Decision Making, Leiden University Medical Centre, Leiden, The Netherlands

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• Perla J. Marang-van de Mheen,

  Affiliation Department of Medical Decision Making, Leiden University Medical Centre, Leiden, The Netherlands

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• Michel W. J. M. Wouters,

  Affiliation Department of Surgical Oncology, Netherlands Cancer Institute, Antoni van Leeuwenhoek hospital Amsterdam, Amsterdam, The Netherlands

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• Eric-Hans Eddes,

  Affiliation Department of Surgery, Deventer Hospital, Deventer, The Netherlands

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• Rob A. E. M. Tollenaar,

  Affiliation Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands

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• Theo Stijnen,

  Affiliation Department of Biostatistics, Leiden University Medical Centre, Leiden, The Netherlands

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• Job Kievit ,

  * E-mail: j.kievit@lumc.nl

  Affiliations Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands, Department of Medical Decision Making, Leiden University Medical Centre, Leiden, The Netherlands

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• on behalf of the Dutch Surgical Colorectal Audit Group