Guideline-Based Quality Indicators for Kidney and Bladder Cancer in Germany: Development and Implementation

Abstract

<b><i>Introduction:</i></b> As part of the development of the evidence-based (S3) clinical practice guidelines for kidney and bladder cancer by the German Guideline Program in Oncology, quality indicators (QIs) were defined to measure the quality of care. Based on these guidelines and QIs, the German Cancer Society (DKG) developed two new certification systems. The aim of this article is to show the process of development and implementation of QIs in certified cancer centres. <b><i>Methods:</i></b> Based on strong recommendations of each guideline and an additional systematic literature review for national and international QIs, two sets of QIs were derived in a multistep standardized approach. These QIs were implemented in the centres in certification data sheets to measure their outcomes. First results of treatment years 2018 and 2019 are available. <b><i>Results:</i></b> The final sets include 9 QIs for kidney cancer and 12 QIs for bladder cancer. Two-thirds of the QIs were transferred to the data sheets. In 2018 and 2019, the results of all but one QI are within the plausibility limits. From 2020 on, they are replaced by stricter target values that will challenge centres to improve their outcomes. <b><i>Conclusions:</i></b> Guideline-derived QIs make relevant aspects of patient care measurable and consequently improvable. The first QI results are encouraging. However, the DKG certification system and the methods of measuring quality are under ongoing development. Systematic QI implementation and evaluation may help to generate broader databases and thus expand knowledge.