Are cancer care pathways associated with longer waiting times. Analysing crowding out effects in radiology, pathology, and surgery

Introduction In 2015, Sweden initiated the implementation of standardised cancer care pathways (CCPs). With short, nationally imposed target times from diagnosis to first treatment, the issue of crowding out effects has been debated. This study investigate whether the implementation of CCPs is associated with longer waiting times for surgery, radiology scans and pathology analyses for other patient groups. Methods Data from the internal computer systems used in radiology, pathology and surgery to plan and follow the production at a county hospital in Sweden during 2014–2017 were analysed. By utilising the different priority categories used in these specialties, changes in waiting times before and after the implementation of CCPs could be analysed. Results The results are consistent with an association between the implementation of CCPs and longer waiting times for the priority category prioritised immediately after the CCP category in all specialties. In addition, none of the lowest priority categories within each subspecialty have experienced increased waiting times after CCP implementation. Discussion These results are consistent with a change in prioritisation where CCP patients are receiving shorter waiting times after CCP implementation at the expense of other patient groups. Crowding out effects related to CCP implementation have not been previously researched. This study therefore fills a gap in present literature. With an increased awareness of these challenges, and a more holistic perspective in the implementation process, actions can be put in place to identify and counteract crowding out effects.