Disqualification of Neoadjuvant Rectal Score Based on Data of 6596 Patients From the Netherlands Cancer Registry.


Department of Surgery, Leiden University Medical Centre, Leiden, The Netherlands; Department of Surgery, The Netherlands Cancer Institute, Amsterdam, The Netherlands. Electronic address: [Email]


The neoadjuvant rectal score (NAR) was developed as a surrogate endpoint for overall survival in patients with rectal cancer after neoadjuvant treatment. We aimed to validate the NAR score in patients from the Netherlands Cancer Registry database.


Neoadjuvant therapy,Rectal cancer,Survival analysis,Validation study,