biostudies-literatureLadekarl MThe APC was funded by H.E. og N.C. Brogaards legat til kræftforskningens fremme (no grant number).116https://www.ebi.ac.uk/biostudies/studies/S-EPMC12939013biostudies-literatureUnknown33(2)<i>Background:</i> About 40% of patients with pancreatic cancer (PC) are left untreated. Identification of the modifiable factors for opting out could increase the number eligible for treatment. <i>Methods:</i> We first assessed the completeness of registration. Next, we identified patients residing in the North Denmark Region, included 2023/24 in the Danish Pancreas Cancer Database (DPCD), registered as "no treatment". We supplemented register data with health record data, including reasons for opting out of treatment. <i>Results:</i> Registration in DPCD was complete compared to the National Clinical Cancer Database, except for one patient. Six patients had other tumors. Of a total of 91 patients, 79% were >75 years old, 2/3 were in performance status (PS) > 2, more than half were socialCurrent oncology (Toronto, Ont.)Characteristics, Prognosis and Reasons for Opting-Out of Treatment in Patients with Untreated Pancreatic Cancer.PMC12939013NALadekarl MStender MTfalseCharacteristics, Prognosis and Reasons for Opting-Out of Treatment in Patients with Untreated Pancreatic Cancer.<i>Background:</i> About 40% of patients with pancreatic cancer (PC) are left untreated. Identification of the modifiable factors for opting out could increase the number eligible for treatment. <i>Methods:</i> We first assessed the completeness of registration. Next, we identified patients residing in the North Denmark Region, included 2023/24 in the Danish Pancreas Cancer Database (DPCD), registered as "no treatment". We supplemented register data with health record data, including reasons for opting out of treatment. <i>Results:</i> Registration in DPCD was complete compared to the National Clinical Cancer Database, except for one patient. Six patients had other tumors. Of a total of 91 patients, 79% were >75 years old, 2/3 were in performance status (PS) > 2, more than half were social2026-01-01T00:00:00Z2026 Feb2026-07-11T03:09:19.268Z2026-07-11T03:08:21.115ZS-EPMC129390134174488010.3390/curroncol33020116