Return to Work After Breast Cancer Treatment: An Electronic Health Record-based Study in North Norway

Background/Aim: Breast cancer treatment may interfere with work ability. Previous return-to-work studies have often focused on participants who were invited to participate after treatment completion. Participation varied, resulting in potential selection bias. This is a health-record-based study evaluating data completeness, both at baseline and one year after diagnosis. Correlations between baseline variables and return to work were also analyzed. Patients and Methods: This is a retrospective review of 150 relapse-free survivors treated in Nordland county between 2019 and 2022 (all-comers managed with different types of systemic treatment and surgery). Work status was assessed in the regional electronic patient record (EPR). A 65-years age cut-off was employed to define two subgroups. Results: At diagnosis, occupational status was assessable in all 150 patients. Almost all patients older than 65 years of age were retired (79%) or on disability pension for previously diagnosed conditions (19%). Data completeness one year after diagnosis was imperfect, because the EPR did not contain required information in 19 survivors. The majority of those ≤65 years of age at diagnosis returned to work. Only 14 of 88 patients (16%) did not return to work. Postoperative nodal stage was the only significant predictive factor. Those with pN1-3 had a lower return rate (68%) than their counterparts with lower nodal stage. Conclusion: This pilot study highlights the utility and limitations of EPR-based research in a rural Norwegian setting, emphasizing the need for comprehensive, individualized interventions to support breast cancer survivors in returning to work. The findings underscore the importance of considering diverse sociodemographic and clinical factors, as well as the potential benefits of long-term, population-based studies to address these complex challenges.