The course of self-perceived cognitive functioning among patients with lymphoma and the co-occurrence with fatigue and psychological distress

Afke Ekels*, Simone Oerlemans*, Sanne B Schagen, Djamila E Issa, Noortje Thielen, Marten R Nijziel, Marjolein W M van der Poel, Lindy P J Arts, Eduardus F M Posthuma, Lonneke V van de Poll-Franse

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Purpose: To investigate the proportion of patients with lymphoma with persistent clinically relevant cognitive impairment, and its relation to treatment, fatigue, and psychological distress. Methods: Patients with diffuse-large-B-cell-lymphoma (DLBCL), follicular-lymphoma (FL), and chronic-lymphocytic-leukemia (CLL)/small-lymphocytic-lymphoma (SLL), diagnosed between 2004–2010 or 2015–2019, were followed up to 8 years post-diagnosis. Sociodemographic and clinical data were obtained from the Netherlands Cancer Registry and the Population-based HAematological Registry for Observational Studies. The EORTC QLQ-C30 was used to assess cognitive functioning and fatigue, and the HADS to assess psychological distress. Individual growth curve models were performed. Results were compared with an age- and sex-matched normative population. Results: A total of 924 patients were included (70% response rate). Persistent cognitive impairment was twice as high in patients (30%) compared to the normative population (15%). Additionally, 74% of patients reported co-occurring symptoms of persistent fatigue and/or psychological distress. Patients with FL (− 23 points, p < 0.001) and CLL/SLL (− 10 points, p < 0.05) reported clinically relevant deterioration of cognitive functioning, as did the normative population (FLnorm − 5 points, DLBCLnorm − 4 points, both p < 0.05). Younger age, higher fatigue, and/or psychological distress at inclusion were associated with worse cognitive functioning (all p’s < 0.01). Treatment appeared less relevant. Conclusion: Almost one-third of patients with lymphoma report persistent cognitive impairment, remaining present up to 8 years post-diagnosis. Early onset and co-occurrence of symptoms highlight the need for clinicians to discuss symptoms with patients early. Implications for Cancer Survivors: Early recognition of cognitive impairment could increase timely referral to suitable supportive care (i.e., lifestyle interventions) and reduce (long-term) symptom burden.

Original languageEnglish
Number of pages14
JournalJournal of Cancer Survivorship-Research and Practice
DOIs
Publication statusE-pub ahead of print - 27 Sept 2023

Keywords

  • Cognition
  • Lymphoma
  • Patient-reported outcome
  • Population-based registry
  • Quality of life

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