Cognitive function in long-term lymphoma survivors: relationship between subjective reports and objective assessments and with quality of life.

Cognitive functioning plays a fundamental role in people's life and quality of life (QoL), and anti-cancer chemotherapy may provoke long-lasting cognitive problems. This study investigated the subjective perception of cognitive functioning in long-term lynfoma survivors and its associations with objectively assessed cognitive functioning and QoL. 198 long-term lynfoma survivors were administered the Cognitive Functioning Self-Assessment Scale (CFSS), the Esame Neuropsicologico Breve 2 (ENB2) and the Short Form 36 Health Survey Questionnaire (SF-36). Subjectively reported cognitive functioning was worse than the norm for the general population (p<0.001). Difficulty in recalling recent information (22%), using of periphrases or generic terms (16.7%) and tip-of-the-tongue phenomena (14.7%) were the cognitive difficulties most frequently reported. CFSS overall score correlated positively with the number of impaired performances (p<0.001) and borderline performances (p=0.014) on the ENB2. Both subjectively and objectively assessed cognitive measures correlated negatively with most assessed QoL domains, indicating that QoL is worse when cognitive functioning is poor. Subjective concerns about one's own cognitive functioning are a reality for long-term lynphoma survivors, who experience these worries more than the general population does. Since improving QoL is a priority in oncology, this study supports the use of interventions to improve cognitive functioning in cancer survivors.

Cognitive functioning in long-term cancer survivorship: A survey utilizing both standardized neuropsychological and self-report measures.

Since long-term cancer survivorship is a reality for an increasing number of people, understanding their cognitive functioning is useful for both research and clinical purposes. This study described the cognitive functioning of Italian long-term cancer survivors, using both an objective standardized battery and a self-report questionnaire. A total of 136 Italian adults 5+ years free from cancer and its treatments were administered the Esame Neuropsicologico Breve, the Self-Assessment Scale of Cognitive Functioning, and assessments of other psychological dimensions. A total amount of 15% of the sample showed impaired performance on 2+ of the assessed cognitive functions, and 32% had 1+ impaired function. The subjective perception of their cognitive functioning was worse in the present sample, compared to the normative data (p < 0.001). Cognitive functioning, objectively and subjectively measured were significantly correlated (p = 0.006). The number of tests scored outside the normal range correlated positively with depression (p = 0.042) and negatively with both the estimated total IQ (p < 0.001) and with estimated performance IQ (p = 0.001). Self-perceived cognitive functioning correlated positively (p < 0.001) with depression, anxiety, and fatigue. These data document how cognitive difficulties may remain for a long time in cancer patients, who are likely to continue to subjectively perceive themselves as impaired, although sometimes to a greater extent than objective impairment.