Singhal S, Walter LC, Smith AK, Boscardin WJ, Shi Y, Cohen HJ, Presley CJ, Kushi LH, Giri S, Magnuson A, Williams GR, Velazquez AI, Lee HJ Jr, Sakoda LC, Quesenberry CP, Falvey JR, Van Dyk KM, and Wong ML
Introduction: Among older adults without cancer, living alone is associated with poor health outcomes. However, among older adults with non-small cell lung cancer (NSCLC) who live alone, data on function, cognition, and quality of life (QOL) during systemic treatment remain limited., Materials and Methods: We enrolled adults aged ≥65 with advanced NSCLC starting a new chemotherapy, immunotherapy, and/or targeted therapy regimen with non-curative intent. Patients completed geriatric assessments including instrumental activities of daily living (IADL), Montreal Cognitive Assessment, and QOL pretreatment and at 1, 2, 4, and 6 months, or until treatment discontinuation, whichever occurred earlier. We categorized change in IADL, cognition, and QOL as stable/improved, declined with recovery, or declined without recovery using clinically meaningful definitions of change. We used multinomial logistic regression to compare change between patients who lived alone versus with others., Results: Among 149 patients, median age was 73; 21% lived alone. Pretreatment IADL, cognition, and QOL scores were similar between older adults who lived alone versus with others. During NSCLC treatment, older adults who lived alone had similar trajectories of function (52% functional decline vs 38%), cognition (43% cognitive decline vs 50%), and QOL (45% QOL decline vs 44%) compared with those who lived with others. In unadjusted analyses, patients who lived alone were more likely to develop functional decline with recovery (reference category: stable/improved function) than those who lived with others (relative risk ratio 4.07, 95% CI 1.14-14.6, p = 0.03). However, this association was not observed after adjusting for age, race, prior NSCLC treatment, current treatment group, and pretreatment geriatric assessment differences. There were no differences in cognitive or QOL trajectories in unadjusted or adjusted analyses., Discussion: Approximately half of older adults with advanced NSCLC who lived alone were able to maintain their function, cognition, and QOL during NSCLC treatment, which was similar to older adults who lived with others. Many older adults with advanced NSCLC who live alone can receive systemic treatment with individualized supportive care., Competing Interests: Declaration of Competing Interest SS reported conflicts of interest outside the submitted work (consultant/advisory to Oncohost). AIV reported conflicts of interest outside the submitted work (consultant/advisory to Merus and AstraZeneca). LCS has received research funding from AstraZeneca awarded directly to her institution. MLW reported conflicts of interest outside of the submitted work (royalties from UpToDate; immediate family member is an employee of Genentech with stock ownership). The remaining authors have no conflicts to report., (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)