Intrinsic capacity and survival among older adults with gastrointestinal malignancies: The Cancer and Aging Resilience Evaluation registry.

The World Health Organization introduced intrinsic capacity as a marker of healthy aging. Intrinsic capacity is the combination of an individual's physical, mental, and psychological capacities. It contains six key domains: vitality, locomotion, and sensory (hearing and visual), psychological, and cognitive capacities. Older adults with cancer are susceptible to a decrease in intrinsic capacity as a result of cancer and the aging process. In this study, we aimed to assess the intrinsic capacity for patients with gastrointestinal cancer and also identify whether there exists any association of intrinsic capacity with overall survival. We identified that approximately 80% of this population had one or more impaired domains, and more intrinsic capacity impairment was associated with reduced overall survival.