Comprehensive Geriatric Assessment and Geriatric Interdisciplinary Team Care Model: An Integrated Model for Older Adults

Accelerated global population aging has been accompanied by multimorbidity, progressive decline in organ function, and complex psychosocial conditions among older adults, which collectively place substantial pressure on conventional single-disease-oriented care models. Comprehensive Geriatric Assessment (CGA), defined as a multidimensional and interdisciplinary diagnostic process, in combination with a Geriatric Interdisciplinary Team (GIT) structured around patient-centered care, represents a principal strategy to address these challenges. This narrative review synthesized literature from PubMed, Web of Science, and CNKI (up to December 2025) using keywords including "comprehensive geriatric assessment", "multidisciplinary team", and "integrated care". This review synthesizes the theoretical framework, key components, and implementation pathways of this integrated care model. The underlying conceptual foundations and core principles are examined, with particular attention to critical steps and operational approaches during implementation. Evidence regarding clinical outcomes is evaluated alongside current limitations and future directions. This work aims to provide a conceptual basis and practical reference for the development of efficient and sustainable geriatric integrated care systems.