Clinicians who care for older persons have long been frustrated by the limitations of the prevalent disease–oriented approach (ie, the medical model) as a taxonomy for defining health, disease, and payment for clinical care.1 The medical model tends to focus on individual organ systems, but is inadequate to characterize persons with the combination of multiple diseases, limitations of function, and cognitive and psychosocial problems. For instance, geriatric syndromes commonly occur in older persons but do not fit the classic disease-oriented medical model.
Applegate WB, Ip E. The Evolving Taxonomy of Health in Older Persons. JAMA. 2016;316(23):2487–2488. doi:10.1001/jama.2016.16432
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