Clustering Diseases in Cancer and Health Organization: What Is the Gold-Standard Approach?

Cancer is a chronic disease with long-term consequences for health and quality of life and is more prevalent among older people. Therefore, comorbidity among cancer patients is commonly observed. Several data indicate that 40% of cancer patients have at least one other chronic condition recorded, and of these, 15% have two or more medical conditions, including cardiovascular disease, obesity and metabolic disease, mental health problems, and muscle-skeletal conditions. There is no gold-standard approach for measuring comorbidity in the context of cancer, especially in recent years, when health systems have dealt with a pandemic emergency that has negatively impacted the management of cancer patients. The purpose of this narrative review is to clarify and provide the necessary insights to optimize the care of cancer patients. Ensuring the continuum of care for cancer patients is of vital importance and is considered a top priority. It is necessary to overcome the model that considers neoplastic pathology as a single morbid condition. Instead, the complexity of a cancer patient’s problems must be considered and related to complex medical conditions. Addressing the problem of comorbidity in cancer more decisively will be a central challenge if we are to avert a crisis in the models of diagnosis and treatment of cancer patients.