A study will be carried out on patients with rheumatic diseases and healthy family controls. Patients will be selected from those attending the Department of Immunology and Rheumatology in Mexico City outpatient department, including consecutive cases.~The patients will be assessed for their quality of life and disability. Patients and controls will be evaluated on the knowledge of living will, their perceptions about specific health outcomes, sociodemographic characteristics, comorbidities, and psychiatric pathology.
The living will is a legal document derived from a communication and deliberation process, medical ethical aspect, currently regulated in Mexico by the General Health Law and the Health Law of Mexico City.~Knowledge of living will in the population with chronic diseases, including rheumatic diseases, has been little addressed. Most patients do not know what the living will document is, so they do not carry it out and others, despite knowing it, have a passive attitude toward doing it.