[Unknown mortality of the population in long-term care homes in Spain]

It seems necessary to assess the mortality of older people living in long-term care homes to examine its determinants, including the structural and organizational characteristics of these centers and their relationship with the use of health and social services. Attempting to investigate the mortality of the population over 65 years of age living in long-term care homes during COVID-19, we were not able to identify those who died at their long-term care home and, consequently, to know their number of deaths and their causes. In this field note, we describe this anomalous situation and propose a solution: compliance with the law that obliges all citizens to register at their usual address, which should be required in the process of admission to a residence. This would ensure the availability of the necessary data to know the mortality of the population residing in a residence.