*2.1. Design and Setting*

A cross-sectional study with an online survey was conducted in the Castellón Province (E Spain), where the health system is organized into three health departments, each with a reference hospital and different primary care centers that each cover populations between 200,000 and 250,000 inhabitants. One of the health departments has two other hospitals: one specializes in oncology and mental health, while the other is used for chronic patients and rehabilitation. This province has 40 nursing homes for the elderly and disabled. Of these, 60% (*n* = 24) are private homes and the rest are public. Private healthcare is limited to one hospital, with rooms for medical specialists and hemodialysis clinics.
