The survey [3] includes a total of 5,200 non-institutionalized people who had been resident in Spain (Peninsula, Balearic Islands and Canary Islands) at least 5 years. The autonomous cities of Ceuta and Melilla were not included. A multi-stage, stratified sampling was carried out, with random and proportional selection of primary units (municipality) and secondary (sections). The tertiary units (individuals) were identified by random routes and sex and age quotas. To obtain nationally representative data, weighting coefficients were included so that the interviews carried out in each of the Autonomous Communities were adjusted to the real population weightings. The information was collected through computer-assisted home interviews (CAPI- Computer - Assisted Personal Interviewing). This fieldwork took place during the period 14 May–2 July 2018.
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