Navas-Martin, Miguel AngelLopez-Bueno, Jose AntonioFollos, FernandoVellón, José ManuelMirón, Isidro JuanLuna, YolandaSánchez-Martínez, GerardoLinares-Gil, CristinaDiaz-Jimenez, Julio2024-05-292024-05-292023Gac Sanit. 2023;37(S1):360-360.http://hdl.handle.net/20.500.12105/19633XLI Reunión anual de la Sociedad Española de Epidemiología (SEE) y XVIII Congresso da Associação Portuguesa de Epidemiología (APE). Porto (Portugal), del 5 al 8 de septiembre de 2023.Background/Objectives: The aim of this study was to ascertain, firstly, adaptation to heat among persons aged ≥ 65 years across the period 1983 to 2018 through analysis of the MMT; and secondly, the trend in such adaptation to heat over time with respect to the total population. Methods: A retrospective longitudinal ecological time series study was conducted, using data on daily mortality and maximum daily temperature across the study period. Results: Over time, the MMT was highest among elderly people, with a value of 28.6 oC (95%CI 28.3-28.9) versus 28.2 oC (95%CI 27.83-28.51) for the total population, though this difference was not statistically significant. A total of 62% of Spanish provinces included populations of elderly people that had adapted to heat during the study period. In general, elderly persons’ level of adaptation registered an average value of 0.11 (oC/decade). Conclusions/Recommendations: Although the Spanish provincial population aged ≥ 65 years showed adaptation to heat, heterogeneities were found among the various provinces, highlighting the fact that in a given country vulnerability to ambient temperature varies, and that its relationship with the process of adaptation is thus influenced by the geographical, climatic and socio-economic characteristics of each particular area.enghttp://creativecommons.org/licenses/by-nc-nd/4.0/HeatHeat adaptationElderlySpainMortalityconference presentationAttribution-NonCommercial-NoDerivatives 4.0 Internacional37s1360-360Gaceta Sanitariaopen access