Carlos Gómez-Martínez, Nancy Babio, Jordi Júlvez, Nerea Becerra-Tomás, Miguel Á. Martínez-González, Dolores Corella, Olga Castañer, Dora Romaguera, Jesús Vioque, Ángel M. Alonso-Gómez, Julia Wärnberg, José A. Martínez, Luís Serra-Majem, Ramón Estruch, Francisco J. Tinahones, José Lapetra, Xavier Pintó, Josep A. Tur, José López-Miranda, Aurora Bueno-Cavanillas, José J. Gaforio, Pilar Matía-Martín, Lidia Daimiel, Vicente Martín-Sánchez, Josep Vidal, Clotilde Vázquez, Emilio Ros, Søren Dalsgaard, Carmen Sayón-Orea, José V. Sorlí, Rafael de la Torre, Itziar Abete, Lucas Tojal-Sierra, Francisco J. Barón-López, Noelia Fernández-Brufal, Jadwiga Konieczna, Antonio García-Ríos, Emilio Sacanella, M. Rosa Bernal-López, José M. Santos-Lozano, Cristina Razquin, Andrea Alvarez-Sala, Albert Goday, M. Angeles Zulet, Jessica Vaquero-Luna, Javier Diez-Espino, Aida Cuenca-Royo, Fernando Fernández-Aranda, Mònica Bulló, and Jordi Salas-Salvadó
IntroductionType 2 diabetes has been linked to greater cognitive decline, but other glycemic parameters such as prediabetes, diabetes control and treatment, and HOMA-IR and HbA1c diabetes-related biomarkers have shown inconsistent results. Furthermore, there is limited research assessing these relationships in short-term studies. Thus, we aimed to examine 2-year associations between baseline diabetes/glycemic status and changes in cognitive function in older participants at high risk of cardiovascular disease.MethodsWe conducted a 2-year prospective cohort study (n=6,874) within the framework of the PREDIMED-Plus study. The participants (with overweight/obesity and metabolic syndrome; mean age 64.9 years; 48.5% women) completed a battery of 8 cognitive tests, and a global cognitive function Z-score (GCF) was estimated. At baseline, participants were categorized by diabetes status (no-diabetes, prediabetes, and