RT Journal Article T1 Are loneliness and social isolation associated with cognitive decline? Evidence from a longitudinal population-based study A1 Lara Pérez, Elvira A1 Caballero, Francisco Félix A1 Rico Uribe, Laura A1 Olaya, Beatriz A1 Haro, Josep Maria A1 Ayuso Mateos, José Luis A1 Miret, Marta AB Objective: This study aimed to examine the association of loneliness and social isolation on cognition over a 3-year follow-up period in middle- and older-aged adults.Methods: Data from a Spanish nationally representative sample were analyzed (n = 1691; aged 50 years or older). Loneliness, social isolation, and cognition (immediate recall, delayed recall, verbal fluency, forward digit span, backward digit span, and a composite cognitive score) were assessed both at baseline and at follow-up. Adjusted generalized estimating equations models were performed.Results: Loneliness was significantly associated with lower scores in the composite cognitive score, immediate and delayed recall, verbal fluency, and backward digit span (B = -0.14 to B = -3.16; P < .05) and with a more rapid decline from baseline to follow-up in two out of six cognitive tests. Higher social isolation was associated with lower scores in the composite cognitive score, verbal fluency, and forward digit span (B = -0.06 to B = -0.85; P < .05). The effect of loneliness and social isolation on cognition remained significant after the exclusion of individuals with depression.Conclusions: Both loneliness and social isolation are associated with decreased cognitive function over a 3-year follow-up period. The development of interventions that include the enhancement of social participation and the maintenance of emotionally supportive relationships might contribute to cognitive decline prevention and risk reduction. PB Wiley SN 0885-6230 YR 2019 FD 2019-11-01 LK https://hdl.handle.net/20.500.14352/99900 UL https://hdl.handle.net/20.500.14352/99900 LA eng NO Lara, E., Caballero, F. F., Rico-Uribe, L. A., Olaya, B., Haro, J. M., Ayuso-Mateos, J. L., & Miret, M. (2019). Are loneliness and social isolation associated with cognitive decline?. International journal of geriatric psychiatry, 34(11), 1613–1622. https://doi.org/10.1002/gps.5174 NO Seventh Framework Programme. European Union NO Centro de Investigación Biomédica en Red de Salud Mental ACI-Promociona NO Proyectos de Investigación en Salud. Instituto de Salud Carlos III NO Generalitat de Catalunya DS Docta Complutense RD 6 abr 2025