Celina F. Pluim, Juliana A. U. Anzai, Jairo E. Martinez, Diana Munera, Ana Paola Garza-Naveda, Clara Vila-Castelar, Edmarie Guzmán-Vélez, Liliana Ramirez-Gomez, Julian Bustin, Cecilia M. Serrano, Ganesh M. Babulal, Maira Okada de Oliveira, and Yakeel T. Quiroz
Subjective cognitive decline (SCD), which precedes Mild Cognitive Impairment and dementia, may be affected by purpose in life (PiL) and loneliness in older adults. We investigated associations among PiL, loneliness, and SCD in US Latino ( n = 126), Black ( n = 74), Asian ( n = 33), and White ( n = 637) adults. Higher PiL predicted lower SCD in all groups (p-values < .012), except Black participants. Lower loneliness predicted lower SCD in Latino and White groups (p-values < .05), and PiL moderated this association in White adults. PiL and loneliness may play important roles in cognitive decline. Differential predictors of SCD suggest differential targets for preventing cognitive decline and dementia across ethnoracial groups.