Dataset and supplementary materials for "Cognitive status and processing speed in Indian older adults: a cross-sectional analysis benchmarked against European normative data"

This record contains de-identified participant-level data and supplementary materials for a cross-sectional study of cognition and processing speed in Indian older adults. Global cognition was assessed with the Montreal Cognitive Assessment (MoCA) and processing speed with a choice reaction time (CRT) task based on the Deary–Liewald paradigm, implemented via the PsyToolkit web platform. The dataset includes one row per participant (n = 50) with variables for age, sex, education, living environment (community vs institutionalised), MoCA total score, CRT mean and variability, and derived measures (log10-transformed CRT, CRT z-scores, and education-adjusted MoCA). Supplementary tables provide multivariable regression results, benchmarking of Indian performance against European normative data, and a summary of European MoCA/CRT normative studies. A supplementary figure illustrates the MoCA administration and CRT task set-up. These data accompany the manuscript “Cognitive status and processing speed in Indian older adults: a cross-sectional analysis benchmarked against European normative data”, submitted to European Geriatric Medicine.