Abstract summary 

We compared the trajectory of activities of daily living (ADL) in a nationally representative sample of older Nigerians with their Spanish peers and identified factors to explain country-specific growth models.Data from two household multistage probability samples were used, comprising older adults from Spain ( = 2,011) and Nigeria ( = 1,704). All participants underwent assessment for ADL. Risk factors including sex, household income, urbanicity, years of education, depression, alcohol consumption and smoking were assessed using validated methods. State-space model in continuous time (SSM-CT) methods were used for trajectory comparison.Compared with Nigerians (µ=0.44,  = 0.015,  < 0.001), Spanish older adults had higher disability scores (µ=1.23,  = 0.021,  < 0.001). In SSM-CT models, the rate of increase in disability was faster in Nigerians (Nigeria: β = 0.061, <.01; Spain: β = 0.028,  < 0.010). An increasing course of disability in the Spanish sample was predicted by female sex, lower education and depression diagnosis.The rate of increase in disability was faster in older Nigerians living in an economically disadvantaged context.

Authors & Co-authors:  Ojagbemi Akin A Estrada Eduardo E de la Torre-Luque Alejandro A Moreno-Agostino Dario D Lara Elvira E Caballero Francisco Felix FF Bello Toyin T Olaya Beatriz B Haro Josep Maria JM Gureje Oye O Ayuso-Mateos Jose Luis JL

Study Outcome 

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