The 10/66 INDEP mixed methods study of the economic and social impact (at household level) of residing with a care dependent older person in China, Mexico, Peru and Nigeria

The 10/66 Dementia Research Group INDEP study (The Economic and Social Effects of Care Dependence in Later Life) was funded by the ESRC/ DFID joint poverty alleviation programme. We planned to investigate the impact of care dependence upon social and economic functioning at the household level in China, Mexico, Peru and Nigeria (1). In a nested cohort study design, households were pre-selected as engaged in incident care, chronic care, or no care (control households) of older adults, on the basis of findings from our previous 10/66 DRG baseline and incidence wave population-based surveys in rural and urban sites in Mexico, Peru and China (2;3). All care households and an equivalent number of randomly selected control households (batch matched for the age of the oldest qualifying resident) were invited for the INDEP follow-up. Design (sampling) and response weights are provided, to weight back to the overall composition of the population-based sample for the 10/66 incidence wave surveys in these sites.