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Marginal risk differences in the expected prevalence of ≥ 1 unmet need with an activity or independent activity of daily living at each time point (t) given counterfactual outcomes of having at least one adult child in the US versus having no children in the US at t plus all prior ts, restricted to respondents with need for assistance with at least one activity or independent activity of daily living (1200 women and 1225 men at baseline).
