Full description
Contains supporting information explaining the data analysis in more detail and additional analyses to test the robustness of the initial multinomial logistic regression predicting grandparental investment. Table S1, Descriptive data; Table S2, Hours of grandparental investment for the almost daily level; Table S3, True confounders between biological relatedness and grandparental investment; Table S4, Mediation effect of grandparent's age by health on grandparental investment; Table S5, Independent effects of fertility rates and regions of Europe; Table S6, Results for each investment level from the multinomial logistic regression; Table S7, Binary logistic regression for the entire sample including non-investors; Table S8, Multinomial logistic regression for each grandparental investment level excluding non-investors; Table S9, Binary logistic regression excluding non-investors.
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