S1 Appendix - The long-term effects of parental marriage age on children’s educational human capital

Descriptive statistics of key variables by region and parental gender. Appendix A presents descriptive statistics of key variables disaggregated by region (urban vs. rural) and parental gender (mother vs. father). These tables are intended to illustrate sample heterogeneity and contextual differences in the effects of parental marriage age on children’s educational outcomes. Table A.1 compares urban and rural families, showing disparities in marriage age, educational attainment, income, and family structure. Table A.2 contrasts maternal and paternal characteristics, highlighting gender-based differences in marriage timing, education, and health. These data support the robustness of the main analysis by emphasizing socio-demographic variability.

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