The impact of maternal occupation on children's health: A mediation analysis using the parametric G-formula

Background: Previous studies have found that maternal occupational choice can directly impact fetal health and mothers' energy and time available for childcare. Moreover, reduced caregiving time is associated with poorer child health. However, how maternal occupational factors (work nature/income/stress) affect child health has not been fully explored. Methods: Data were extracted from China Family Panel Studies (CFPS) from 2014 to 2020. A parametric Gformula Model was constructed to simulate the direct impact of maternal occupational factors (work nature, income, and stress) on child health. Furthermore, we explored their indirect effects mediated by maternal physical health, mental health, or occupational factors for the overall sample and by different age groups of the children. Results: Maternal work nature and income had positive direct impacts on child health, especially for children whose mothers were employers of budgeted positions. Maternal work stress had a negative direct impact on children's health. Maternal work stress mediated the positive impact of maternal work income (9%). Maternal work stress affected children's health directly for children aged under 6, while for children aged 7-15, it had an indirect impact mediated by maternal physical health (43%), mental health (44%), and income (47%). Conclusion: Attention should be paid to maternal occupational factors (especially to work stress) and to the varying care needs of children from their mothers at different ages to improve children's health and prevent the transmission of maternal occupation to children's health.