Firstborn sex defines early childhood growth of subsequent siblings

Anthony Liu, Samuel Schafer, Ralph Nanan, Felicia Sundling & David Raubenheimer
Animal studies have shown that maternal resource allocation can be sex-biased in order to maximize reproductive success, yet this basic concept has not been investigated in humans. In this study we explored the relationships between maternal factors, offspring sex and prenatal and postnatal weight gain. Sex-specific regression models not only indicated that maternal ethnicity impacted male (n = 2456) and female (n = 1871) childrens’ postnatal weight gain differently but also that parity and mode...
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8 downloads reported since publication in 2020.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?