Wang, Rui; Chen, Xi; Li, Xun - 2021
channel of mortality selection. However, we observe a slight decline in the sex ratio among children born to black mothers … effect on the length of gestation or rate of prematurity. However, these effects are larger among children born to black … mothers, as indicated by an increase in the rate of LBW by 2.5 percentage points (or 19 percent). Children born to white …