“twins” Charts

Twin Birth Rates Among Different Ethnicity in the U.S. »

The twin birth rate among non-Hispanic white women has more than doubled since 1980. Look at the following graph to…

SavvyRoo
by: SavvyRoo
views: 48

Twin Birth Rates in the U.S. »

According to the National Center for Health Statistics, the older maternal age distribution explains some of the increase in the…

SavvyRoo
by: SavvyRoo
views: 48

A Shorter Pregnancy Period for Mothers of Twins »

The average duration of pregnancy decreases as the plurality of births increases. The average gestational period for singletons was 38.7…

Steven Davies
by: Steven Davies
views: 303