The frequency of low birthweight in the United States _____ throughout most of the twentieth century, and then _____ in the 1990s and early 2000s.

Question

Quizplus · Accepted Answer

The frequency of low birthweight in the United States decreased throughout most of the twentieth century due to improvements in healthcare and maternal nutrition, but it increased in the 1990s and early 2000s due to factors like increased multiple births and changes in maternal demographics.

The Frequency of Low Birthweight in the United States _____