In a study by Shaw and colleagues, the higher the level of maternal obesity, the higher the rate of neural tube defects. Folic acid supplements
A) were effective in reducing neural tube defects for all women.
B) were not effective in women weighing more than 154 pounds.
C) were effective only in the most obese women.
D) increased the rate of neural tube defects.

Question

Quizplus · Accepted Answer

Folic acid supplements were found to be less effective in reducing neural tube defects in women weighing more than 154 pounds, according to the study by Shaw and colleagues.

In a Study by Shaw and Colleagues, the Higher the Level