To investigate how trans fat consumption might affect fertility, researchers analyzed data available from 18,555 healthy women who participated in the Nurses' Health Study between 1991 and 1999. All were married and trying to get pregnant. It was reported that for every 2 percent increase in the amount of calories a woman got from trans fats instead of carbohydrates, her risk of infertility increased by 73 percent.
"The relationship between the consumption of trans fat and fertility may not be there at all, since it could all be affected by a confounding variable such as exercise or environmental variables."

Question

Quizplus · Accepted Answer

Confounding variables, such as exercise habits or environmental factors, can influence both trans fat consumption and fertility, potentially skewing the observed relationship.

To Investigate How Trans Fat Consumption Might Affect Fertility, Researchers