Mathematics, 16.10.2020 20:01 yoongnzl

The article "Americans are "Getting the Wrong Idea" on Alcohol and Health (Associated Press, April 19,2005) nave concluded that observational studies in recent years that have concluded that moderate drinking is associated with a reduction in the risk of heart disease may be misleading. The article refers to a study conducted by the Centers for Disease Control and Prevention that showed that moderate drinkers as a group, tended to be better educated, wealthier, and more active than nondrinkers. Explain why the existence of these potentially confounding factors prevent drawing the conclusion that moderate drinking is the cause of reduced risk of heart disease.

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The article "Americans are "Getting the Wrong Idea" on Alcohol and Health (Associated Press, April 1...