For decades, studies suggested that moderate alcohol intake could protect the heart, reduce diabetes risk or even help you live longer. Newer research tells a different story.
E: Good thing I didn’t put any money into this, as it seems I was wrong about this study.
I am willing to bet that this study is one of the many that interpret the so called J-curve as meaning “moderate use is healthy”. These studies fail to take in consideration that some/many of those who don’t use alcohol at all or use very little, have some kind of medical condition that prevents them from consuming alcohol, but also increases their risk of death. This group of people skews the data to look like a J-curve. Handle this group correctly in the data and you get a straight line.
This was a prospective study that looked at lifelong abstainers, not people who gave up drinking. Furthermore, reduced overall mortality was found in light/moderate drinkers even after excluding participants with pre-existing conditions.
That’s the correct way to control for the issue you raised.
E: Good thing I didn’t put any money into this, as it seems I was wrong about this study.
I am willing to bet that this study is one of the many that interpret the so called J-curve as meaning “moderate use is healthy”. These studies fail to take in consideration that some/many of those who don’t use alcohol at all or use very little, have some kind of medical condition that prevents them from consuming alcohol, but also increases their risk of death. This group of people skews the data to look like a J-curve. Handle this group correctly in the data and you get a straight line.
This was a prospective study that looked at lifelong abstainers, not people who gave up drinking. Furthermore, reduced overall mortality was found in light/moderate drinkers even after excluding participants with pre-existing conditions.
That’s the correct way to control for the issue you raised.
From a statistical design perspective, that was a really well done analysis.