That's right, no association was found.

Perhaps the title should be changed to "No Association Between Egg Consumption and Risk of Cardiovascular Disease."

The association is that there is no association. So it's an accurate title.

That statement is technically correct. And while being technically correct is great for the fictional bureaucrats on Futurama (I really miss that show), it can also lead to click-bait headlines.

Most people will read a headline that says "The association between..." to mean that there is an association (because that is how it is typically used).

How would you propose they change it? They found no association between eggs and CVD and found association between eggs and CAD.

"Association between egg consumption and risk of cardiovascular outcomes"

Just putting "No" at the beginning of the title would do the trick.

A number of studies show a direct association. As of now, the number is zero.