From the Method section, just a few paras in (I just clicked on the link provided, I do not subscribe to any journals): We assessed proportions of adults with optimal cardiometabolic health, based on adiposity, blood glucose, blood lipids, blood pressure, and clinical CVD; and optimal, intermediate, and poor levels of each component among 55,081 U.S. adults in the National Health and Nutrition Examination Survey.
That doesn't actually explain anything, though. What is "optimal" in each of those categories and why is that level optimal as opposed to any other one?
This is just the abstract to anyone who doesn’t have access to the journal.