Levels of ApoB for Plaque regressions

According to the PESA paper 70mg/dl was the number where plaque regression can start to occur, but is anyone aware of an ApoB number? Or if such research exsists?

Here are some “typical” correlations among these metrics, stratified by population percentile. Of course, there can be outliers with discordant measures, but this will at least give you an idea.