Hi, these questions are better off asked of your doctor, and he or she seems to be fine with the results. You can always consult another doctor if you have concerns.
I appreciate what you were asking, it makes sense to me, I researched a little and was surprised to find the following. This may explain your doctor's lack of concern with the LDL segment. Are you on medication (Statins) already, or have you achieved reductions by diet and exercise changes? Did you have issues with HDL, LDL, Triglycerides, and Cholesterol before your stent? This doesn't answer your question, but it shows a reduction in focus on LDL unless the patient falls into one of the four groups, which you do. If you're on Statins now, you would be in compliance with the material on the page that I linked to.
"The American College of Cardiology (ACC) and American Heart Association (AHA), in conjunction with the National Heart, Lung, and Blood Institute (NHLBI), have developed and released Guidelines for Cholesterol Control after 9 years of the release of the last version.
And they contain some substantial changes!
Gone are the recommended LDL- and non-HDL–cholesterol targets, specifically those that ask physicians to treat patients with cardiovascular disease to less than 100 mg/dL or the optional goal of less than 70 mg/dL."
Unless you fall into one of 4 groups. drameya.com/2013/12/05/new-cholesterol-guidelines-abandon-ldl-targets/