I'm surprised 5 people haven't jumped in to tell you that LDL of 278 is something to be proud of. Pre-primal, my numbers went like this for years: LDL - 110, HDL - 21, Trigs - 450. The doctors all said I was doing great, but if I ate less fat and more whole grain my trigs would go down and HDL come up.
After 1 year on paleo, my numbers were: LDL - 190, HDL - 45, Trigs - 30. Doctors recommended statins! I said 'no thanks'. Still, I didn't like the high LDL, which had been creeping up.
I spent a year eating fish every day, supplementing with Krill oil (300mg) and Vit D (5000IU/day in winter), lifting heavier things, and adding starches to my diet. I now eat about a pound of potato and/or rice per day. My weight is very stable, but best of all, after a year of this, my LDL is now 120, HDL - 58, Trigs - 50.
Doctors do not want to talk pattern A/pattern B, advanced lipid tests, or paleo. They want to talk about High LDL, because that's all they know. I don't think high LDL is anything to be proud of, and I was able to lower mine with fish, starch, and lifting.