If you wanted to be sure, you would have to get an Apolipoprotein B test done. You can do this privately in the UK. I haven't done it, because my HDL is high, my trigs low and the HDL/LDL ratio good. The ApoB test tells you the number of LDL particles, which is the gold standard risk indicator. Not particle size so much.
You just look at the numbers. 1.8/3.1 is quite good: your HDL is high compared to the LDL (more than half). Trigs/HDL should be < 0.8 and yours is, so that all looks good. Most important is that for trigs, lowest is best.
You just look at the numbers. 1.8/3.1 is quite good: your HDL is high compared to the LDL (more than half). Trigs/HDL should be < 0.8 and yours is, so that all looks good. Most important is that for trigs, lowest is best.