APOB and coronary artery disorder: Some scholars believe that MHR (18–20), LMR (21–23), NLR (24, 25), PLR (26, 27), apoB/apoA-1 (28, 29), and LDL-c/HDL-c (30) have a certain degree of diagnostic effect on CAD, but there is no clear conclusion regarding the diagnostic value of these models for PCAD.