LD	linear dichrois;
ACS	acute coronary syndrome;
CAD	coronary artery disease;
CHD	coronary heart disease;
CI	confidence interval;
HWE	Hardy–Weinberg equilibrium;
HDL	high-density lipoprotein;
MeSH	Medical Subject Headings;
MI	myocardial infarction;
NOS	Newcastle–Ottawa Scale;
OR	odds ratio;
PCAD	premature coronary artery disease;
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses;
SCARB1	scavenger receptor class B member 1;
SCS	significant coronary stenosis;
SNP	single-nucleotide polymorphism;
SR-BI	scavenger receptor class B type 1;