AGEs	advanced glycation end products
CAD	coronary artery disease
CIs	95% confidence intervals
GWAS	genome-wide association studies
HWE	Hardy–Weinberg equilibrium
IDF	International Diabetes Federation
JBI	Joanna Briggs Institute
LDL	low-density lipoprotein
NO	nitric oxide
OR	odds ratio
PICOS	Population, Intervention/Exposure, Comparison, Outcome, and Study
PRISMA	Systematic Reviews and Meta-Analyses
PROSPERO	Prospective Register of Systematic Reviews
REML	restricted maximum likelihood
SNP	single nucleotide polymorphisms
T2DM	type 2 diabetes mellitus