Meta-analyses of ABCA1 R219K and M883I polymorphisms and risk of AS in each subgroup.

A: Asians, C: Caucasians, PB: population-based, HB: hospital-based. CS: cohort study, CCS: case-control study. BS: based on score (Studies with score ≤6 were excluded). BH: based on HWE (Studies without HWE were excluded). BT: based on article type (Master theses were excluded). CAD: coronary artery disease, IS: ischemic stroke. SS: sample size.