Summary of all included studies in the meta-analysis.

P-B:population-based study; H-B:hospital-based study; CAD: coronary artery disease; MI: myocardial infarction; ACS: acute coronary syndrome; M(%):male(percent); F:female; HTN: hypertension; DM: diabetes mellitus; BMI: body mass index; a:data not available; Age and BMI are expressed as mean ±SD (standard deviation) or median (5th and 95th percentiles)