Characteristics of published studies of the association between the M235T polymorphism in <i>AGT</i> gene and CHD included in the meta-analysis.

PTCA, percutaneous coronary angioplasty; CABG, coronary artery bypass graft; ICD, international classification of diseases; ECG, electrocardiography; AMI, acute myocardial infarction; CHD, coronary heart disease; CVD, cardiovascular diseases; CVA, cerebrovascular accident; BMI, body mass index; WHO, world health organization; NR, not reported. *Exact significance probability.