Clinical variables
angina pectoris
CVD, MYOCARDIAL INFARCTION, CONGESTIVE HEART FAILURE
Patient demographics and clinical data, including age, sex, body mass index, and comorbidities, were obtained from medical records. CVD was defined as a medical history of congestive heart failure, angina pectoris, myocardial infarction, percutaneous transluminal coronary angioplasty, or coronary artery bypass surgery. Laboratory data were collected on hemoglobin, albumin, calcium, phosphorus, and creatinine levels at the time of patient enrolment and three months later in both patient groups.