Among the groups, those with lower baseline hemoglobin concentrations were more likely to be older, past history of CAD, non-Q wave myocardial infarction and diabetes; and less likely to be a smoker and hyperlipidemia, and to have family history of CHD; and had lower LVEF, lower albumin, lower total cholesterol, lower triglyceride, lower diastolic pressure, higher pulse pressure and higher creatinine. The gene discussed is ALB; the disease is hyperlipidemia.