Association between serum lipids and apolipoproteins level and chronic subdural hematoma a case-control study

There are 137 cases of chronic subdural hematoma and a 3-fold matched control group (411) in this study. Controls, matched for age (±2 years) and gender, were randomly selected from the patients who come from Department of Emergency Surgery in our hospital, and were excluded if they had stroke, coronary heart disease or treated with lipid-lowering agents. The data included demographic characteristics (age, gender, marital status), past medical history (including a history of hypertension, diabetes mellitus, malignant tumor, kidney failure and dementia), smoking habits, alcohol consumption, head trauma within 3mouth, anticoagulant.