Apolipoprotein E (ApoE) is a genetic risk factor influencing the devel
opment of cardiovascular diseases and Alzheimer's disease. Patients wi
th obstructive sleep apnea (OSA) suffer an excess mortality and morbid
ity from cardiovascular diseases. The frequencies of ApoE alleles were
determined in 291 patients with OSA and 728 controls. The distributio
n of ApoE alleles and genotypes showed no difference between OSA and c
ontrols.