At baseline , patients with ACS exhibited lower high-density lipoprotein cholesterol ( 43.511 versus 45.811 mg/dL ; P = 0.002 ) , a higher apolipoprotein B : apolipoprotein A-1 ratio ( 0.900.24 versus 0.830.24 ; P < 0.001 ) and greater percent atheroma volume ( 37.38.5 % versus 35.98.1 % ; P = 0.01 ) when compared with non-ACS patients .