When comparing the mean LDL particle size across the various clinical conditions (non ACS 261.7 ± 8.2 Ao, unstable angina258, 9 ± 13 Ao, non ST elevation myocardial infarction258, 7 ± 11, 5 Ao and ST elevation myocardial infarction subgroup 257.0 ± 14.3 Ao) results indicated a significant difference.