Adjusted* hazards ratios for progression to carotid atherosclerotic lesions for baseline common carotid artery phenotypes†‡. *Controlled for age, race and gender. †‡ Isolated or combined IMT and diameter enlargement based on A) observed measures and B) observed/expected ratios. Diamond = diameter and IMT enlarged. Square= isolated IMT enlargement. Triangle = isolated diameter enlargement. Solid = right and open = left.