Intima–media thickness of carotid arteries increased vs controls; increased also in carotid bulbs, abdominal aorta, and common femoral arteries; no differences between C-CAH and NC; positive correlations of carotid intima–media thickness and triglycerides and triglycerides/HDL cholesterol ratio; positive correlations of abdominal aorta thickness with cumulative glucocorticoid dose, triglycerides, and DBP SDS, and negative with androstenedione and ACTH. The gene discussed is POMC; the disease is congenital adrenal hyperplasia.