Fig. 4

Lipoprotein profile before and after apheresis. Lipoproteins pre and post apheresis were separated into their density classes and LDL were divided into 6 subclasses by further ultracentrifugation. Density increases from left to right (see methods for details). a: Measured ApoB values (mean ± SD of 6 patients) are given as closed symbols (measured pre-apheresis values: closed triangles; measured post-apheresis levels: closed squares). Expected post apheresis values calculated by apheresis efficiency are given in open red circles. b: Comparison of measured and calculated post-apheresis levels by Wilcoxon matched pairs test, a value of p < 0.05 was considered statistically significant