Figure 2. hsCRP, interleukin-1 receptor antagonist, interleukin-6, neopterin, and macrophage migration inhibitory factor concentrations in blood over 18 months of follow up after percutaneous coronary intervention. Boxes represent 50% of all samples and thick line in boxes is the median concentration. Bars represent 95% confidence intervals; nonparametric Friedman Rank test was used. N for all groups was 172.