PPBP mRNA levels were significantly higher in the CHD group (5.439, 0.173–25.02) compared with the N (0.8470, 0.265–3.506), p = 0.0018) and H groups (0.173, 0.830–7.260), p = 0.0009) (Fig. 2A). This evidence concerns the gene PPBP and coronary artery disorder.