As shown in Figure 5, serum MMP-9 levels were significantly higher in patients with pancreatic cancer (median = 255.14 ng/ml; quartile range, 125.43 ng/ml) than those with chronic pancreatitis (median = 210.22 ng/ml; quartile range, 12.48 ng/ml; p = 0.009) and normal controls (median = 203.77 ng/ml; quartile range, 17.04 ng/ml; p = 0.027). Here, MMP9 is linked to chronic pancreatitis.