For the combined endpoint of cardiovascular death and nonfatal myocardial infarction in the study by Blankenberg et al. [13], the unadjusted HR was 1.30 (1.11; 1.52, p < 0.002) with increasing MMP-9 quartiles, but it is not clear whether or not this remained significant after adjustment for potential confounders. This evidence concerns the gene MMP9 and myocardial infarction.