Interestingly, although ficolin-1 levels correlated with white blood cell (WBC) and more weakly with platelet (PLT) counts (r = 0.49, p < 0.000001 and r = 0.24, p = 0.003, respectively), high leukocytosis was often associated with low ficolin-1. Here, FCN1 is linked to Increased total leukocyte count.