CD4 and bronchopulmonary dysplasia: Notably, the algorithm discovered vital reductions in the proportion of B cells, CD4 T cells, and CD8 T cells (p < 0.001), whereas the proportion of neutrophils, dendritic cells, MDSC, monocytes, and macrophages was increased (p < 0.001) in BPD patients in comparison to controls (Figure 4B).