Fig. 4
Boxplot graph resuming the lymphocyte count in acute coronary syndrome (ACS) patients with chronic obstructive pulmonary disease (COPD+) and without COPD (COPD−) during patient a admission and b discharge. Lymphocyte count in COPD+ and COPD− patients in c admission and d discharge according to SERPINA1 promoter hypermethylated (white) and hypomethylated (grey) statuses. All panels: the lower (Q1) and upper (Q3) quartile, represent observations outside the 5–95 percentile range. The graph also shows the median (continuous middle line) and the mean (dashed line) of lymphocytes (× 103 cell/µl) per study group. *p < 0.05