Fig. 2

Demographics and results of phagocytosis of necrotic cell material (PNC) assay in all the study participants. Age of the patients and percentage of double-positive polymorphonuclear cells (PI+CD66+ PMNs) are expressed as median values (range in brackets). The percentage of double-positive PNC results is significantly higher in patients affected by SLE compared with healthy controls and non-SLE patients in the multicenter rheumatic group. PI propidium iodide, SLE systemic lupus erythematosus