Changes of laboratory parameters in ALPS-FAS and ALPS-U. All suspected and definite ALPS patients were categorized by genetic results as ALPS-FAS or ALPS-U. (A) DNTs. (B) In vitro apoptosis functional test. (C) sFASL. (D) IL-10 (P = .3070). (E) IL-18 (P = .0514). (F) Evaluation of combinations of laboratory parameters to differentiate ALPS-FAS and ALPS-U. All data are presented as median ± interquartile range. ****P < .0001.