ALB and major depressive disorder: Comparison of blood test parameters between males and females in the recurrent MDD group revealed that the neutrophil, lymphocyte, albumin and RPR values were increased (P < 0.05), and the platelet, MPV, PCT, RDW, PLR and PAR values were decreased (P < 0.05) in males compared to those in females The data are shown in Fig. 1C.