Six-year OS rate in patients with SAA treated with ATG/CSA with or without G-CSF. (A) OS of all 192 patients; (B) OS according to disease severity, comparing patients with SAA (blue), and very SAA (green); (C) OS according to age groups: patients < 20 years (blue), patients aged 20-40 years (green), patients aged 40-60 years (red), and patients aged > 60 years (lilac).