Fig. 4From: The pretherapeutic systemic inflammation score is a prognostic predictor for elderly patients with oesophageal cancer: a case control studyKaplan—Meier analysis for OS and PFS according to treatment strategies in different SIS groups. a OS in the SIS-low group, b OS in the SIS-high group, c PFS in the SIS-low group, d PFS in the SIS-high groupBack to article page