Fig. 4From: Benefit of chemotherapy based on platinum with definitive radiotherapy in older patients with locally advanced esophageal squamous cell carcinomaKaplan–Meier curves according to age, applied therapy, and tumor stages categories for the whole study population showing A–B overall survival (p = 0.020 for all) and progression-free survival (p = 0.006 for all) of patients received RT alone and aged 65–74 years in different tumor stages; C–D overall survival (p = 0.083 for all) and progression-free survival (p = 0.167 for all) of patients received CRT and aged 65–74 years in different tumor stages; E–F overall survival (p = 0.063 for all) and progression-free survival (p = 0. 025 for all) of patients received RT alone and aged 75 years or older in different tumor stages; G–H overall survival (p = 0.284 for all) and progression-free survival (p = 0. 241 for all) of patients received CRT and aged 75 years or older in different tumor stages. RT, radiotherapy; CRT, chemoradiotherapyBack to article page