Subgroup Analyses of Overall Survival (OS) and Progression-Free Survival (PFS) in the Intention-to-Treat Population
ONCOLOGY
BMI indicates body mass index (calculated as weight in kilograms divided by height in meters squared); CRTCT, simultaneous integrated boost radiotherapy with concurrent and consolidated oral S-1 chemotherapy; ECOG PS, Eastern Cooperative Oncology Group performance score; HR, hazard ratio; RT, simultaneous integrated boost radiotherapy alone.