Table 1.

Patient characteristics.

^a)Student t-test, ^b)Pearson χ² test, or Fisher exact test. Data are presented as number of patients (%) unless otherwise indicated.

Abbreviations: SCRT, sequential chemotherapy followed by radiotherapy; CCRT, concurrent chemoradiotherapy; ECOG, Eastern Cooperative Oncology Group; LDH, lactate dehydrogenase; IPI, International Prognostic Index; NKPI, natural killer/T cell Prognostic Index.