Figure 1.

Markov state. Two groups were analyzed in the Markov model: GP group, treated with GP regimen for three cycles followed by CCRT; TFP group, treated with TFP regimen for three cycles followed by CCRT. During each 3-weeks cycle, patients either remained in their assigned health state or progressed to a new health state. CCRT, concurrent chemoradiotherapy; GP, gemcitabine and cisplatin; IMRT, intensity-modulated radiotherapy; M, Markov node; NPC: nasopharyngeal carcinoma; TFP, docetaxel and cisplatin plus fluorouracil.