Fig. 4

Nomogram predicting 3- and 5-year progression-free survival (a) and overall survival (b) in NPC patients. A vertical line is drawn from each factor, each factor was assigned to a point score, and the corresponding points represent how much the factor contributed to the risk. Summing these points to generate a total score by drawing a vertical line to the bottommost line, it can translate into the 3- and 5-year PFS or OS probabilities