Fig. 5.

Adjusted 5-year disease-specific conditional survival for patients with nasopharyngeal carcinoma stratified by age, and adjusted for sex, histology, race, tumor extension, year of diagnosis, and use of radiation (A); sex, and adjusted for age, histology, race, tumor extension, year of diagnosis, and use of radiation (B); histology, and adjusted for age, sex, race, tumor extension, year of diagnosis, and use of radiation (C); and race, and adjusted for age, sex, histology, tumor extension, year of diagnosis, and use of radiation (D). The x-axis represents patients who have already survived 0 to 5 years.